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(meteorobs) Archive Refwd IMO-NEWS: Radio Meteor Obs. Bull. December 1996 (2/2)
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>Date: Mon, 6 Jan 1997 22:34:42 +0100 (MET)
>To: linasu@gemini.ldc.lu.se, gnomeck@concentricdot net, cskuo@ACS1.BUdot edu,
> 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
>
>Antenna: Dipole (height 7 m, to zenith)
>Receiver: IC-575 (ICOM) LSB BW 2.5 kHz
>Transmitter location: Sabae (in Fukui pref.), about 150 km
> north north-west from receiving station.
>Method of echo sampling: After image procedure was done by PC with FFT
> software, echoes(>10 dB(S/N)) were counted.
>
>
> Total echo rates
>
> 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
>------+------------------------------------------------------------------------
>30- 1 | 37 39 43 55 43 37 51 36 41 34 26 24 19 21 23 15 16 15 14@16@19 24 24 40
> 1- 2 | 36 42 58 61 51 56 55 43 37 34 36 32 19 21 19 15 20 17 15 13@19 28 31 42
> 2- 3 | 42 38 64 63 67 51 57 58 47 34 45 36 27 23 20 21 17 15 14@16
> 3- 4 | @24 16 18 13@18@21 22 25 32
> 4- 5 | 23 35 35 38 35 39 43 53 46 42 29 23 25@27 23 22 17 18 18 17@17 25 24 38
> 5- 6 | 40 41 50 56 47 42 45 44 33 39 36 28 29 24 24 20 18 16 13@19@18 29 29 44
> 6- 7 | 51 43 50 64 53 57 42 47 38 34 30 34 20 32 21 21 16 16 13@17 19 23 26 31
> 7- 8 | 38 39 38 58 53 55 41 41 29 39 31 29 22 21 24 17 16 17 13@15 @40 36
> 8 -9 | 46 38 49 49 42 51 47 52 55 33 43 36 31 31 19 18 15 18 24@23 24 46 48
> 9-10 | 58 42 48 69 71 70 46 37 45 40 30 34 24 28 21 16 17 11 14@20@26 39 41 65
>10-11 | 84 45 61 75 81 58 53 51 49 35 33 37 29 23 24 19 20 16 17@25@30 56 46 89
>11-12 | 93 50 92117 93 82 63 53 38 36 31 32 24 21 19 15 15 14 14@14@24 59 78117
>12-13 |154 71 88200139125 80 63 54 47 38 37 30 25 22 24 18 17 21 28@50 62105148
>13-14 |166 74118198140 87 89 75 45 33 31 30 28 23 23 17 19 14 18@31@33 36 61 77
>14-15 | 66 49 69 73 62 62 55 54 51 40@32@32 23 20 20 19 15 14 14@17@20 29 42 38
>15-16 | 39 34 53 44 48 66 43 44 40 33 27 25 29 22 23 13 14 16 17@17@22 32 26 30
>16-17 | 45 46 54 53 51 48 48 42 52 42 43 31 33 29 25 15 15 12 15@18 23 20 23 25
>17-18 | 29 37 40 44 41 37 40 46 46 47 31 26 24 18 20 19 12 14 14@20 28
>18-19 | 23 33 39 36 37 38 50 46 36 34 24 29 20 22 15 16 11 11 12 13@21 20 20 34
>19-20 | 19 27 31 42 43 44 56 47 34 37 33 30 28 19 16 15 14 15 14@16 @21 20 28
>20-21 | 27 38 41 35 46 48 56 49 49 24 33 30 25 20 21@24 18 15 13@15 21 21 23 27
>21-22 | 30 30 52 37 49 47 39 41 37 48 42 42 36 35 31@23 17 18 18@20 @24 23 24
>22-23 | 22 31 44 54 40 46 29 35 40@44 36 30 28 18 17 21 18 12 14@17@26 17 22 25
>23-24 | 24 43 40 38 44 38 45 49 34 30 23 24 21 19 19 14 14 14 15@19@20 26 27 28
>24-25 | 29 37 39 50 43 30 35 38 33 50 33 27 29 21 21 20 14 18 18 16@24 25 22 22
>25-26 | 27 29 42 44 50 35 42 47 40 29 29 31 30 20 19 19 15 12 13@18@28 20 27 31
>26-27 | 37 30 34 39 45 50 53 36 45 34 31 26 23 25 23 16 13@15 17@16@19 26 26 28
>27-28 | 29 30 39 36 38 46 51 51 41 42 40 38 33 28 22@17 15 14 12@16 21 19 34 32
>28-29 | 29 38 26 37 45 42 46 43 44 21 31 36 23 17 15 18 16 16 15@15@24 14 21 39
>29-30 | 26 39 52 40 53 47 49 39 38 26 33@25 16 19 19 13 13 13 12 16@21 15 31 31
>30-31 | 25 29 30 35 33 38 40 33 33 29 28 43 28 22 21
>------+------------------------------------------------------------------------
> 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
> Dec | UT
>
>
> Hourly rate of long (> 20 s) 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
>------+------------------------------------------------------------------------
> 1- 2 | 1 2 1
> 2- 3 | 2 1 1 1 1
> 3- 4 |
> 4- 5 | 1 1 1 1
> 5- 6 | 1
> 6- 7 | 1 1 1 1
> 7- 8 | 2 1
> 8- 9 | 1 2 1
> 9-10 | 1 2
>10-11 | 1 1 1
>11-12 | 1 4 2 1 1
>12-13 | 1 1 1 1 1
>13-14 | 1 1 1 1
>14-15 | 1 1
>15-16 | 1 1 1 1
>16-17 | 1 3
>17-18 | 1 2 1 1
>18-19 | 1
>19-20 | 1 1
>20-21 | 1 1
>21-22 | 1 4 1 2 1
>22-23 | 1 1 1 1 2
>23-24 | 1 1
>24-25 | 1 1
>25-26 | 2 1 1
>26-27 | 1 2 1
>27-28 | 1 1 1
>28-29 |
>29-30 | 1 1
>30-31 | 1
>------+----------------------------------------------------------------------
>--
> 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
> Dec | UT
>
>
>
> Notes:
> . local time = JST = UT + 9 hours.
> @nn means converted hourly rate.
>
>
> Kazuhiro Suzuki
>
>---------------------------------------------------------------------------
>Observer: Ilkka Yrjola
>Location: Finland (26 35' E, 60 54' N)
>Frequency: 87.360 MHz
>Receiver: Salora SRP-22 modified, narrow band FM (B=15 kHz).
> detected signal level >-122 dBm.
>FM detection, no pulse noise rejection required.
>Antenna: 2 element Yagi with 4 dBd gain to SW, azimuth: 45 o (SW)
>Data sampling system: threshold triggering, sampling rate 64 ms.
> Computer logs total hourly elapsed reflection time, number of
> threshold crossings for the hour, the longest time the signal was
> continuously above detection level for the hour.
> Data stored in the Compact MS-Soft format. Software for viewing available
> from FTP.FUNET.FI pub/ham/vhf-work/mssoft43.zip (new version!)
>
> Counts in one hour intervals starting at:
>
> Geminids
>
> | 1996
> UT | 12 Dec 13 Dec 14 Dec 15 Dec
> ----+-----------------------------------
> 0 | 579 970 956 437
> 1 | 447 654 767 414
> 2 | 462 460 830 384
> 3 | 603 917 1067 478
> 4 | 856 1196 1122 470
> 5 | 817 1157 948 419
> 6 | 786 971 697 491
> 7 | 740 788 802 409
> 8 | 546 640 704 484
> 9 | 425 587 557 450
> 10 | 390 445 384 333
> 11 | 272 327 341 304
> 12 | 301 270 260 230
> 13 | 255 252 215 228
> 14 | 272 341 257 206
> 15 | 361 456 248 178
> 16 | 354 473 248 201
> 17 | 451 653 322 222
> 18 | 639 903 384 216
> 19 | 796 1224 481 281
> 20 | 1016 1289 403 282
> 21 | 1246 1507 410 310
> 22 | 1265 1244 486 354
> 23 | 1278 1348 467 395
> ----+-----------------------------------
> UT | 12 Dec 13 Dec 14 Dec 15 Dec
> | 1996
>
>
> Ursids
>
> | 1996
> UT | 20 Dec 21 Dec 22 Dec 23 Dec
> ----+-----------------------------------
> 0 | 362 344 560 366
> 1 | 329 367 613 327
> 2 | 433 252 562 415
> 3 | 374 345 588 362
> 4 | 357 398 546 349
> 5 | 384 407 500 338
> 6 | 315 327 536 309
> 7 | 386 446 685 365
> 8 | 355 395 674 418
> 9 | 339 351 449 384
> 10 | 322 386 553 371
> 11 | 297 422 390 259
> 12 | 265 214 405 259
> 13 | 259 314 305 226
> 14 | 194 318 220 178
> 15 | 174 222 231 167
> 16 | 205 224 177 177
> 17 | 195 300 210 165
> 18 | 246 270 226 235
> 19 | 202 300 179 214
> 20 | 246 351 273 199
> 21 | 298 288 269 295
> 22 | 325 382 337 263
> 23 | 321 411 326 281
> ----+-----------------------------------
> UT | 20 Dec 21 Dec 22 Dec 23 Dec
> | 1996
>
>
> Ilkka Yrjola / via M. De Meyere
>
>---------------------------------------------------------------------------
>Observer : W.T. Zanstra
>Location : Appingedam, Netherlands (6 51' E, 53 19' N)
>Frequency: 72.11 MHz
>Transmitter location: Wroclaw, Poland, 135 kW, distance 735 km.
>Antenna : Yagi, 5 elements, geographical azimuth 110 deg (ESE),
> elev 12 deg.
>Receiver : Bearcat UBC 177XLT Scanning Radio, sensitivity 0.3 uV
>Observing method: listening
>
>
> Draconids, Leonids and sporadic meteors in October and November 1996
>
> Raw counts of reflections (corrected for dead time) during one
> hour intervals starting at:
>
> | October 1996 November 1996
> UT | 08 11 15 16 17 18
> ----+--------------------------------------------
> 04 | 102 131 91
> 05 | 82 104 121 83
> 06 | 81 108 108 89
> 07 | 84 79 119 90
> 08 | 74 71 75 76 100 62
> 09 | 71 63 68 76 93 75
> 10 | 66 56 61 81
> 11 | 58 57 43 40
> 12 | 53 63 54 61
> 13 | 51
> ----+--------------------------------------------
> UT | 08 11 15 16 17 18
> | October 1996 November 1996
>
>
> Wim Zanstra
>
>
>2. ANNOUNCEMENT
>
>Making RMOB results more widely-known
>
>As some of you may already be aware, thanks to the kind offices of Chris
>Steyaert, I have been able to analyse and publish some of the recent RMOB
>data in the IMO's journal "WGN", partly to thank all the observers involved,
>but partly to make more people aware of what radio meteor work is currently
>being carried out. I am also interested to discover what correlations are
>or are not present between different observers' data collected at the same
>time. This may well help refine our understanding of radio meteor showers
>(especially the daytime showers which are naturally not otherwise
>observable), and also to clarify problem areas, such as periods of Es, local
>interference or other difficulties. My intention is to continue to analyse
>and produce reports from recent RMOB data as part of the on-going series of
>SPA Meteor Section results in "WGN" and the "SPA News Circulars".
> However, Chris Steyaert also thoughtfully sent me the complete series of
>RMOBs, and rather than simply let these lie and be forgotten, I would like
>to at least summarize the main points of what they show, perhaps as annual
>or six-monthly articles, again, so that more people will be made aware of
>just what radio observing is being carried out now, and what has been done
>in recent years. As it is over three years since the initial RMOB in August
>1993, it is entirely possible that some of the observers involved may have
>analysed their data themselves, and perhaps even published articles from
>their data. I have no desire to duplicate any such efforts, especially as
>the task of producing these summaries is not a short-term proposition.
>Consequently, if anyone has carried out such analyses or published articles,
>I would be greatful if the people concerned would send me copies of what
>they have done with their data, or at least, let me know where and how they
>published their results.
> All observers will naturally be acknowledged in anything I publish, and I
>would like to thank you in advance for your cooperation. Good luck with all
>your observing!
>
>
> Alastair McBeath
>
>
>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
>
>Maurice De Meyere
>Hullekensstraat 24, B-9831 Deurle, Belgium
>tel: +32 (9) 282 35 26
>Call: ON4NU, packet: ON4NU@ON4AWP
>E-mail: via Chris Steyaert
>
>University of Ghent, Astronomical Observatory
>E-mail contact: Paul.Vauterin@omadot be
>
>Werfried Kuneth
>Ferndorf, Austria
>Call: OE8FNK
>E-mail: 100021.514@compuserve.com
>
>Kimio Maegawa
>Fukui National College of Technology, Electro-Information Course
>E-mail: kmaegawa@ip.fukui-nct.ac.jp (weekdays), HAG00032@niftyserve.or.jp
>tel: 0778-62-1112-408 (PB) fax 0778-62-3414
>Call: JA9BOH PM86fa
>
>Alastair McBeath
>IMO: International Meteor Organization
>12A Prior's Walk, Morpeth, Northumberland, NE61 2RF, England, U.K.
>E-mail: via Chris Steyaert
>
>Ingo Reimann
>Roennauer Ring 38, D-23570 Luebeck, Germany
>
>Chikara Shimoda
>178, Hario, Asahi-mura, Higashitikuma-gun Nagano, Japan
>Fax: +81-263-99-3532
>E-mail: DZB91458@pcvan.or.jp
>
>Chris Steyaert, VVS
>Kruisven 66, B-2400 Mol, Belgium
>tel: +32 (14) 31 51 04
>E-mail: steyaert@vvs.innetdot be
>Compuserve: 72650,3513
>
>Kazuhiro Suzuki
>249-1, Shiinoki, Tameto-cho, Toyokawa, 442, Japan
>Fax: +81-5337-6-2852
>E-mail: kaze@tcp-ip.or.jp
>Radio Meteor Data (RMD), Japan: http://www.tcp-ip.or.jp/~kaze/rmd.htm
>
>Jeroen Van Wassenhove, VVS
>'s Gravenstraat 66, B-9810 Nazareth, Belgium
>tel: +32 (9) 385 61 09
>E-mail: 100101.734@compuserve.com
>
>Ilkka Yrjola
>Jukolantie 16, FIN-45740 Kuusankoski, Finland
>tel: work: +358 (05)0204152797 fax +358 (05)0204152999
> home: +358 (05)3743745
>Call: OH51Y
>
>W.T. Zanstra
>Spijkerlaan 13, 9903 BB Appingedam, Netherlands
>tel: +31 (0)596 625617
>Email: via tonsch@nfradot nl
>
>--
>Christian Steyaert (RMOB9612) 6 January 1997
>--
>
> ------------------------------------------------------------------------
>| Chris Steyaert Tel : +32 (14) 31 51 04 |
>| V.V.S. Astronomical Association |
>| Belgium E-mail : steyaert@vvs.innetdot be |
>| Kruisven 66 Compuserve: 72650,3513 |
>| B 2400 Mol, Belgium 51° N, 5° E |
> ------------------------------------------------------------------------
>
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