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(meteorobs) Radio Meteor Obs. Bull. May 2001



Radio Meteor Observation Bulletin No. 94                        May 2001

Observer:  Enric Fraile Algeciras
Location:  Paseo Bonanova, 8 Barcelona  (02 07'E, 41 24' N)
Frequency: 48.24715 MHz.
Transmitter Location:  Biedenkopf C2 TV, Video Frequency 48.250 MHz,
           ERP 100 kW,  Azimuth 90 +/-65
Antenna:   3 element Yagi Azimuth 200 deg (NE), elevation 20 deg
Receiver:  home made converter 20 dB gain, 1 dB noise and Kenwood TS-830S.
           10 dB attenuator in the receiver to reduce direct reception
Sensitivity: 0.25 uV for 10 dB S/N
Observing method: the audio signal of the video carrier is received using
           a narrow CW filter (500 Hz) and fed into the PC in real time.
Data sampling system: own written software "MSD" with sound card.

   |   May 2001
UT |  1   2   3   4   5   6   7   8   9  10  11  12  13  14  15
---+------------------------------------------------------------
 0h| 10   7   7   9  19  39  30  17  17   6   0  23   9   6   5
 1 |  9  11  11  15  17   6   6   7  12   4   0   3  17   8   4
 2 |  9  15  15  22  21  12  18  15  15   2   1  87  20  17   3
 3 |  8  16  39  45  46  23  23  73  23  20  13  13  29  24   8
 4 |  0  42  52  62  31  38  37  99  36  58  29  66  26  25 137?
 5 |  0  56  43  52  60  58  32  31  30  46  47  56  38  97  58
 6 |  0  45  55  70  61  58  36  66  79  40  44  54  31  25  17
 7 | 21  39  45  39  68  52  32  26  47  42  25  41  34  54 106?
 8 | 72  33  34  27   ?  23  14  68  60  80  15  30  22  41  79
 9 | 39  23  24  23  16  26  10  29  56  51  70  22  45  75   8
10 | 34  25  69  28  48  25   2  44  35  50  10  23  17  24  14
11 | 35  26  22  15  31  36   8  29  38  42  30  29  21  21  37
12 | 45  26  45  28  49  37  23  11  21  47  43  27  23  15  31
13 | 48  49  37  33  56  46  15  34  36  27  41  57  55  56  44
14 | 37  43  27  17  46  28  19  32  62  10  61  19  46  24  26
15 | 33  26  14  15  24  10  17  15  32  24  17  16  22  13  95
16 | 16  14  13  11  10   7   7   6  16  18  77  15  17  11 145?
17 | 11  10  11  29 122? 13  10   9  22  67 103?  9  10   6  22
18 | 15  13   7  25  95? 10  14   0   9  40 108?  6  14  43  90?
19 | 22   9   9  25 164? 17  14   8   6  43  10   6  18  29  49?
20 | 28   8  11  18  44?  8  18  11   4   1  13  12  17   9 140?
21 | 26  18  15  15   7  15  24  12  14   2   9  10  18  10  34?
22 | 20  14   9  20  12  21  22  17  15   2  15   7  24   4   9
23 | 18  27  16  15  15   7  26  24  19   3   4  15   9  18   3
---+------------------------------------------------------------
UT |  1   2   3   4   5   6   7   8   9  10  11  12  13  14  15
   |   May 2001

   |   May  2001
UT | 16  17  18  19  20  21  22  23  24  25  26  27  28  29  30
---+-----------------------------------------------------------
 0h|  4  18  17  10  28  33  20  23  26  33  31  21  31  19  20
 1 |  5  14  26  21  23  34   9  17  56  51  22  18  26  23  37
 2 | 25  28  49  30  23  19  34  19  20  38  26  19  37  24  38
 3 |  7  32  49  15  10  17  14  32  37  49  29  37  49  30  50
 4 | 32  43  82? 30  23  16  63  39  40  56  45  43  48  24  53
 5 | 75  31  77? 45  37  34  44  47  73  68  42  58  51  54  54
 6 | 34  64  84? 39  54?117?  9  44  51  32  59  50  36  36  40
 7 | 72  72 138? 58 148?131? 14  42  56  62  51  46  58  36  35
 8 | 40 151? 65  32  45? 22  34  41  22  65  37   3  28  24  23
 9 | 91? 83? 51  16  30  11  46  60 150? 29  27  20  23  14  30
10 | 80? 11  20  32  21  22   9  76  54  20  26  24  24  27  14
11 | 23  49  57  30  26  33  28 100? 37  36  55  55  16  24
12 | 35  74  22  48  42  31  39  93? 70  72  78  53  39  36
13 | 50  48  41  62  60  27  65 107? 44  76  64  73  37  41
14 | 34  26  12  30  47  26  43  51  50  71  61  55  42  26
15 | 24  26  56  17  36  17  39  26  22  61  45  46  38  44
16 | 67  24  91  32  13  10  17  15  27  27  37  19  24  27
17 | 17  19   8  20  20  10  29  21  22  17  91  21  61  67
18 |  9   7  17  17  13  65  15  60  25  19  18  16  16  54
19 |  6  18  16  21  17 107? 15  15  18  17  13  30  19   5
20 | 13  13  13  10  14  26  16 323? 46  78? 19  23  11  48
21 | 17  19  21  17  21  15  21  19  53  68? 30  23  26  25
22 | 15  33  21  34  30  24  33 209? 42  61? 39  32  16  27
23 | 21  19  30  17  18  27  21  51  44  34  25  29  23  28
---+-----------------------------------------------------------
UT | 16  17  18  19  20  21  22  23  24  25  26  27  28  29  30
   |   May  2001

Note:
. ? local interference or propagation opening


      Enric Fraile Algeciras

---------------------------------------------------------------------------
Observer: Michael Boschat
Location: Halifax, Canada (63 36'W, 44 39'N, 58 meters above sea level)
Listening Frequency: 83.24 MHz
Receiver: Icom R-10
Antenna : resonant dipole
Antenna Direction: Horizontally polarized with lobes in E-W plane, elev 0 deg
Filter  : high-Q (Q at least 300) bandpass filter between antenna & receiver.
Listening Mode: CW
Recording method: listening by ear

                       May 2001

       Number of meteors heard in one hour interval

    | UT
May | 09h 10  11  12  13  14  15  16  17  18  19  20
----+-----------------------------------------------
 1  |  -   -   -  22* 13*  *   *   -   -   -   -   -
 2  |  -  35  15  53  45  33  21   -   -   -   -   -
 3  |  -   -  16  33  22  23  21   -   -   -   -   -
 4  |  -  13  31  21* 24* 22*  *   *   -   -   -   -
 5  |  -   -  29  50  43  27*  *   *   -   -   -   -
 6  |  -  23   8*  *   *   *   -   -   -   -   -   -
 7  | 13* 30* 32*  *  22*  *   *   *   -   -   -   -
 8  |  -  44* 37* 30* 22*  -   -   -   -   -   -   -
 9  |  -   -   -   -   -   -   -   -   -   -   -   -
10  |  -   -   -  47  66  71  40  60  55  50  36  21
11  |  -   -  38  37  32  72  53  38  48   -   -   -
12  |  -   -   -  34  25*  *   *   *   -   -   -   -
13  |  -   -   6# 34  47  56  48  27  42  38   -   -
14  |  -   -  31  37  35  62  48  42   -   -   -   -
15  |  -   -  38  40  27  15* 52   -   -   -   -   -
16  |  -   -  26  21   6*  *   *   -   -   -   -   -

22  |  -   -   -   -  43  25   -   -   -   -   -   -

29  |  -   -   -  18  11   -   -   -   -   -   -   -
30  |  -  16  20   *   *   -   -   -   -   -   -   -
----+-----------------------------------------------
May | 09h 10  11  12  13  14  15  16  17  18  19  20
    | UT

Notes:
. no corrections for radiant position made to the counts
. - = no observations made
. * = Interference
. # = 15 minute observation before full hour watch.


      Mike Boschat

----------------------------------------------------------------------
Location: Astronomical Observatory, Ghent University, Belgium
          (ED50 coordinates: 3 42' 32" E, 51 01' 25" N)
Antenna (2x): 4 elements horizontal Yagi, pointed East, elevation 20 deg
Antenna amplifier: 10 dB gain
        narrow band resonance lambda/4 antenna filter
Frequency: (1)=66.29 MHz (signal) and (2)=65.3 MHz (interference control)
Receiver (2x): modified commercial FM receiver
Data acquisition: 12 bits PC-based A/D convertor, 250 Hz sampling rate
Interference rejection:
   dual setup: receiver (1) tuned at distant transmitter, receiver (2)
   tuned at empty frequency. Anti-coincidence measurement rejects
   registration of broadbanded spurious signals (lightning, computers,
   ignition motors, etc).
Further information:
   see WWW page (additional info + observational data)
   http://allserv.rug.acdot be/~hdejongh/astro/meteor/meteor.html
Data format:
   results are shown as total reflection time, expressed as
   a percentage. The actual number shows 10 times this value.
   When no figure is shown, the equipment was either out of service,
   or results could have been affected by interference, sporadic-E.


   -------------------------------------------------------------
   | May 2001 | 10x % reflec. time | horiz: day | vert: time UT|
----------------------------------------------------------------
   |   1   2   3   4   5   6   7   8   9  10  11  12  13  14  15
---+------------------------------------------------------------
 0 |   8   7   6  12   6   5   4   6   8   3   3  11   4   4   3
 1 |  20   7  10  11   8  10   9   5   5   6   5   8   5   7   8
 2 |  45  15  22  22  21  21  10  41  13   8   8  16  12   4   5
 3 |  34  32  30  61 108  55  32  46  39  20  23  33  16   8  15
 4 |  34  50  44  84  77  46  27  44  26  34  42  15  10  10  17
 5 |  64  59  60  87  59  59  23 138  39  35  41  15  16  17  12
 6 |  82  59  77  94  96  49  75  62  53  49  28  19  44  21  19
 7 |  66  50  81 117 140  84  61  77  86  25  28  19  36  40  35
 8 |  46      65  86 113  45  69  65  51  32  27  32  68  24  21
 9 | 104  41  60  61  62  55  50  58  58  36  41  40  86  37  56
10 |  73  84  88  64  68  56  54  62  50  51  22  34      18  41
11 |  58  22  44  50  47  28  16  66  24  23  17  36      11  20
12 |  38  37  22  25  22  17  14      21  16  12  34  17  10  15
13 |  19  33  20  14  23  21  13  11  18   8  11  30  25   7   8
14 |  24  66  12  14  13  16  16   8   6   6  10  13  27  10  13
15 |   9  12   6   7   7   3   4  10   7   6   8  25   4   3   3
16 |  15   4   6   5   5   3   6   6   9   8   5   8   1   2   5
17 |   3   5  28   4   7   3   6   5   3   9   4   3   1   2   2
18 |   3   6  18   7   2   5   6   4   2   4   2   4   1   3   3
19 |   2   7  12   8   3   2  10   4   5   5   6   3   4   1   1
20 |  12   9   3   6   6   2  14   5   5   3   7   6   3   3   2
21 |   6  11  14  25  12   2   7   4   1   4   5   6   2   6  19
22 |   2  11   8   4   4   3   9   2   4   3   2   2   2   1   9
23 |   4   8   6   7   4   3  11   2   2   0   2   3   3   3   4
---+------------------------------------------------------------
   |   1   2   3   4   5   6   7   8   9  10  11  12  13  14  15

   -----------------------------------------------------------------
   | May 2001 | 10x % reflec. time | horiz: day | vert: time in UT |
--------------------------------------------------------------------
   |  16  17  18  19  20  21  22  23  24  25  26  27  28  29  30  31
---+----------------------------------------------------------------
 0 |   5   6   7  16   0  13   6   5  11   6   8   6  13   7   8   6
 1 |   5   7  10  15      10  15   7   4  12  15   7   7   5  10   6
 2 |  66  11  10  25      17  21  26   8   7  18  31  15  19  32  22
 3 |  43   9  42  35      34  50  28  26  11  48  32  12  11  21  32
 4 |  13  13  38  24      23  39  36  18  12  47  34  14  23  18  16
 5 |  24  16  53  31      22  14  22  14   9  21  15  28  19  34  47
 6 |  32  32  65  39      23  59  26  16   2  21  15  30  21  32  56
 7 |  14  29  68  49      14  52  19   9   9  26  26  42  38  24  35
 8 |  23  25  57  49      20  26  25  33      37  27  20  23  33  42
 9 |  12  40  62  43      28  25  26          29  44  43  18  36  62
10 |  13  27  46  37      24  25  30  47  29  43  22  26  28  33  37
11 |  17  17  41  27      29  36  39  20  29  29  25  18  26  34  25
12 |   9  21  26  25      12  41  32  32  28  28  20  18  19  22  20
13 |  15  38  15  29  18  14  15      17  24  51  30  14   8  35  16
14 |  23  16      18  18   5  10      12   9   7  12   6  18  19  21
15 |   6   3      23  27   5  16       4  11   6  12   3   8   6  11
16 |   2   4      26  29   4   5           4   8   3   6   3      10
17 |   3   4           1   3   4           3   8   2   7   2   5   2
18 |   3   1  37   9   6   6  11           3   4  12   3  10   2   4
19 |   3   3  39       6   4   4      25       3   5   4   3   9   4
20 |   3   8  20       4   6   6  29   2   6  10   5   3  15       4
21 |   3   2   7  13   6   5   1   3   4   3   5   5   6   3  11   5
22 |   3   4   2   5   6   3   5   2   3   7   3   5   5   1   2   5
23 |   4  40  11   6   7   6   2   4   4  12   7   4   3   6  12   3
---+----------------------------------------------------------------
   |  16  17  18  19  20  21  22  23  24  25  26  27  28  29  30  31

Notes:
. a normal eta-Aquarids activity comparable to 1998.
. the Es activity could be worse.


     Pierre De Groote

---------------------------------------------------------------------------
Observer: H. W. Kelsey
Location: Conway, Arkansas USA (92 25' W, 35 02' N)
Frequency:  89.5 MHz
Transmitter:  Tulsa OK & Salina/Manhattan KS
Receiver:  Sangean 803A
Antenna:  Yagi      Heading:  SNW
Observing Method:  Recorded on Audio Tape

Underdense/Overdense Scale:
        Overdense: 0.5 second or more duration
        Underdense: less than 0.5 second duration

    Each observed hour is 60 minutes, exactly

May                   Over-     Under-
2001        UT        dense     dense     Total
_______________________________________________
  1     10h00-11h00      9         9        18
  2     11h00-12h00      5         3         8   Major Interference
  3     09h00-10h00      8        12        20     "        "
  4     11h00-12h00      5         8        13     "        "
  5     10h00-11h00     19        37        56   Minor Interference
  6     10h00-11h00     42        60       102
  7     10h00-11h00     44        69       113
  8     10h00-11h00     27        39        66
  9     10h30-11h30     12        25        37
 10     10h00-11h00      7        17        24
 11     10h00-11h00     29        21        50
 12     10h00-11h00      6         9        15   Minor Interference
 13     10h00-11h00     12        13        25
 14     10h00-11h00      2         5         7   Minor Interference
 15     09h00-10h00      9        14        23
 16     09h00-10h00     11        18        29
 17     09h00-10h00      8        15        23
 18     09h30-10h30      5         8        13
 19     09h00-10h00     13        17        30
 20     09h00-10h00      9        17        26
 21     09h00-10h00     30        47        77   Zero Interference
 22     09h00-10h00      7        13        20
 23     09h00-10h00      8        17        25
 24     09h00-10h00      8        11        19
 25     09h00-10h00      9        14        23
 26     09h00-10h00     10        22        32
 27     09h00-10h00      7        18        25
 28     09h00-10h00     23        27        50
 29     09h00-10h00   Lost To Interference   3
 30     09h00-10h00      "  "     "          5
 31     09h00-10h00     11        18        29


      Will Kelsey

---------------------------------------------------------------------------
Observer: Stan Nelson, KB5VL
Location: Roswell, NM 88201 (33 25' 38" N, 104 30'55 W, elev 1100 m)
Receiver: Radio Shack Scanner Wide Band FM 88.7 MHz
Antenna : 6 element FM beam 45 deg az elevated 15 deg above horizon
Observing method: software Meteor Version 4 Threshold set at 5 on 29 Nov 2000
          Data is being uploaded to NASA's Space Weather web hourly
          see: http://www.spaceweather.com/

Antenna: 6 element FM beam geogr 45 deg az (NE) elevated 15 deg above horizon

    |   May 2001
 UT |  1   2   3   4   5   6   7   8   9  10  11  12  13  14  15
 ---+-----------------------------------------------------------
  0h|  9   6  18  12   9  15  11   8  11   6   8   9  12   7   8
  1 | 10   5   5  11  13  68   9   8   5   6  10  10   7  10   7
  2 |  8  13  10  11   7  14   5  21  11   8   7   8  14   6   8
  3 | 13   7  13  16  14  19  15  11   7  18  18  13   5  13  13
  4 | 11  13  14  23  16  23  16  10  13  23  31  11  18  15  21
  5 | 16  15  15  22  19  24  17  18  25  18  17  16  24  16  21
  6 | 24   3  19  29  14  23  17  28  29  23  23  24  31  23  27
  7 | 22  27  29  77  25  30  25  36  21  24  16  22  25  21  24
  8 | 22  43  25  46  24  28  27  28  24  27  22  22  24  26  10
  9 | 41 175  40  38  36  44  40  42  42  38  41  41  40  31  26
 10 | 37 186  46  62  61  41  51  44  47  49  46  37  39  35  41
 11 | 61 186  60  74  59  68  66  58  65  64  50  61  34  46  46
 12 |182 171  62  90  79  82  82  89  86  73  73 182  51  42  44
 13 |178 177  69  94  80  91  97  77 119  57  60 178  38  63  55
 14 |177 180  63  62  86  74  83  74  99 116  59 177  52  44  57
 15 |129  95  77  84  66  58  57  68  75 109  57 129  70  50  49
 16 | 54 119  70  80  71  70  66  71  58 127  49  54 113  41  44
 17 |110  98  49  70  56  64  66  66  55  70  47 110  75  32  41
 18 | 31  40  46  82  40  57  53  43  59  38  35  31  34  40  33
 19 | 28  21  30  60  39  26  28  30  32  48  40  28  23  28  28
 20 | 31  24  27  47  16  29  62  33  26  15  27  31  32  34  16
 21 | 25  30  25  24  26  33  68  27  18  28  21  25  26  27  49
 22 | 13  11  25   9  41  20  12  19  17  20  17  13  17  18  35
 23 |  8  10   6   9  12  10  11   5  11  10  12   8  10  16  16
 ---+-----------------------------------------------------------
 UT |  1   2   3   4   5   6   7   8   9  10  11  12  13  14  15
    |   May 2001

    |   May 2001
 UT | 16  17  18  19  20  21  22  23  24  25  26  27  28  29  30  31
 ---+---------------------------------------------------------------
  0h| 10  21   4  10  12  12   7   8  11   8  59  29      13  31  16
  1 |  9   6  22  70   3  12  11  14   9   3  16  15      12  87   7
  2 | 19   8  80 157   4   8   8  11   8  42  16   9  43   6  93  10
  3 | 31  22  17  53  10  16  19   9  15  11  14  21  18  14  14  13
  4 | 37  22  22  23  17  13  12  14  20  22  10  44  12  21   9  13
  5 |170  21  17  18  13  17  12  12  19  26  20  13  25  14  16  12
  6 | 26  22  17  21  17  28  20  13  25  19  18  20  18  25  13  18
  7 | 31  33  23  20  20  26  22  19  23  29  25  22  25  20  17  20
  8 | 27  24  24  28  19  25  19  16  22  26  26  22  28  22  19  27
  9 | 36  25  31  74  24  27  22  27  26  27  28  21  30  21  53  15
 10 | 34  33  31  33  22  29  29  25  25  27  33  33  35  35      26
 11 | 39  58  31  37  30  51  31  38  35  36  33  38  93  43      25
 12 | 59  50  46  38  39  42  35  45  45  38  40  36  87  48      37
 13 | 58  62  46  33  37  50  44  35  38  49  39  38  46  37      31
 14 | 51  51  51  47  40  51  52  43  50  54  40  50      43  79  40
 15 | 48  34  64  30  40 102  27  16  39  34  43  52      32  69  27
 16 | 40  37  66  32  34  33  35  17  27  42 107  38  53  19  29  24
 17 | 30  35  29  38  27  15  32  20  36  83 107  36  87  31  18  24
 18 | 38  26  29  32  19  25  20  27  29  34 122  38  76   9  13  24
 19 | 22  30  23  24  16  30  19  31  22  27 101  20  17  15  20  29
 20 | 25  28  16  26  28  14  19  19  34  78  56  25  17  17  17  15
 21 | 18  24  14  29  22  24  46  21  18 101  22  37  60  13  90  42
 22 | 19  20  41  29  20  13  36  10  24 117  26  40  63  46  39 101
 23 | 13   7   8  34  10   5  12   5  32  34  25  33  19  60   7  63
 ---+---------------------------------------------------------------
 UT | 16  17  18  19  20  21  22  23  24  25  26  27  28  29  30  31
    |   May 2001


Antenna: 6 element FM beam geogr 270 deg az (W) elevated 15 deg above horizon

    |   May 2001
 UT |  1   2   3   4   5   6   7   8   9  10  11  12  13  14  15
 ---+-----------------------------------------------------------
  0h|  8   9   ?  18  12   ?   7  12   9  14  17  27  12  17  21
  1 | 10   4   ?   6   9   ?   7  15  11  12  17  56  15  13  15
  2 | 11  11   ?  10   6  17   5   9   6  11   5  17   9  13   8
  3 | 14   3   ?   4   6   6   9   8  10   9  15  24   7  17  10
  4 | 11   9   ?  14  10   5  14   8  15  14  15  10  10   9  12
  5 |  7   4   ?   9  13   7   9  12  11  10  12   8   8   6  12
  6 |  9   6   ?  17  12  11  11  10  19  16  14   9  11  11   9
  7 | 13   2   ?  27  10  10   8  19   8  21   8  13   9   9  13
  8 |  7   7   ?  12  11   7  15  10   8   9   3   9   7   8  13
  9 |  5   5   ?  11  10  11   9  13   6   9   4   6  13  11  11
 10 |  7  14   ?  16   8  14   8   7   7   9  15  11  11  12  10
 11 | 14       ?  13  13  11  13   9  10   7  12  10  12  10  20
 12 | 28       ?  11  10  13  21   9  14   6   6  12  13   8   4
 13 | 19       ?  11   7  10   7  13  17  17   9   8  12   8  18
 14 |          ?   9   5  15   9  11  95  13  10   7  10  13  13
 15 | 26       ?   6  16   8   5  16   7   9  10  14  13  11   8
 16 |  7   7   ?  18  13  10   7   8  10  31  14   9  30  15  14
 17 |  7   7   ?  12   8  10  13  17  13  17   5  16  16   7  10
 18 |  9   8   ?  19   8  14   6   9  13   7   7  16   9   8  15
 19 | 29   3   ?  12  10   5   8   9  13   8  14  16  12   9   8
 20 |  7   8   ?  18  10  12  10  16   6  14  15  14  13  10  16
 21 | 11   8   0  14  61   6   8   8   7  12   9  18  12  11  14
 22 |  9   6  17  13   0  10   9   6  10  12  14   5  10  11  13
 23 |  7  10  12  12   ?  10  15  11  12   7   3   7  12  12  13
 ---+-----------------------------------------------------------
 UT |  1   2   3   4   5   6   7   8   9  10  11  12  13  14  15
    |   May 2001

    |   May 2001
 UT | 16  17  18  19  20  21  22  23  24  25  26  27  28  29  30  31
 ---+---------------------------------------------------------------
  0h| 12   6  17   8  12  12  16  19  16  11   9  15  16  13   7  11
  1 | 16   9   7  12  13   5   9  13  13   9  15  13  19  10  21  13
  2 | 16   4  14  16   9  15  12  14  15  12  11  11  13   9  13   6
  3 | 10  10   9  10  17  16  15  14  12  13   4  10  13  13  11   6
  4 | 11  15  11   7  13  12   9  17   7  14  13   8   9  14  11   8
  5 | 10   7   8  12  16  12  13  13  15  21  12  18   9   8  11   9
  6 | 19  10  11  14  13  14  20  11  12  13  11  21  13  13   6  18
  7 | 15  11  10  14  14   6  17  10  17  11   9  14  11  14      13
  8 | 11  15   9  11  11  18  11  16  19  14  11  13   9  13      12
  9 | 12   8   5  11   9   7  14  17  15   9  15  15  16  12      13
 10 |  6  15  19  26  15  12  13  13   9  13  13  11  37  27      14
 11 | 18   6   9  15  13  14  14  12  13  15   8  17      11      16
 12 | 12  14  13  13  18  15  15  10  12  12  12  21      13      12
 13 | 12  18   6  14  12  20   7  21   9  11  12  24   8  11      14
 14 | 11  24   9  13  13  18  17  15  13  10  16  22  16  19      18
 15 | 14  10  11  12  16   7  20  10  15  16  13  14  76  12   7  12
 16 |  9  29   9  12  14  16   9  13  15  14      13      16  19  11
 17 | 12  11  12  15  10  11   7  17  20  11      11  50  10   8  15
 18 | 10  20   9  19   9  10  24  11   7  10  39  11  15  13  11  12
 19 | 13  11  15   9  13  12  19  18  15  17  21  14  18  10   4  19
 20 | 18  13  10  21  11   9   8  11  10  13  14  16  12  12   8  14
 21 |  5  11  17  17  14  18  15  15  17  14  11  12  12  17  12  14
 22 |  9   6  11  14   9  13  14  13  17  13  15  14   9  10   9  21
 23 | 10   9   9  13  14  10   8  12  10  11  19  13  14  14  11   9
 ---+---------------------------------------------------------------
 UT | 16  17  18  19  20  21  22  23  24  25  26  27  28  29  30  31
    |   May 2001

Note:
.  ? probably power failure


      Stan Nelson

---------------------------------------------------------------------------
Observer:  Hiroshi Ogawa
Location:  Misato Observatory (Wakayama-pref. Japan) 135.40 E, 34.13 N
Frequency: 53.750 MHz.
Transmitter Location: Fukui-NCT at Sabae city (136.2 E, 35.9 N)
            HAM beacon (JA9YDB) for RMO (50 W CW, 53.7500 MHz)
            by JA9BOH Kimio Maegawa. No modulation except for identification
Antenna:   original dipole (height: 1 m, to level, element: west-east)
Receiver:  AOR AR8000 USB-Mode
Observing method: HROFFT software (by K. Okawa)
Counting method:  manual count (using HROview software by M. Yamamoto)


                       Total number of echoes

May|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST
May|15 16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 UT
---+--------------------------------------------------------------------------
  1|IF IF IF@16 21 14 23 21 17 17 15 16 11 12 10 14  6  3  4  9 14 11 12 IF
  2|IF IF 17 17 20 28 24 26 24 22 12 14 11 12 10 11 10  4  6 11 IF IF 14 IF
  3|IF IF IF 25 23 30 30 23 28 23 12 15 17 12 14  7  2  3  1  4  3  3  8@21
  4@19 16 19 27 25 25 35 29 22 22 22 18  6 18 10 10  8 11  4  4  8  5 13  9
  5|IF@16 18 27 18 35 30 35 32 31 29 30 18 -- -- --  4 Es @8 @3 12  6 17 11
  6|21 16 12 24 18 29 25 27 22 24 10 14  8@13  4  8  6  2  4  6 IF IF IF IF
  7|IF IF 18 23 31 25 30 22 23 25 19 14 12 12 21 19  8  6  8  7  9  8 11 17
  8|13 21 18 21 22 33 35 31 18 22 19 12 13 11 10@16 IF IF IF IF  6@12@10 10
  9@10 IF 18 15 16 24 27 22 19 19 12 12 12 10 10 12 @2 IF IF @2  9 @6  4 11
 10|12 IF@11 19 23 18 25 27 22 20 21 14  9 12 18  7  4 10  4  3  7  6 13 16
 11|12 14 18 20 26 25 29 30@24 IF@14@13 @8  8 11@14 IF IF @3 @7  9 14 19 10
 12|17  9 16 21 24 33 18 22 25 26 21 21 13 17 19@21 IF@10  6 IF  4 @8 IF IF
 13@15 IF@16 22 28 24 27 27@14 Es Es@16 16 12 17@12 @6 IF IF @3  8@12 IF 13
 14|10 13 19 22 18 32 37 23 30 20@21@14 IF 20 18 28 14 13 11 @3 @8  9 15 17
 15|16 23 20 22 18 20 29 22 27 26 27 12 16 14 15 15  9  9  5  6  9 10 21 16
 16|17 16 18 22 19 17 20 29 20 23 19 10 @6 13 15@12 @6 Es Es  9  9 11 11 20
 17|15 13 11 18 20 25 28 28 24 15 11 15 12 17  9 14  3  7  6  5  5  8 10 18
 18|15 21 18 19 22 26 19 19 17 13 15  9 12 15 13 18 13  6  5 11 @6 IF 13 11
 19|16 16 23 28 19 16 32 28 23 13 10  6  6 12 10 12 IF  7  9 IF  7  8 IF IF
 20|IF IF 19 21 19 21 26 27 20 20 11  7 10 17 10 18 11  3  4  5  9 12 14 12
 21|15 14 16 15 20 19 35@25 Es @6@18 10 14 15 14 12  9  6  5  8 12 12  5 21
 22|16 20 19 25 22 23 27 27 17 15 12 16  9 11 14 12 11  9  5  4  6  7 14 14
 23|14 13 11 23 18 27 22 15 14 18 10 10 14 12 10 12 11  7  4  6  7  9 14 11
 24|14 14 24 15 22 24 22 23 11 19 14  6  8 16 16 12 IF@13  9  7  6  9 10 12
 25|16 15 14 15 19 17 21 21 23 10  5 10 13 13  5 14 IF  5  6  8  7 13 12 14
 26|15 21 15 20 16 22 28 20 23 23 13 11 14 10 11 12 12 IF IF IF @8  8 15 15
 27|18 16 21 12 14 19@27 17 18  9 IF IF IF 20 18  5  9  6  4  4  4  6 16 19
 28|19 17 17 15 18 23 23 24 14 14  9  7 12  8  7  9 12  8 12  9  5  9 12 16
 29|17 16 16 20 23 29 27 21 18@14@18  8  9 14 12 Es Es  6  9  9  9 13 18 17
 30|11 16 23 20 22 30 31 27 24 23 16  9@13 16 20 12 Es @8  8  9  7  9@17 14
 31|24 16 24 27 29 20 22 23 16 21 12 12 12 17 16 15  7  7  7  8 10  9 18 17
---+--------------------------------------------------------------------------
May|15 16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14
UT 
May|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST


                      Echoes longer than 20 seconds

May|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST
May|15 16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 UT
---+--------------------------------------------------------------------------
  1|                1
  2|                            1
  3|             1     1  1  1  2
  4|                1  1  1
  5|                   1  3  1  1  1
  6|                   1  1           1
  7|       1        1  1     1     1  1
  8|          1  4  2
  9|                2  2  1  3     2
 10|          2        1        1  1
 11|                   2  1
 12|                2        1  1        1
 13|                1     1  1
 14|                      1        1
 15|                      1     1     1
 16|       1  1                    1
 17|                                  1  1
 18| 1
 19|
 20|             1     1           1
 21|                1
 22|
 23| 1
 24|                   1        1
 25|             1
 26|          1
 27|       1
 28|          1
 29|                2  1     1                             1
 30|    1  1
 31|                   1
---+------------------------------------------------------------------------
---
May| 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22
23JST
May| 15 16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13
14 UT

Notes:
 --: lost counts because of high noise level or machine failure.
  @: Hourly rate estimated by effective observation time less than 60 min.
 IF: Contamination due to radio noise or interference
 Es: Contamination due to sporadic E opening
 LT = JST = UT + 9 h


      Hiroshi Ogawa

---------------------------------------------------------------------------
Observer:      Sadao Okamoto
Location:      Damine Meteor Observatory, Japan (137.53 E, 35.07 N)
Transmitter:   HAM beacon (JA9YDB) for RMO  (50 W CW, 53.7500 MHz) by
               JA9BOH Kimio Maegawa. No modulation except for identification.
    Antenna:   2 element Cross Yagi 4 dBi aiming to Zenith. Omni-directional
               in azimuth and elevation above 15 deg elevation.
   Location:   Fukui-NCT at Sabae city (136.2 E, 35.9 N)
               At present time about 10 observers are listing for
               Kimio Maegawa's 53.75 MHz beacon.
Receiver:      IC575
Antenna:       2 element Yagi, pointed to the zenith.
Observing method: FFTDSP software, manual count.


                   Hourly echoes over 10 dB SNR
2001
May|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 LT
May|15 16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 UT
---+--------------------------------------------------------------------------
 1 | e 22 22 37 55 58 41 48@25 16  8 10 36 43 22 12 10  9  4 10 17 17 43 45
 2 |27 31 26 33 47 54 55 59@51 41 24 21 22 35 27 28@18  7  7  7 10  e 18  e
 3 | e  n@42 32 45 48 61 48@54 41 33@26 42 39 29 12 13 11  7  7 13 18 12  e
 4 | e 25 35 43 42 48 69 54@34 27@33 16 21  8 15 15 10  8  9  5 11 18 17 27
 5 |38 49 37 46 56 65 56 62@15 25 19 11 29 14 25 16 12  e 16  8 12 11 19 28
 6 |42 38 28 41 51 53 49 33@24 13 11  6 @9 @6 13  8 15  4  6 10 12 18 22 33
 7 |33 27 33 49 51 70 71 57@51 45 33@32 40 40@20 22  e@10  e 14 22 25 26 43
 8 |36 27 40 45 63 61 57 61@32 35 26 52 41 54 38 18  n  e  e  e  e 17 29 31
 9 |32 29 37 51 42 59 69 56@61 52 35 35 32 25 12  8  2 10 @9  8 11 15 29 44
10 |34 42 46 50 61 60@30 15@23  n 16  6  7 10 12  3  8  7  5  1  7  5 13 22
11 |19 32 36 41 45 52 43 37  n  n  n  n  n  n  n  n  n  e  4  8 10 14 16 20
12 |36 40 45 43 45 54 31 33@17  n --  7  8 16 22 13  n  8 @9 13 11 31 18 40
13 |40  n 52 49 53 56@64@56@27@12  e 10 16 18  6  7  1  e  e  8 16 22 24 46
14 |43 47 35 39 52 45 59 66@43 17  n 11 16 24  8 12 18 10  9 12  8 29 35 49
15 |32 48 42 44 49 52 49 42@43 31 13 21 18 17 26 12  8  8  4  9 14 22 43 39
16 |38 48 43 47 41 43 54 67@48 26 17 15  8  7 11  3  8  7  4  6  4  5 21 14
17 | n  n  n  n  n  n  n  n  n  n  n 32 28 22 25 17  9 10 12  5 11 26 30 42
18 |43 47 42 53 52 63 46 57@22  8 14 14 19 15 16 22 17  e  e  6 12 12 31 38
19 |47 54 44 45 56 53 55 72@52 39 33 26 18 17 11  e  e 10  5 10 13 16 36 34
20 |36 36 28 34 54 55 59 34 -- 10  3  4  5  8  2  6  5  3  4  7 12 14 27 43
21 |32 37 49 23 42 53 39 46@36 50 41  e@21  e 26 18  n@13  9 10  7 19 25 28
22 |28 34 32 30 46 50 36 41@51 25 17 34 23 32 27 19 17  7 12  7  8 12 25 32
23 |29 34 29 34 26 37  e  e@33 31 15 31 28 31 28 31 19  5 10  4 12 12 25 22
24 |40 46 34 35 32 48 38 62 28 28 20 24  22 25 18 8  6  9  4  5 12 11 30 27
25 |34 35 37 43 49 25 41 44@22 20 10 25 22 16 13 @9 @7  6 10 10 18 14 29 37
26 |29 41 55 25 39 64 45 44 37 19 21 32 23 16 15 16
---+------------------------------------------------------------------------
-- 
May|15 16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14
UT 
May|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23
LT 
2001

                   Echoes with duration > 5 s
2001
May|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 LT
May|15 16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 UT
---+--------------------------------------------------------------------------
  1|    1  2  2  3  6  3  6  1  2  1  2  4                                2
  2| 1  1  2  4  2  4  3  2  5  2  3  1     4     1
  3|          3  3  6  8  5  5  7  4  1  2
  4|    1  4  4  3  6  7 10  2  6  2  2  2                    1     1
  5| 1  1  3  6  2  4  8 12  1  3  4  2  2        1        2
  6| 3     1  5 11  6  4  2  2  4  1  2        2  1  1     1
  7| 1  3  3  3  3  8  5  6  4  7  2  4  3  1
  8| 4  1     2  7 12  8  7  4  3  5  6  1  3  1                          2
  9|    1  1  3  6  5 10  6  5  9  2     3                       1        3
 10| 1  3  5  6  6 10  4  1  1     5     1        1              1        1
 11|    1  1  4  5  7  2  7                                               1
 12| 1  2     3  4  5  5  4                    2  1
 13| 2     7  5  5     1  6  3  1        1                             1  4
 14|    1  1  2  3  4  8  3  4  1              1     1              1     2
 15| 2  2  2  4  3  3  6  4  3  2     3  2     2  1                       3
 16|    1  2  5  2  4  1  8  2     1  1  1
 17|                                  1  1     1             1            2
 18| 3     2  2  3  3  2  6  3     1  1  2  1     1                    2  1
 19| 3  5  6  2  8     6  4  2  4  3  2  2  1           1  1           1  1
 20|    2  3  1  4  9  4  3     1  1  1     1                          1  1
 21| 2     2  1  2  1  2  2  2  1  1                                   1
 22| 1  4  3  4  3  3  3  5  2  3  2  3  4        1  1        1        1
 23| 3  1  2  6  1  4        1  2  1  1  3  2           1  1           1  1
 24| 2  3  2  4  1  1  2  2  3  2  1  2     2                 1        1  1
 25|       3  3  5  2  1  2     3        1  1  2                       1
 26|       1  4     3     3  1  1  1  4  3  1  3  1
---+------------------------------------------------------------------------
-- 
May|15 16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14
UT 
May|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23
LT 
2001

            Daily rate of long echoes (T > 20 s)
2001
May    1   2   3   4   5   6   7   8   9  10  11  12  13  14  15
----------------------------------------------------------------
Count  2   1   8   8   8   5   4   7  10   8   4   1   1   2   1

2001
May   16  17  18  19  20  21  22  23  24  25  26
-------------------------------------------------
Count  4   2   0   1   0   2   0   0   4   3  (3)


Notes:
  -: lost counts because of high noise level or machine failure.
  @: Hourly rate estimated by effective observation time less than 60 min.
  n: Contamination due to radio noise or interference
  e: Contamination due to sporadic E opening
  f: No data available due to TX or RX failure
  LT = JST = UT + 9 h


      Sadao Okamoto

---------------------------------------------------------------------------
Observer:    Ton Schoenmaker
Location:    Roden, Netherlands (06 26' E, 53 08' N)
Frequency:   55.275 MHz
Transmitter: Spanish TV channel E3 (video); transmitters in La Muela (30 kW),
             Gamoniteiro (50 kW) and Aitana (60 kW); all stations within
             100 Hz of nominal frequency; distance ~1500 km
Antenna:     3-elements horizontal Cushcraft 50 MHz Yagi tuned to 55.3 MHz;
             geographical azimuth 210 degrees (SW)
Receiver:    Yupiteru MVT-9000 in USB mode; sensitivity 0.5 uV at 12 dB S/N
Observing:   800 Hz audio signal from ear-phone socket was rectified,
             digitised and fed into a PC via the parallel computer port.
             HP VEE was used to process the digitised signal and to store
             15-minutes counts of reflections stronger than 0.22 uV
             (-120 dBm). Also for all individual meteors date, time,
             duration (dead time) and maximum signal are stored.

Uncorrected hourly counts for signals stronger than 0.22 uV starting at:

    |              May 2001
 UT |  25    26    27    28    29    30    31
----+----------------------------------------
  0h|   -   265   221   221     #   205   183
  1h|   -   281   238   239     #   225   250
  2h|   -   349   287   263   247   321   310
  3h|   -   277   299   263   214   282   318
  4h|   -   260   274   305   277   291     -
  5h|   -   380   339   334   369   351     -
  6h|   -   356   322   336   344   326     -
  7h|   -   365   404   320   392   328     -
  8h|   -   341     *   364   348   365     -
  9h|   -   303     *   291   304   298     -
 10h|   -   202     *     *   192   204     -
 11h|   -   248     *     *   170   188     -
 12h|   -   248     *     #   183   185     -
 13h|   -   264   273     #     *   228     -
 14h|   -   267   298     #     *   278     -
 15h|   -   238   244     #     *   231     -
 16h|   -     *   193     #     *   146     -
 17h|   -     *   127     #     *    95     -
 18h|   -     *    65     #     *    82     -
 19h|   -    71     *     #     *    66     -
 20h|  64    82     *     #     *    73     -
 21h|   *    91     *     #    88   113     -
 22h|   *   134   157     #   148   144     -
 23h| 197   164   135     #   163   193     -
----+----------------------------------------
 UT |  25    26    27    28    29    30    31
    |              May 2001

Notes:
* affected by direct reception due to tropospheric or ionospheric propagation
# local interference
- no observations


      Ton Schoenmaker

---------------------------------------------------------------------------
Observer:    Dave Swan
Location:    Christchurch UK (50.47 N 1.44 W)
Receiver:    Pro 2006 (modified to give a carrier detected
             output for Chessell  301 pen recorder).
             Detected signal level > -123 dBm
Antenna:     5 element Yagi Gain 7.5 dBd.
             Azimuth 170 deg elevation 10 deg.
Frequency:   55.25 MHz
Transmitter: Spanish TV channel E3 (video); transmitters in La Muela (35 kW),
             Gamoniteiro (50 kW) and Aitana (60 kW); distance ~ 1000 km
Computer:    AST 486 Notebook with Meteor v 4.0 software


    |   May 2001
 UT |  1   2   3   4   5   6   7   8   9  10  11  12  13  14  15
 ---+-----------------------------------------------------------
  0h| 37  20  23  17  12  15  21  15  24  14  17  23  17  11  20
  1 | 15  30  10  13   7  14  29  12  21  19  31  28  17  21  10
  2 | 19  22  32  32  17  17  34  20  31  27  33  21  15  30  16
  3 | 46  25  40  49  34  46  25  43  32  42  20  20  20  34  20
  4 | 44  31  31  35  72  58  74  46  37  50  16  45  31  17  26
  5 | 31  36  35  47  61  59  68  47  38  38  16  53  37  49  24
  6 | 43  29  43  51  58  72  52  76  21  38  37  51  36  35  26
  7 | 55  32  41  86  44  51  58  75  53  55  41  39  49  39  19
  8 | 38  48  22  71  36  25  49  67  68  29  47  28  29  45  41
  9 | 31  46  32  85  40  44  42  42  41  42  47  31  29  31  29
 10 | 46  35  39  64  45  23  34  45  53  48  51  32  47  25  22
 11 | 37  41  42  59  49  15  28  38  51  32  24  39  14  22  40
 12 | 36  24  36  29  21  20  48  42  41  17  27  24  26  29  25
 13 | 29  18  14  45  29  13  10  34  33  26  13  19   8  15  23
 14 | 23  18   5  23  10  39  16  23  14  45  32  35  20  24  16
 15 | 15  31  10  27  14 103  29  15  22  41  22  16  31   7  38
 16 | 15  19  10  16  11  54  17  28  28  23  16  10  19  18  40
 17 | 17  12   9   6  10   7  10  12  18  19  11   9   7  12  19
 18 | 12  16   6  15  12   9  11   3   8  11  16   6   6   3   8
 19 | 11  14  10   5   4   4   3   2   4   7  12  11   4  10   6
 20 |  7   9   3   5  10   2  13   5   5   6  16   9   2   7   5
 21 | 14  13  11   8  15   9  12   8  19   7  16   9   5  10  10
 22 | 12  21  11  16  28  16  10  26  25  21  21  10   9  11  11
 23 | 11  33  21  12  19  14  12  25  21  20  23  19  15   8   7
 ---+-----------------------------------------------------------
 UT |  1   2   3   4   5   6   7   8   9  10  11  12  13  14  15
    |   May 2001

    |   May 2001
 UT | 16  17  18  19  20  21  22  23  24  25  26  27  28  29  30  31
 ---+---------------------------------------------------------------
  0h|  6  22   7  10  30   6  11  15  27  22  22   6  14  17  18  24
  1 |  4  17   8  12  24  10  26  11  11  18  17  12  22  27  27  38
  2 |  7  20  11  25  23  16  26  19   4  13  33   4  20  34  22  30
  3 |  8  24  18  17  19  23  36  18  23   5  27  14   4  34  24  23
  4 | 15  27  12  16  36  23  24  24  22  21  26  25  23  36  14  10
  5 | 29  32  22  17  52   8  22  45  28  48  37  36  56  30  32  17
  6 | 24  18  13  11  45  40  30  33  27  56  40  38  51  26  35  35
  7 | 22  24  14  12  54  35  18  40  43  66  39  48  45  25  38  45
  8 | 46  16  28  15  22  37  21  27  36  51   8  29  54  26  55  31
  9 | 34  24  18  30  11  37  37  12  19  37  13  44  43  20  18  27
 10 | 39  30  20  29  30 120? 30  41  21  51  22  48  88  31  41  77
 11 | 34  28  17  21  51  22  17  35  86  52  25 118?120? 33  25 126?
 12 | 33  19  10  30  55  14  23 109  22  31  16  83  50  15  23 120?
 13 | 21   9  21  62  30  11  23  92  31  19  26  15  16  65  28 237?
 14 | 22  23  10  44  28  30  22  50 140? 43  24  26  24  50  18  30
 15 |  5  21   6  30  26  24  13  24  57  28  24  15  24  32  40  52
 16 | 13  10  10  20  30  19  10  61  30  44  11  11  12  33  27  19
 17 | 11   9  14  17  13  12  13  60  29  16   9  44  12  78  17  36
 18 |  8   6  12  17   4  15   6 123? 12  15   5  31  19  45   7  19
 19 |  6  13   2   9   2   9   3  96   8  20   2   2   9  12  15  18
 20 | 12   8   2   2   8   7   9  65   6  28   7  11   9  11  11  10
 21 |  5   9   7  12  12  11   9  26   7  10  13   4  10  11   6   9
 22 |  5   9   7  12  15  23  10  17   3  16  13 101  16  21  20   9
 23 |  9   8   3  16  15  21  18  16  16  20   6  15  23  19  14  18
 ---+---------------------------------------------------------------
 UT | 16  17  18  19  20  21  22  23  24  25  26  27  28  29  30  31
    |   May 2001

Note:
  ?  probably affected by Es


      Dave Swan

---------------------------------------------------------------------------
Observer:    Pierre Terrier
Location:    Canet, France  (3 36'E, 43 41' N)
Frequencies: 93.7 MHz (changed since previous report)
Antenna:     6-element Yagi FM, horizontal polar.
             azimuth 0 deg (N-S), elevation 90 deg. (zenith)
Pre-amplifier: home made, gain 15 dB, Nf < 2 dB
Receiver:    Tuner FM Continental Edison digital synthesiser TU 9945
Observing method: Electronic interface on LINE output audio signal are fed in
             COM1: of  PC Pentium 75 MHZ.
             WMeteor v 1.0 (Windows) processes the signal and records on
             hard disk the time of the events.
             WMeteor parameters: THRESHOLD = 14
             COLORGRAMME v 2.2 working with WMeteor to display the visual
             graphic data per hour and generates RMOB bulletin
             automatically

    |   May 2001
 UT |  1   2   3   4   5   6   7   8   9  10  11  12  13  14  15
 ---+-----------------------------------------------------------
  0h| 19  12  11  23   7  20  16  25  11  18  19  14   7  24  26
  1 | 26  27  20  22  14  15  22  17  17  17  22   7  14  21  25
  2 | 22  17  24  23  18  21  21  23  24  23  22  24  17  23  27
  3 | 23  23  29  36  21  24  22  35  18  22  29  23  16  31  35
  4 | 31  24  36  53  30  39  21  36  39  28  34  28  31  33  29
  5 | 28  29  45  56  33  44  40  49  36  52  40  31  25  29  35
  6 | 29  38  40  54  52  47  44  54  36  27  44  41  41  35  34
  7 | 34  43  53  65  44  54  50  60  56  59  43  35  35  33  38
  8 | 34  39  49  61  34  55  59  60  49  56  32  43  32  31  36
  9 | 38  39  48  41  46  46  44  44  54  54  24  30  28  38  25
 10 | 34  32  47  42  35  43  34  46  50  39  38  37  30  15  27
 11 | 20  35  32  23  28  26  46  40  32  34  34  26  33  23  21
 12 | 19  23  36  39  27  26  29  26  32  24  22  35  25  23  23
 13 | 25  27  29  25  17  24  29  29  24  22  20  25  26  25  25
 14 | 19  15  29  20  24  20  15  18  20  25  41  15  28  17  18
 15 | 17  19  27  15  21  14  20  22  21  28  23  27  24  11  16
 16 | 15  12  11  17  17  14  10  19  11  13  17  13  14  13  16
 17 | 11   6  10   7   8  12   8  15  12   9   9   7  15   7   9
 18 |  7   3   6   9   7   9   5  21   8   9  11  10   5   7   8
 19 |  6   6   9   5   7   6   9  31   5   8   7   5  11   7   5
 20 |  9   6  13   4   5   7   6  16  10   8  10   1  12   8   4
 21 |  7  10  15   4  14   5  12  15  11   5   5   6   8  10  11
 22 | 11  14  14   8  11  12   8  17   6  11  13   8  15  13  14
 23 | 13  13  15  14  11  19  17  20  13  16  17  10  20  21  14
 ---+-----------------------------------------------------------
 UT |  1   2   3   4   5   6   7   8   9  10  11  12  13  14  15
    |   May 2001

    |   May 2001
 UT | 16  17  18  19  20  21  22  23  24  25  26  27  28  29  30  31
 ---+---------------------------------------------------------------
  0h| 18  30  16  18  14  25  12  19  10  14  23  12  11  17   3   4
  1 | 24  28  19  18  19  24  30  14  25  15  20  16  23  24   7  11
  2 | 17  27  29  25  19  18  21  19  22  20  19  20  16  19   6  10
  3 | 21  20  28  32  30  17  14  21  19  21  18  13  17  13   8   8
  4 | 16  25  23  24  33  21  31  21  17  26  21  20  24  21   9  10
  5 | 37  39  31  23  21  22  29  22  28  19  30  23  24  23   8  12
  6 | 37  34  28  34  30  20  19  30  32  21  24  18  16  21   9  11
  7 | 36  37  35  33  25  23  20  28  23  13  28  20  27  34  13  19
  8 | 40  32  32  34  32  32  28  31  26  10  20  24  32  24  14  22
  9 | 34  38  34  32  37  33  21  28  24   9  15  19  32  26  11  14
 10 | 27  30  25  32  18  18  24  28  25  10  16  22  23  25   8   8
 11 | 25  17  17  24  14  22  22  19  17  13  17  10  20   8  11   5
 12 | 20  48  16  20  15  16  19  22  13  10  13  12  19  11  14   8
 13 | 21  11  16  23   8  25  11   9  13  23  17  13  19  11  15   9
 14 | 19  16  27  21  13  21  20  15  17  24  19  12  11   7   9  13
 15 | 21  15  20  30  13  12  17  10   8  12   9  12  19  38   9  18
 16 | 35  12  16  16  15  13  16   7  10  55   8  19  13  53   5  15
 17 | 14   5  12  16   7  27  22   5  10  15   3  13  10  33   9  11
 18 |  5  14  11  15   4  11   8   3   7   6   5   9   8   8   1   7
 19 |  5   5   8   6   2   4   3   8  10   7   4   8  11   6   3   2
 20 |  4   7   8   8   2   8   7   6   8   5   4   9   8   3   4   3
 21 | 10   8   5  11  11   4  12  12  11   9   2  10  13   8   8  14
 22 | 17  14  16  11  13  17  14  12  13  12   9   8  12   7  10  11
 23 | 13  19  15  16  20  21  15  19  12  10  21  21  11   7   2  12
 ---+---------------------------------------------------------------
 UT | 16  17  18  19  20  21  22  23  24  25  26  27  28  29  30  31
    |   May 2001

Notes:
. data are not corrected for Sporadic E.
. eta Aquarids activity at the beginning of the month.
. the "peaks" in the afternoon at the end of the month are due to
  thunderstorms.


      Pierre Terrier

---------------------------------------------------------------------------
Observer:    Garfield Tsao (BM2EQB)
Location:    LonTan Observatory
             LonTan, TauYan, Taiwan R.O.C. (121 14'37" E, 24 52'54" N by GPS)
Frequency:   50.0174 MHz USB mode 3 kHz width.
Antenna:     Comet made 50 MHz Yagi HB 4 element (gain 10.3 dBi)
             astronomical azimuth 225 deg (=NE), elevation 7 deg.
Transmitter: MIYAZAKI University Japan, USB mode, 50 W (24 hours),
             distance about 1125 km from Lon Tan.
Receiver:    AOR AR-5000 all band receiver
Sensitivity: 0.25 uV for 10 dB S/N  for USB mode
Observing method: the beacon 900 Hz voice signal (by FFTDSP) is
             received by a low frequency filter (900 Hz)and fed into
             the D/A converter and computer in real time.
Data sampling system: using an 8 bits A/D card to PC/AT and Qbasic program
             with 1/8 second sampling interval to store the> 1.0 s
reflections.


2001|00h01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23LT
May |16h17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15UT
----+-------------------------------------------------------------------------
  5 | -  -  -  -  -  -  -  -  -  -  -  -  - Es  6  7  6  4  5  7 12 Es Es 28
  6 |35 18 24 45 71 78 62 82 30 18 17 13 12 17  8  -  -  -  -  -  -  -  -  -

 12 | -  -  -  -  -  -  -  -  -  -  -  -  - Es Es 10 15 In In 10  8  9  6 In
 13 |In 15 13 16 12 13 14 35 32 24 15  9 11  8  8  -  -  -  -  -  -  -  -  -

 19 | -  -  -  -  -  -  -  -  -  -  -  -  -  - 12 19 16 19 In In Es Es Es Es
 20 |23 Es Es Es 72 60 68 Es Es 12 14  7 14 12 10  -  -  -  -  -  -  -  -  -

 26 | -  -  -  -  -  -  -  -  -  -  -  -  -  - 20 11 Es Es Es Es Es Es Es 18
 27 |22 19 26 41 37 41 56 61 Es Es Es Es Es  -  -  -  -  -  -  -  -  -  -  -
----+-----------------------------------------------------------------------
-- 
May |16h17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14
15UT 
2001|00h01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23LT


Notes:
.   eta Aquarids activity on May 5-6
.  "In" (local) artificial interference.
.  "Es" = sporadic E layer mode of reflection.
    Es was very strong during May and affected the meteor counts.


       Garfield Tsao

---------------------------------------------------------------------------
Observer:  Ilkka Yrjl
Location:  Finland  (26 35' E, 60 54' N)
Frequency: 88.7 + 107.9 MHz
Receivers: Digital car radios with narrow band FM IF units (B=15 kHz) and
           FET RF-preamplifiers, detected signal level >-131 dBm.
           FM detection, no pulse noise rejection required.
Antennas:  3-el. Yagis, G=5 dBd to SW, azimuth 45 deg (SW), polarisation H.
Data sampling system: squelch threshold triggering, sampling rate 32 ms.
            Computer logs total hourly elapsed reflection time, number of
            triggers for the hour, the longest time the signal was
            continuously above detection level for the hour.

            Data on major showers available in the Compact MS-Soft format.
            New versions and revised documents available, please replace
            old MS-Soft versions.
            * Documents for MS-Soft 5.1. Zipped ~2.5 MB
            * MS-Soft v5.1 for Ham Radio MS, VGA only. Zipped ~0.4 MB
            * MS-Soft v4.4 runs on EGA/CGA/Text. Zipped ~0.45 MB
            * VM-Soft v4.4 for visual meteor work. Zipped ~0.37 MB


              eta Aquarids 2001

    UT  |  3 May   4 May   5 May   6 May
    ----+-------------------------------
     0  |    291     274     329     277
     1  |    372     304     344     367
     2  |    391     372     391     401
     3  |    350     352     492     458
     4  |    412     395     509     553
     5  |    428     458     479     521
     6  |    401     477     494     496
     7  |    467     460     447     507
     8  |    390     460     405     390
     9  |    412     391     295     323
    10  |    312     344     317     291
    11  |    205     272     258     268
    12  |    270     333     239     224
    13  |    241     336     228     219
    14  |    184     236     198     158
    15  |    148     137      89     141
    16  |    106     141      86      76
    17  |     86      78      59      74
    18  |     76      87      59      76
    19  |     76      72      86      80
    20  |    112     131     120     106
    21  |    169     181     203     156
    22  |    243     226     196     179
    23  |    258     253     257     234
    ----+-------------------------------
    UT  |  3 May   4 May   5 May   6 May


      Ilkka Yrjl


2. ANNOUNCEMENTS

2.1 Printed circuit board for Meteor

The PCB for Meteor is available now on the "electronics" page of

        http://page.to/meteor/

This file should be used with WinCircuit 2000 (link on the same page)


     Pierre Terrier


2.2 More interesting forward scatter transmitters closing down

"From the TV DX weblist I received the worrying messages about the closing of
Spanish TV stations in band I (channels 2 up to 4) and band III (channels 5
to 12). It seems they are moving to band IV (channels 21 to 81). In any case
it means that "my" transmitters will not be there any longer in a short time
from now. Other comments indicate that all EBU (European Broadcasting Union)
members have to make the switch to band IV, amongst others for digital TV
which is on the horizon.

It also seems that the OIRT (East European FM) de-population continues:

  http://www.fmdx.com/ : The future of the "OIRT" FM band in Eastern Europe.

Aron Ballo wrote in the Czech "DX-Revue" (May 2000): "It has been decided that
all stations still utilizing the OIRT FM band *65 MHz to 73 MHz* will have to
switch to the CCIR FM band (87.5 MHz to 108 MHz) by year-end 2001."  But the
"OIRT" FM band is being phased out not only in Europe, but now also in the
more distant successor states of the former USSR."


      Ton Schoenmaker


3. ABOUT THE RMOB

The RMOB is an independent initiative of some workers in the field of radio
meteor scatter observations and data reduction. It started in August 1993 in
order to spread rapidly the Perseid results via E-mail. Since then, it has
appeared monthly, and it has gradually been expanded. In regularly publishing
summaries of observations, potential radio observers are kept up to date of
existing installations, possibilities and limitations of radio meteor
observations. In the long run, there should be sufficient observing stations
to cover the whole globe, allowing to detect stream outbursts which may
remain unnoticed visually.

RMOB contains typically: summaries of recent observations, equipment data,
first results of stream activity by radio methods, relations between radio
and optical meteors, references to other publications in the field of meteor
astronomy and radio scatter techniques, announcements of meetings, short
questions and answers, non-commercial (second hand) sale of radio equipment,
available software.

Contributors are mentioned, and interested persons are asked to contact them
directly.

RMOB can be copied freely in unabridged and unmodified form. Extracts should
indicate the source (Radio Meteor Obs Bulletin, month and year).

If you want to subscribe (or un-subscribe) to the E-mail distribution list,
please send a message to C. Steyaert.
Those not having access to E-mail can obtain a printed copy free of charge
from J. Van Wassenhove (current or back-issues).


4. CONTRIBUTORS / USEFUL ADDRESSES

Enric Fraile Algeciras (EA3BTZ)
C/ Moianes 19-21 Esc. A  6 1, E Barcelona
mailto:Ea3btz@retemail.es
http://personal3.iddeo.es/ea3btz (in Spanish)

Michael Boschat
Royal Astronomical Society of Canada - Halifax Center
6391 Liverpool St., Apt.1, Halifax, Nova Scotia, Canada  B3L 1Y1
mailto:andromed@atm.daldot ca
http://www.atm.daldot ca/~andromed

Gabor Bucsi (Gabka)
Bks, Hungary
Mobil: +36 70/21-22-491
mailto:gabo_hu@bekesnet.hu
http://kovihome.freeweb.hu/radiomet

Maurice De Meyere (ON4NU)
Hullekensstraat 24, B-9831 Deurle, Belgium
tel: +32 (9) 282 35 26
mailto:maurice-demeyer@tiscalinetdot be

Ghent University, Astronomical Observatory
Krijgslaan 281(S9), B-9000 Gent, Belgium
mailto:Pierredot deGroote@rug.acdot be, mailto:paul_vauterin@applied-maths.com

TianJing Ouyang (TIAOU)
Wuhan, Hubei Province, P. R. of China
mailto:oy_tj@sina.com

H. W. Kelsey, A.L.P.O.
Conway, Arkansas, USA
mailto:wkelsey@conwaycorpdot net

Lycee Langevin, Patrick Decomble
La Seyne sur Mer, France
mailto:sti.langevin.nice@wanadoo.fr

Alastair McBeath
IMO: International Meteor Organization
12A Prior's Walk, Morpeth, Northumberland, NE61 2RF, England, U.K.
mailto:vice_president@imodot net

Stan Nelson, KB5VL
Roswell, NM 88201, USA
mailto:sanelson@rt66.com

Hiroshi Ogawa
University of Tsukuba, Japan
mailto:HZH02257@nifty.ne.jp
Radio Meteor Obs. http://homepage2.nifty.com/~baron/

Sadao Okamoto
mailto:okamoto@jim.sugiyama-u.ac.jp

Ton Schoenmaker, Dutch Meteor Society & IMO
Meester Homanstraat 8, NL-9301 HP Roden, Netherlands
mailto:schoenmaker@astrondot nl
Call: PA0EFA

Chris Steyaert, VVS
Kruisven 66, B-2400 Mol, Belgium
tel: +32 (14) 31 51 04
mailto:steyaert@vvsdot be

Dave Swan
Christchurch, UK
mailto:daveswan@dorsetpubs.com

Pierre Terrier
Canet (close to Montpellier), France
mailto:pierre.terrier@free.fr
http://members.tripod.com/~astro_electronic/index.html
Meteor & Colorgramme web site: http://page.to/meteor/
Visual RMOB web site         : http://visualrmob.free.fr/
Meteor mailing list: mailto:meteor-request@ml.free.fr?subject=subscribe

Garfield Tsao (BM2EQB)
LonTan Observatory, LonTan, TauYan, Taiwan
mailto:tsao5916@ms4.accmail.com.tw
http://www.geocities.com/Eureka/Office/1528 (in Chinese)

Jeroen Van Wassenhove, VVS
Kouterstraat 25, B-9750 Zingem, Belgium
tel: +32 (9) 384 04 12
mailto:JeroenVanWassenhove@yucomdot be

Bruce Young
Brisbane, Australia
mailto:B.Young@uqdot net.au

Ilkka Yrjola
Kuusankoski, Finland
http://www.sci.fi/~oh5iy
Ham Call: OH5IY

--
Christian Steyaert                (RMOB0105)               8 June 2001
--

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