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Re: SAFIR-M alive on 145.825@9k6



Hi folks,

On Tue, 24 Dec 2002 01:15:29 +0000, Keith O'Brien wrote:

> I just finished listing to the December 23, 2002 23:00 UTC passes
> of Payload E, D, A, C, and B from my location at EL88oa (28.0193 N
> 82.7702 W). I was lucky enough to catch all the satellites going
> from sunlight towards eclipse. At no time were two satellites in
> the sun and in range at the same time. More then one was in range
> at times, but only one was in daylight. My observation was that I
> heard, but did not print, 3 9600 packet burst coming from Payload
> A when it was just before entering eclipse. No other Payloads were
> in the sun and in range. 
> 
> My feelings at this time is that Payload A, using Epoch Rev 20
> Keplerian elements, is SAFIR. I will continue to monitor and
> observe as time permits. 

Find below a listing of the total number of packets received by the 
ZS7ANT station in Antarctica during the past three days, as well as 
the number of packets for which each payload was below the horizon.

Total packets         23 + 19 + 55 = 97

PAYLOAD A              0 +  1 +  1 =  2
PAYLOAD B              3 +  9 + 46 = 58
PAYLOAD C              0 +  4 + 19 = 23
PAYLOAD D              2 + 10 + 17 = 29
PAYLOAD E             14 + 18 + 54 = 86
SL-24 R/B - RUBIN-2   23 + 19 + 55 = 97

The tle-new.txt keps from Celestrak were used (attached below).

This confirms Keith's observation that PAYLOAD A is the best fit to  
SAFIR-M transmissions.

73 de ZR1CBC, Johann.

----
PAYLOAD A               
1 27605U 02058A   02357.07939649  .00001070  00000-0  19276-3 0   109
2 27605  64.5608  11.7981 0031557 134.1103 226.2609 14.71328475   359
PAYLOAD B               
1 27606U 02058B   02357.08454947  .00001315  00000-0  24668-3 0    84
2 27606  64.5595  11.8172 0049994 134.5813 225.9360 14.68126314   358
PAYLOAD C               
1 27607U 02058C   02356.80975736  .00002036  00000-0  35805-3 0    84
2 27607  64.5615  12.6315 0040854 134.8260 225.6179 14.69755004   311
PAYLOAD D               
1 27608U 02058D   02357.55206756  .00002169  00000-0  35645-3 0    86
2 27608  64.5615  10.3438 0022440 134.5032 225.7908 14.72948985   427
PAYLOAD E               
1 27609U 02058E   02357.07199784  .00000328  00000-0  67237-4 0    62
2 27609  64.5606  11.7701 0004691 125.2766 234.8758 14.75950702   354
SL-24 R/B - RUBIN 2     
1 27610U 02058F   02356.80269357  .00000012  00000-0  37340-4 0   295
2 27610  64.5630  13.0530 0281720 135.5395 226.8679 14.26777816   307
----
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