Fasat B=OK obs was Noaa 9

Tristan Cools (tcools@nic.INbe.net)
Fri, 18 Jun 1999 00:21:47 +0200 (CEST)

At 11:16 16-06-99 +0100, you wrote:

>FASAT-B is not tumbling - it is spinning around the Z axis at a 10min rate
>(0.6 degr/second).  It is still 100% functional and is primarily being used
>for earth imaging and ozone monitoring.


Hello,


After checking for other satellites I discovered that NOAA
9(1984-123A/15427) was running almost exact the same track as Fasat B with a
time difference of only 15s.  
So it is easy to have things mixed up here.

Russell Eberst came to the same conclusion.


I found a few PPAS reportings of NOAA 9:


84-123 A 92-10-04 18:17      TC                       S, mag +5.5
84-123 A 94-02-16 17:11      PK                       mag +2
84-123 A 94-02-18 20:05      TC                       S, mag +4.5
84-123 A 95-03-05 20:25:45   PN                       S, mag +2
84-123 A 98-07-01 21:43:20   RO                 6.9   +/-0.3 TRIPLE MAX
84-123 A 98-07-16 21:45:30   RO                14.1   +/-0.2 TRIPLE MAX
84-123 A 98-07-21  3:37: 2.8 WN   27.2  .8   4  6.81  AA', NOAA 9, mag 3 or 4


The last obs of Walter Nissen shows that this satellite was tumbling with
6.81s last year.  But could the rotation period be going up so fast for a
payload ?  I measured 36s on June 15.  Does anyone have some recent
observations of this satellite ?


Tristan Cools
tcools@nic.INbe.net
BWGS Member - Belgian Working Group Satellites

Observing at:

Damse Vaart: 3.2486E/51.2279N
Ryckevelde: 3.2867E/51.2054N
Brugge: 3.1611E/51.2108N