Gorizont 23, 85- 79 B, new web page, ...

Kurt Jonckheere (kurtjonckheere@hotmail.com)
Mon, 03 May 1999 12:47:25 PDT

Seems the following didn't came through yet..

Also check out my new web page with a graph of the flashing
period evolution of Gorizont 23 :
http://bewoner.dma.be/kjon

------

hello all,

thanks to Jason Hatton, who reminded me of the visibility of Gorizont 23,
which I had been observing two months ago.  I wasn't aware that it
had already circled the globe again.

I timed it yesterday (May 2) evening in between some high clouds and could
deduce a period indicating that this object has finally seized from
accelerating slowly !  After more than one year, the period is going up
during the last months.  To be followed !!

observations from Mike McCants, Rob Matson, Tony Beresford

91- 46 A 99-03-15 04:10      MM 1407.2  .5  28 50.25  fl to 6,7
91- 46A 99-03-24 04:38:41.9  RM 4571.96 0.15 91 50.241  mag +4 --> inv
91- 46A 99-03-25 04:21:45.0  RM 3416.47 0.1 68 50.242  mag +4 --> inv
91- 46A 99-03-30 03:44:48.0  RM 452.12 0.1 9 50.236  mag +6 --> inv
91- 46 A 99-04-08 13:03.0    AB  754.5 0.1  15 50.30    50.304 seconds =
+ or - .003
91- 46 A 99-05-02 21:19      KJ        .05  40 50.466   T=3D2018.63


I was observing at the same time as Gunnar and Rainer at a magnitude
of +5 maximal, but didn't saw the Raduga flares.

Did one of you guys made any timings and can confirm the increase of
the period ?
>Gunnar Glitscher and myself successfully observed flashes from
>Gorizont 23 yesterday 02/05/99, around 21:00 UTC from Darmstadt,
>Germany.
..
>stopwatch). Back at home, it could identify that satellite with
>certainty to be Raduga 27. Is this a known flasher?
Raduga 27 =3D 91- 14 A =3D 21132 isn't in our database PPAS yet,
so thanks for finding it.

I also tried to catch Gorizont 24 between 21h15 and 21h25 or so but
didn't saw any flashes brighter that +6.5 in my binoculars.

------------------------------------------------
85- 79 B =3D 16012 =3D Cosmos 1680 rocket

Latest observations clearly indicate that this object has been accelerati=
ng for
quite some time already, the flashing period has been going down from 15 =
to
12 seconds.  Probably the acceleration of the period has already
stopped and the period is going up again.

As Leo wrote, the maxima are rather flat (code 'A') making it difficult =
to
find the correct time to press your stopwatch.  So it is important to cou=
nt
as many as possible period.  Also a stopwatch with multiple lap-times mig=
ht
be very usefull here.

This is an easy object in binoculars.  Still visible in the evening (from=
Europe).

observations of the latest two months :
85- 79 B 99-03-15 20:20:21   LB   61.7 0.5   4 15.4   AA, mag 4->6
85- 79 B 99-03-27 04:04:41   LB  131.6 0.5  10 13.16  AA, mag 4->6
85- 79 B 99-03-28 01:49:41   LB  131.9 0.5  10 13.19  AA, mag 4->inv
85- 79 B 99-03-28 03:31:24   LB  134.9 0.2  10 13.49  AA, mag 4->inv
85- 79 B 99-04-16 23:17      MJ  127   1.5  10 12.7   A'A'
85- 79 B 99-04-19 21:36:55   LB  119.3 0.5  10 11.93  AA, mag 5->7
85- 79 B 99-04-26 21:10:20   LB  120.4 0.5  10 12.04  AA, mag 4->inv
85- 79 B 99-04-27 20:38:05   LB  127.0 0.5  10 12.70  AA, mag 4->inv
85- 79 B 99-04-29 21:14:08   LB  126.0 0.2  10 12.60  AA, mag 4->inv



All observations are greatly appreciated !!

Kurt Jonckheere (kjon@mail.dma.be),
observations collector for the Belgian Working Group Satellites.
Please send your observations, preferably in the PPAS format
to ppas@lists.satellite.eu..org


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