R: Geosat Flare Festival from 4160 (BD) on 2012-10-12/13

From: satrack@libero.it
Date: Tue Oct 16 2012 - 09:08:05 UTC

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    Hi Bram,
    
    a very impressive list of observations! If it's not too late I will try
    to observe them tonight. 
    
    I've converted all your 69 reports to FPAS and included in
    my DB:
    
    http://www.satflare.com/fpas_query.asp?obsid=4160
    
    Best regards,
    Simone
    
    
    
    >----Messaggio originale----
    >Da: bram.dorreman@gmail.com
    >Data: 16-ott-2012 0.02
    >A: "Seesat List"<SeeSat-L@satobs.org>, <sattrackcam@langbroek.org>, "Pierre 
    Neirink"<pierre-neirinck@wanadoo.fr>
    >Ogg: Geosat Flare Festival from 4160 (BD) on 2012-10-12/13
    >
    >After sunset of October 12, 2012 the sky was partly clouded.
    >Later that night clouds disappeared. According to a calculation
    >performed many years before, this night is the one most suitable
    >one for observing flaring geosats from my latitude.
    >
    >So I dressed appriopriately for a long cold nightly stay outside.
    >I mounted my 15 x 80 pair of binoculars on its tripod, placed the
    >combination close to my house with a rather good view from souteast
    >via south to southwest.
    >
    >I decided to look at the area where the geosats exit from the shadow.
    >
    >The results exceeded my expectation:
    >I detected 69 satellites. Limiting magnitude +9.5 (estimated)
    >Brighter than or equal to magnitude +3: 4
    >Between magnitude +3.0 and +3.5       : 5
    >Between magnitude +3.5 and +4.0       : 7
    >Between magnitude +4.0 and +4.5       : 4
    >Between magnitude +4.5 and +5.0       : 4
    >Between magnitude +5.0 and +5.5       : 6
    >I regard all the satellites brigther than or equal to
    >magnitude +5.5 naked eye objects
    >(from my location in an outerpart of a modest light polluted village)
    >With my aging eyes I saw all satellites brighter than about +5.0
    >in reality.
    >
    >Following list is a log of the "observed" geosats. Specified time
    >is that of the intersection by the satellite of a reference line
    >between two stars at either side of the satellite. This reported
    >time is not the time of maximum brightness. I found it too difficult
    >to determine a time-location combination for this. I limited myself
    >to a (pseudo) positional observation to support an identification.
    >I noticed that several satellites were brighter further from the
    >shadow than others.
    >
    >Several times I witnessed three or even four naked eye geosats 
    simultaneously.
    >The constallation of Cetus had "extra" stars, slowly moving north of
    >the line between zeta and theta Ceti.
    >
    >The most brilliant event was the brigthening of four Spanish geosats.
    >Three of them on a straight line about north to south and the second west of 
    it.
    >They all reached magnitude +2.9 but not at the same time. The two at the 
    bottom
    >(South) were bright at first. The other two brightened several minutes later.
    >They are so close that I could not see them separately by naked eye.
    >
    >The following list shows the preliminary results.
    >I am aware of the fact that some geosats are so close to each other that they
    >could not be seen separately in my optical device. I reported only one of 
    these.
    >The actual reflecting satellite might be another.
    >
    >I suppose the columntitles are clear enough (1st five columns like in
    >IOD-format).
    >
    >nnnnn yyyy-nnnd site yyyy-mm-dd hh:mm:ss   mm.m   name
    >33056 2008-030B 4160 2012-10-12 21:30:17   +7.4   Turksat 3A
    >35815 2009-047A 4160 2012-10-12 21:33:43   +6.5   USA 207
    >26369 2000-028A 4160 2012-10-12 21:40:25   +5.5   Eutelsat W4
    >36101 2009-065A 4160 2012-10-12 21:41:11   +6.3   Eutelsat W7
    >24652 1996-063A 4160 2012-10-12 21:49:52   +3.7   Arabsat 2B
    >27948 2003-043A 4160 2012-10-12 21:53:26   +8.5   Eutelsat 33A
    >37392 2011-016A 4160 2012-10-12 21:54:52   +5.8   Intelsat New Dawn
    >38741 2012-043B 4160 2012-10-12 22:02:42   +5.4   Hylas 2
    >36745 2010-032B 4160 2012-10-12 22:04:58   +5.8   Arabsat 5A
    >28542 2005-005A 4160 2012-10-12 22:13:33   +4.0   XTAR-Eur
    >26719 2001-011A 4160 2012-10-12 22:14:54   +4.5   Eutelsat EB 1
    >33460 2008-065B 4160 2012-10-12 22:14:58   +8.0   Eutelsat W2M
    >26638 2000-081A 4160 2012-10-12 22:16:14   +8.0   Astra 2D
    >29526 2006-051A 4160 2012-10-12 22:24:39   +7.0   Arabsat 4B
    >25153 1998-006B 4160 2012-10-12 22:29:45   +6.5   InMarsat 3-5
    >27400 2002-015B 4160 2012-10-12 22:34:49   +8.5   Astra 3A
    >36581 2010-021A 4160 2012-10-12 22:35:25   +3.7   Astra 3B
    >25673 1999-018A 4160 2012-10-12 22:43:53   +7.2   Eutelsat W3
    >37810 2011-049B 4160 2012-10-12 22:50:50   +3.4   Arabsat 5C
    >31306 2007-016A 4160 2012-10-12 22:54:04   +7.7   Astra 1L
    >29055 2006-012A 4160 2012-10-12 22:54:08   +7.2   Astra 1KR
    >33436 2008-057A 4160 2012-10-12 22:54:30   +7.7   Astra 1M
    >26243 2000-019A 4160 2012-10-12 22:58:53   +3.3   SESat 1
    >37950 2011-074A 4160 2012-10-12 23:03:58   +5.3   Amos 5
    >37836 2011-057A 4160 2012-10-12 23:08:21   +6.5   Eutelsat W3C
    >25237 1998-013A 4160 2012-10-12 23:13:39   +7.0   Hot Bird 4
    >36582 2010-021B 4160 2012-10-12 23:20:43   +9.0   Comsat BW 2
    >29270 2006-032A 4160 2012-10-12 23:21:27   +8.5   Hot Bird 8
    >27499 2002-038A 4160 2012-10-12 23:21:29   +3.7   Hot Bird 6
    >33459 2008-065A 4160 2012-10-12 23:21:41   +4.8   Hot Bird 9
    >34810 2009-020A 4160 2012-10-12 23:26:07   +4.6   Sicral 1B
    >34710 2009-016A 4160 2012-10-12 23:34:49   +5.5   Eutelsat W2A
    >37258 2010-069A 4160 2012-10-12 23:39:02   +4.6   KA Sat
    >28946 2006-007B 4160 2012-10-12 23:39:13   +6.7   Hot Bird 7A
    >28187 2004-008A 4160 2012-10-12 23:47:58   +9.5   Eutelsat W3A
    >30794 2007-007B 4160 2012-10-12 23:52:34   +8.5   Skynet 5A
    >38652 2012-036A 4160 2012-10-12 23:56:53   +4.3   SES 5
    >32299 2007-057A 4160 2012-10-12 23:57:43   +7.7   Astra 4A
    >31577 2007-021A 4160 2012-10-13 00:04:28   +8.3   Eutelsat 3A
    >33750 2009-008B 4160 2012-10-13 00:05:12   +5.8   Hot Bird 10
    >36831 2010-037B 4160 2012-10-13 00:06:07   +5.8   Rascom QAF 1R
    >28912 2005-049B 4160 2012-10-13 00:12:47   +8.5   Meteosat 9
    >32487 2008-006A 4160 2012-10-13 00:18:20   +8.5   Thor 5
    >36033 2009-058B 4160 2012-10-13 00:18:50   +3.6   Thor 6
    >28358 2004-022A 4160 2012-10-13 00:19:19   +9.0   Intelsat 1002
    >32794 2008-022A 4160 2012-10-13 00:26:40   +8.7   Amos 3
    >27460 2002-035A 4160 2012-10-13 00:31:07   +4.5   Eutelsat WA
    >29273 2006-033B 4160 2012-10-13 00:31:52   +5.0   Syracuse 3B
    >26470 2000-046B 4160 2012-10-13 00:39:58   +3.3   Nilesat 102
    >37816 2011-051A 4160 2012-10-13 00:41:09   +5.5   Eutelsat AB7
    >26927 2001-042A 4160 2012-10-13 00:50:04   +3.6   Eutelsat AB 2
    >33595 2009-007A 4160 2012-10-13 00:57:16   +3.6   Express-AM 44
    >27508 2002-040A 4160 2012-10-13 01:01:33   +7.8   Eutelsat AB 1
    >25949 1999-059A 4160 2012-10-13 01:14:55   +9.3   Telstar 12
    >33055 2008-030A 4160 2012-10-13 01:20:00   +8.5   Skynet 5C
    >26824 2001-024A 4160 2012-10-13 01:21:31   +8.5   Intelsat 901
    >25049 1997-071A 4160 2012-10-13 01:29:20   +9.5   Sirius 2
    >38087 2012-007A 4160 2012-10-13 01:36:00   +5.5   SES 4
    >27438 2002-027A 4160 2012-10-13 01:46:34   +4.1   Intelsat 905
    >24742 1997-009A 4160 2012-10-13 01:53:50   +9.0   Intelsat 801
    >27683 2003-007A 4160 2012-10-13 01:59:26   +3.1   Intelsat 907
    >26071 2000-007A 4160 2012-10-13 02:10:10   +2.9   Hispasat 1C
    >28945 2006-007A 4160 2012-10-13 02:10:12   +2.9   Spainsat
    >37264 2010-070A 4160 2012-10-13 02:10:14   +2.9   Hispasat 1E
    >27528 2002-044A 4160 2012-10-13 02:10:15   +2.9   Hispasat 1D
    >37237 2010-065A 4160 2012-10-13 02:25:54   +7.4   Intelsat 17
    >33153 2008-034A 4160 2012-10-13 02:26:24   +3.5   Protostar 1
    >27403 2002-016A 4160 2012-10-13 02:30:45   +7.4   Intelsat 903
    >28526 2005-003A 4160 2012-10-13 02:42:28   +7.7   NSS 10
    >
    >Bram Dorreman using 15x80 binoculars
    >Site 4160: 51.27931 N, 5.47683 E, 35 m (WGS84)
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