[Prev][Next][Index][Thread]
(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 Yrjölä
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 Yrjölä
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 6º 1ª, 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 (Gabóka)
Békés, 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
--
To UNSUBSCRIBE from the 'meteorobs' email list, use the Web form at:
http://www.tiacdot net/users/lewkaren/meteorobs/subscribe.html