Gorizont 23, Resurs rocket, ...
Kurt Jonckheere (kjonckheere@mail.unicall.be)
Tue, 28 Jul 1998 18:09:28 +0100 (WET DST)
Jason Hatton wrote :
>I finally caught a glimpse of Gorzont 23 at 21:10UT last night
>(22-Jul-98) in my 6" Scope. It is still flashing, but no brighter than
>mag +8. Timing
>11 periods I got a flash period of 50.55sec, so it looks like the period
>is still increasing.
Last Thursday (23 Jul 98), I finally had a nice observation session.
Gorizont 23 = 21533 = 91- 46 A was indeed rather faint, around magnitude
+9, so mucht fainter than the +5.5 of some months ago. (21h10m UT)
Period was 50.575 seconds, so it is definitely going up again.
Walter Nissen wrote about Resurs 1-4r = 98- 43 G = 25400 :
>98- 43 G 98-07-24 4:01:52.8 WN 43.9 .8 3 14.64 __', Resurs 1-4r,
> 25400, initially S near Arcturus, then began to dim
> briefly, sub-periods 6.75s + 7.89s = 14.64s
> minima measured as much more precise than M maxima
>Can anyone confirm the sub-periods for the bright 98- 43 G? and
>recall an object presenting a similar appearance? Steady in the South,
>displays brief dips in the North. I can't recall such an object.
I saw this object on 23 July with a period of about 7.8 s (21h23m UT)
I remember clearly that other Zenits were also "flashing in some part of
the sky" and "steady in another part of the sky".
E.g. see the PPAS for 94- 23 B, on 94-06-23 Tristan Cools remarked :
"only var(FF) low in NE" and other ppas entries.
I also observed some Centaurs :
85- 55 B = 15874 = Intelsat 5F11 rocket between mag +9 and +13 with
a period of 9.05 seconds
77- 41 B = 10025 = Intelsat 4-4 rocket, FF, mag +9-> invisible,
period 5.35 seconds. Last observation of this one was by Ron Welch
in 1983 with a period of 4.5 seconds.
86- 3 B = 16482 = Satcom K1 was rather faint, magnitude +12 at maximum,
flashing with a period of about 28.7 seconds.
Last (and only) observation recorded in our archive PPAS shows it with
80 seconds as seen by Pierre Neirinck in '93.
Greetings,
Kurt Jonckheere
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Kurt Jonckheere (kjonckheere@unicall.be) 51.2 N 2.9 E 4m ASL
Accelerations : http://uc2.unicall.be/kjonckheere/index.htm
Observations collector for the Belgian Working Group Satellites:
Send your observations of flashing satellites, preferrably in the correct
PPAS format to ppas@lists.satellite.eu.org
"Join as at Eurosom 3 in Edinburgh, Scotland on October 24/25, 1998"
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