--- In MSG-1@yahoogroups.com, "David Taylor" <david-taylor@b...>
wrote:
According to my calculations, we are near the worst solar outage
for MSG-1 as viewed from Darmstadt. The missing segments for today
and yesterday seem to bear this out.....
You're right David, I did not expect that solar outage could have
such a drastic effect on the MSG-1 downlink to Eumetsat.
With a large dish the outage will be short. The operators probably
won't take any risk and stop receiving for some time.
The report does mention what they call "Sun-Sat_collinearity".
Guess that Hotbird 3 is a typo and should have been Hotbitd 6.
See part of the report below:
MSG1 Administration Message for 11/10/03
Issued on 12/10/03 at 15:33
MSG EUMETCast TEST DISSEMINATION:
HRIT:- 4 repeat cycles per hour.
LRIT:- 2 repeat cycles per hour (hh:15-hh:30 and hh:45-hh:00) +
Foreign Satellite Data + MDD + DCP.
Note: Due to the effects of the MSG1 eclipse there may be a
degredation of image quality for several repeat cycles around
midnight.
Note: Dissemination may be effected by the MSG-1 Sun-Sat-Collinearity
from 10/10/2003 until 20/10/2003 at around 12:35. Users may
experience local effects of Hotbird 3 Sun-Sat-Collinearity from
08/10/2003 until 16/10/2003. The time will vary with location.
Report for 10/10/03:-
Repeat cycle 22:30 was interrupted. Repeat cycles 2245-2315 were not
disseminated.
Report for 11/10/03:-
Repeat cycle 12:45 was interrupted due to Sun-Sat-Collinearity.
Report for 12/10/03:-
Repeat cycle 12:30 was interrupted due to Sun-Sat-Collinearity.
Greetings,
Arne van Belle
