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(meteorobs) IMO-NEWS: Radio Meteor Obs. Bull. December 1996 (1/2)
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>Date: Mon, 6 Jan 1997 22:34:42 +0100 (MET)
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> steyaert@vvs.innetdot be, warrend@rl.af.mil, 100101.734@compuserve.com,
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>From: Christian Steyaert <steyaert@vvs.innetdot be>
>Subject: Radio Meteor Obs. Bull. December 1996
>
>Radio Meteor Observation Bulletin No. 41 January 1997
>
>
>1. FORWARD SCATTER METEOR OBSERVATIONS
>
>
>Observer: Maurice De Meyere
>Location: Deurle, Belgium (3 37' E, 51 00' N)
>Frequency: 66.51 MHz
>Transmitter locations (all stations of more than 10 kW):
> 66.35 MHz, Klaipeda, Lithuania 12 kW, 05h00-22h00
> 66.41 Siedlce Poland 39 04h57(Sun05h57)-02h00(Sat03h00)
> 66.47 Viesintos Lithuania 12 05h00-22h00
> 66.50 Sofia Bulgaria 10 24hrs
> 66.56 Poznan Poland 56 04h57(Sun05h57)-02h00(Sat03h00)
> 66.62 Budapest Hungary 100 24hrs
> 66.68 Valmiera Latvia 20 06h00-22h00
>Antenna: crossed Yagi, 4 elements, astronomical azimuth 270 deg (= E),
> elev 27 deg
> Antenna amplifier: 25 dB max level 90 dBmuV
>Receiver: commercial, Progresson 447A, TESLA (Bratislava)
> The receiver was calibrated with a Marconi TF2008 signal
> generator. Sensitivity: 5 muV (modulation frequency
> 1000 Hz, frequency sweep 38 kHz) at (S+N)/N = 20 dB
>
>Observing method: automated setup, 150 samples/second, 8 bit resolution.
> [Time and details of all individual meteor reflections are stored
> on file in the University of Ghent format (Prometeos), and are
> available for further analysis. Reduction software for DOS and
> Windows available].
>
> December 1996
> Geminids, Ursids
>
> Raw counts of reflections with a duration of at least 0.027 s
> during one hour interval starting at UT:
>
> Dec | UT
> 1996 | 21 22 23 00 01 02 03 04 05 06 07
> ------+-------------------------------------------------------
> 1- 2 | 25 58 62 95 83 92 122 123 87 82 97
> 2- 3 | 14 46 33 45 57 52 59 87 48 59 58
> 3- 4 | 25 33 33 30 50 37 73 59 64 54 66
> 4- 5 | 15 33 44 57 62 71 109 109 114 106 74
> 5- 6 | 23 28 30 45 44 48 50 57 58 63 78
> 6- 7 | 15 35 36 31 35 47 58 50 57 83 154
> 7- 8 | 6 29 44 40 31 39 53 61 52 64 63
> 8- 9 | 38 35 39 50 68 47 78 58 68 105 124
> 9-10 | 12 32 25 20 29 49 79 59 44 32 50
> 10-11 | 18 19 33 35 34 43 57 52 52 71 64
> 11-12 | 21 26 26 24 43 39 57 79 66 112 93
> 12-13 | 13 30 43 54 72 81 68 54 56 102 130
> 13-14 | 48 50 56 53 48 85 87 73 73 94 147
> 14-15 | 27 22 25 42 44 50 55 59 46 73 74
> 15-16 | 18 27 25 41 37 47 64 47 58 59 75
> 16-17 | 38 24 22 22 33 38 63 70 64 82 53
> 17-18 | 17 20 18 14 25 43 41 54 45 36 47
> 18-19 | 8 22 14 21 27 40 23 33 44 59 41
> 19-20 | 17 20 19 40 36 85 63 40 43 73 107
> 20-21 | 11 35 22 30 37 47 45 63 35 41 36
> 21-22 | 25 26 35 33 43 59 56 67 63 66 60
> 22-23 | 12 10 21 18 29 22 23 31 22 26 37
> 23-24 | 6 8 7 11 18 26 16 28 27 41 18
> 24-25 | 8 6 8 8 8 26 23 16 28 13 19
> 25-26 |
> 26-27 | 9 13 11 10 11 17 19 26 35 41 27
> 27-28 | 6 7 12 17 13 19 18 19 27 27 4
> 28-29 | 4 5 6 14 13 14 12 10 20 23 34
> 29-30 | 10 2 17 11 32 27 33 30 43 43 40
> 30-31 | 7 10 14 16 16 32 32 22 30 29 24 34 32
> 31-01 | - - - 13 26 15 24 21 29 22 17 22 26
> ------+-----------------------------------------------------------------
> 1996 | 21 22 23 00 01 02 03 04 05 06 07 08 09
> Dec | UT
>
>
>Notes:
> . local time = UT + 1 hour.
> . Geminid activity on Dec 12-14.
> Best forward scatter conditions for this setup between 2h and 8h UT.
>
>
> Maurice De Meyere
>
>---------------------------------------------------------------------------
>Observer: Werfried Kuneth
>Location: Ferndorf, Austria (13 37' E, 46 45 ' N)
>Antenna: 3 element Yagi
>Receiver: AR-8000 at 48.2500 MHz, SSB mode, no preamplifier.
>Transmitter: 150 kW TV video carrier in Madrid (Spain),
> distance 1550 km, southwest.
>Observing method: automatic setup using FFTDSP42t software by AF9Y to
> record the audio signal. 20 channels of 2 Hz width are used for
> meteor identification.
> More details see <http://wwwdot net4you.co.at/user/kuneth/info.html>
>
> I have also included some of the radio meteor shower peaks in 1996
> and 1995 at this address, each covering about 1.5 hours of the showers.
>
> From the saved graphic files, the following raw counts are computed:
> (minimum reflection duration of 3 seconds):
>
>
> Dec | UT
> 1996| 0h 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | 18 19 20 21 22 23
>-----+-------------------------------------------------|------------------
> 1 | 8 7 14 4 4 9 20 | 5.12 16
> 2 | 8.22 17 8.16 12.27 15 33 25 18 20 9 11 6 3 | 3 7 6 5 16
> 3 | 11 5 8 12 19 9.12 5 12 16 20 9 13 6 7 7 | 7 8 5
> 4 | 8 6 6 8 6 15 13 10 9 8 14 11 5. 1 | 7. 5 16
> 5 | 11 9 10 7 9 8.15 13 15 15 6 6 14 3 3 3 | 5 3 1. 4. 7 14
> 6 | 7 5 2 12.11 12.16 10 13 8 7 3 2 5 7 1.| 2. 3 15
> 7 | 11 9 8 6 5 7 7 9 4 6. 2 | 5.
> 8 | 14 23 | 6.14
> 9 | 16 14 11 18 18 6 8 19 8 4 6 8 7 2 3 2 | 4 10 6 2.14 15
> 10 | 17 26 15 14 3 11 14 7 6 14 13 8 4 3 4 2 | 1.10 12 12
> 11 | 20 14 6 18 12 13 16 13 7 8 3 4 2 4 5 2 | 17 8.11 31
> 12 | 29 21 14 10 7 30 27 22 16 13 1 7 9 9 3 2.| 8 28 13.25.57 53
> 13 | 49 45 32 11 7 25.28 24 20 9 9 7 7 3 5 0 | 12 38 56 44.58 70
> 14 | 51 75 26 12 19 32 36 24 9 13 6 3 1 4 | 9 2. 5.15
> 15 | 17 15 5 12 10 11 8 6 4. | 2. 4 3 8 5
> 16 | 4 7 18 10 16 13 8 5 4 4 11 6 14 8 2 3 | 2. 0 7 9 4 4
> 17 | 7 14 9 13 8 10 6 5 3 2 7 2 0 3 0. 1.| 4
> 18 | 6 5 5 2. 7 11 4 4 4 2 7 7 4 6 4 |
> ..
> 21 | 2 5 2 7 | 0. 5. 5 4 2
> 22 | 15 6. 8.11 13.20 17 19 12 11 |
>-----+-------------------------------------------------|------------------
> 1996| 0h 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | 18 19 20 21 22 23
> Dec | UT
>
>
>
> Notes:
> . the Geminids showed up very well from Dec. 12 to Dec. 14.
> . from Dec. 21 - Dec 22 the Ursids were recorded.
> . a dot (.) after the number stands for a lower observation period: 20-40 min.
> . blank value means either few or no data available, interference,
> power failure or transmitter shutdown.
> . From 02:00 - 04:00 UT a different transmitter is reported.
> Precision is therefore lower at that period.
> . local time conversion: 1 hours ahead of UT (07h00 UT is 08h00 local)
>
>
> Werfried Kuneth
>
>---------------------------------------------------------------------------
>Observer: Kimio Maegawa
>Transmitter: 50 W CW 53.7500 MHz
>Transmitter antenna: 2 element Cross Yagi 4dBi, zenith
>Transmitting Location: Sabae city (136 11' E, 35 56' N)
>Receiver: IC726 500 Hz BW SSB, sensitivity -150 dBm sensit
>Receiver antenna: 3el Yagi 7 dBi (elev 70 deg, az 150 deg = SE)
> height 10 m
>Receiving Location: Ohno city (136 53' E, 36 00' N)
>Data processing : Receiver output is fed into DX2-66 MHz PC and analyzed by
> AF9Y's FFTDSP42 software.
> Then stored every 4.22 min automatically with GIF format.
> Play back GIF files and count echoes manually by the doppler
> shift rejecting tropo signal or airplane echo.
>
>
>A: all echoes L: long echoes (T > 2.5 s)
>
>
> HRO results during 1996 Orionids
> Observed hourly echo number
>
> | October
> | 15-16 16-17 17-18 18-19 19-20 20-21 21-22 22-23 23-24
>---+-------------------------------------------------------------------------
>UT | A L A L A L A L A L A L A L A L A L
>21 | @127@12 89 5 @112@11 @72 @8 @121 @6 @142@12 113 16 114 16 119 16
>22 | 90 12 92 9 116 8 92 4 112 10 115 7 113 8 91 8 119 13
>23 | 100 7 74 6 67 1 75 5 98 8 98 4 64 8 78 7 78 8
>00 | 66 3 49 1 34 1 68 3 80 1 105 5 66 5 42 2 69 2
>01 | 57 3 65 2 48 2 52 1 76 2 67 2 65 0 53 2 41 0
>02 | 45 2 45 3 45 0 35 2 76 2 51 0 65 1 26 0 36 1
>03 | 24 0 38 1 41 1 27 0 67 2 56 1 64 1 27 3 37 0
>04 | 26 1 25 0 47 1 59 5 58 3 39 1 44 0 25 2 38 1
>05 | 15 2 34 1 39 1 26 0 38 0 27 0 31 1 18 0 46 2
>06 | 22 2 23 2 20 0 23 2 21 1 23 0 25 1 22 0 32 2
>07 | 27 3 23 1 23 0 22 0 27 1 45 0 23 0 22 1 24 0
>08 | 20 2 23 2 19 0 14 1 28 1 15 0 28 0 17 0 23 0
>09 | 24 1 24 0 24 0 29 0 29 0 31 0 29 1 20 0 20 2
>10 | 31 0 33 0 33 2 30 0 37 2 28 0 33 1 19 0 25 1
>11 | 44 2 50 2 39 1 59 1 66 1 49 2 49 1 32 1 41 4
>12 | 65 2 57 7 48 2 71 3 63 1 84 6 54 7 46 1 42 3
>13 | 76 3 92 7 74 6 69 6 86 6 114 5 67 10 72 6 50 5
>14 | 66 5 79 0 76 1 61 2 91 7 95 6 79 6 79 3 56 5
>15 | 96 7 78 2 76 3 74 4 113 8 111 8 103 11 94 8 56 4
>16 | 96 8 85 4 81 4 108 8 115 9 129 14 110 9 106 9 @62 @4
>17 | 110 15 110 7 107 10 121 12 142 16 135 9 103 4 104 8 @104 @8
>18 | 123 8 124 1 120 4 90 5 127 11 129 12 132 12 85 6 93 8
>19 | 113 9 108 7 91 12 89 3 94 7 124 12 113 6 57 6 103 7
>20 | @94 @7 @93 @4 @121 @6 @104 @7 @131 @9 @140 @4 @107@16 @91 @7 117 12
>---+-------------------------------------------------------------------------
> | 15-16 16-17 17-18 18-19 19-20 20-21 21-22 22-23 23-24
> | October
>
>Notes:
> . @ means less than 60min.
> . local time = JST = UT + 9 hours
> . additional information is available at
> Home Page http://www.tcp-ip.or.jp/~kaze/rmd.htm
> Anonymous FTP ftp:rasc5.kurasc.kyoto-u.ac.jp/pub/nakamura/hro
>
>
> Kimio Maegawa
>
>---------------------------------------------------------------------------
>Observer: Ingo Reimann
>Location: 10 51' 01" E, 53 57' 21" N, 13 m above sea level
>Frequency: 88.40 MHz (three or more stations)
>Antenna: 6 element Yagi
>Antenna Azimuth: 340 deg Elevation: 53 deg
>Receiver: Technics ST-Z55 with SU-V505
>Observing method: Listening (tape-recordings)
>
>
> Raw counts of reflections during one hour interval starting at UT:
>
> Nov |
> 1996 | 01h 02 03 04 05 06 07 08 09 10 11 24
> ------+-----------------------------------------
> 13 | 11 13 16 17 - - - 04 04 01 09 11
> 14 | 28 25 33 22 - - - 10 10 - 06 -
> 15 | - - 20 24 - - - - - - - 13
> 16 | - - 16 - - - - - - - - -
> 17 | - - - - - - - - - - 10 -
> 18 | - - - - - - - - - - - -
> 19 | 14 19 32 16 - - - 16 17 16 07 -
> 20 | 13 12 15 17 - - - 14 14 12 07 -
> ------+-----------------------------------------
> 1996 |
> Nov |
>
>
> Ingo Reimann / via Jeroen Van Wassenhove
>
>---------------------------------------------------------------------------
>Observer: Chikara Shimoda
>Location: Asahi, Nagano, Japan (137 51' E, 36 07' N)
>Frequency: 81.4 MHz
>Transmitter Location: FM-Japan 81.3 MHz, 10 kW, distance 180 km
>Antenna: 5 element Yagi directed to the Zenith.
>Receiver: AM-FM Tuner (TRIO KT-1100)
>Observing method: Meteor echoes output from center-tuning meter were
> recorded on a pen-recorder chart.
>
> Dec | UT
> 1996 | 11 12 13 14 15 16 17 18 19 20 21 22 | *(1) **(2)
> -----+-------------------------------------------------+-----------
> 1 | 12 16 18 25 14 25 21 26 24 24 | 18.3 23.8
> 2 | 9 16 18 24 17 20 19 23 27 29 27 15 | 17.3 23.3
> 3 | 17 15 14 20 21 19 20 18 25 24 18 26 | 17.7 21.8
> 4 | 15 22 29 27 24 20 15 21 25 25 19 25 | 22.8 21.7
> 5 | 15 17 11 14 18 18 32 30 27 21 24 16 | 15.5 25.0
> 6 | 15 24 15 22 19 17 13 19 22 18 20 16 | 18.7 18.0
> 7 | 16 8 19 10 19 15 19 18 26 26 17 26 | 14.5 22.0
> 8 | 11 17 12 23 22 17 36 16 28 13 | 17.0 23.3
> 9 | 17 20 22 28 22 29 24 33 28 24 26 19 | 23.0 25.7
> 10 | |
> 11 | 16 25 33 22 26 15 15 18 18 28 31 30 | 22.8 23.3
> 12 | 24 36 35 39 30 14 18 22 39 30 44 29 | 29.7 30.3
> 13 | 34 70 53 52 48 24 22 27 39 41 31 32 | 46.8 32.0
> 14 | 19 27 24 25 29 13 19 20 27 24 33 27 | 22.8 25.0
> 15 | 10 16 13 11 24 15 21 23 24 24 21 25 | 14.8 23.0
> 16 | 7 21 11 16 20 14 21 22 19 30 20 17 | 14.8 21.5
> 17 | 15 13 18 19 16 13 28 19 27 15 24 24 | 15.7 22.8
> 18 | 13 14 20 13 13 18 20 19 24 17 22 22 | 15.2 20.7
> 19 | 10 16 19 21 | 16.5
> 20 | 15 20 19 15 17 25 20 18 24 19 | 11.5 20.5
> 21 | 15 13 16 10 15 16 19 21 20 21 19 27 | 14.2 21.2
> 22 | 12 8 9 18 12 11 17 19 21 19 16 21 | 11.7 18.8
> 23 | 10 13 7 14 | 11.0
> 24 | 9 17 11 11 12 22 11 12 13 28 18 23 | 13.7 17.5
> 25 | 15 19 16 12 16 17 17 21 23 33 20 23 | 15.8 22.8
> 26 | 13 12 10 8 17 14 21 18 25 28 29 20 | 12.3 23.5
> 27 | 7 15 11 15 13 10 17 20 18 14 23 19 | 11.8 18.5
> 28 | 11 16 13 12 17 14 10 18 15 23 24 17 | 13.8 17.8
> 29 | 13 12 14 10 10 9 19 18 18 15 18 | 11.3 17.6
> 30 | 8 7 15 16 16 18 13 20 22 20 17 15 | 13.3 17.8
> 31 | 10 16 12 11 14 19 15 17 15 24 28 15 | 13.7 19.0
> -----+-------------------------------------------------+-----------
> 1996 | 11 12 13 14 15 16 17 18 19 20 21 22 | *(1) **(2)
> Dec | UT
>
> * (1) average hourly rate between 11-17 UT
> **(2) average hourly rate between 17-23 UT
>
>
> Ursids 1996
>
> Total echoes:
>
>Dec UT
>1996 15 16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14
>-----------------------------------------------------------------------------
>20-21 19 15 17 25 20 18 24 19 15 11 12 10 10 10 8 5 8 5 4 6 15 13 16 10
>21-22 15 16 19 21 20 21 19 27 22 22 26 24 14 17 11 11 7 7 7 4 12 8 9 18
>22-23 12 11 17 19 21 19 16 21 18 14 10 11 12 7 6 5 3 5 3 8 10 13 7 14
>
> Echoes longer than 5 s:
>
>Dec UT
>1996 15 16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14
>-----------------------------------------------------------------------------
>20-21 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
>21-22 0 0 0 0 1 1 0 0 0 2 2 1 0 3 2 0 1 1 0 0 0 0 0 0
>22-23 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
>
>
> - local time = JST = UT + 9 hours
>
>
> Chikara Shimoda
>
>---------------------------------------------------------------------------
>Observer: Kazuhiro Suzuki
> HRO (Radio Meteor Observation using HAM)
>Location: Toyokawa Meteor Observatory (137.32 deg E, 34.81 deg N)
> Shiinoki, Toyokawa-city, Aichi, 442, Japan
>Transmitter: JA9BOH 53.7500 MHz, CW 50 W
>
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