[amsat-bb] PSAT Elements are 6 minutes early
hamsat at xs4all.nl
Sat May 23 14:23:35 UTC 2015
Yesterday and today I performed detailed doppler measurements on high
both on 70 cm and on 2 m.
I found that yesterday the satellite was 10 seconds early and today 14
compared to the ULTRASat3 TLE set.
I wonder why you think it is 6 minutes late. Maybe you were confused by
telemetry transmissions on 145.826 MHz of UoSAT-OSCAR 11, which passed
about 6 minutes
On 2015-05-22 20:21, Robert Bruninga wrote:
> I am finding that PSAT is 6 MINUTES behind the predictions of the previously
> provided original Launch TLE :
> 1 99993U 15140.67013889 .00040043 00000-0 10235-2 0 00009
> 2 99993 055.0004 339.9238 0251027 182.3314 074.3075 15.12517086000014
> So until I get new ones. Just point at AOS and wait 6 miuntes.
> Also, I had said not to TX PSK31 on the 10m u plink until you heard the
> downlink. Well, that was dumb advise, because the transponder does not come
> up unless it hears PSK31!
> So the new rule is, Listen first. If not heard, TX anyway. If not heard
> then, Fix your problem, and try again?
> We don’t know how the power budget will work out. So all we can do is
> Bob, WB4APR
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