wa2ise@cbnewsb.cb.att.com (robert.f.casey) (06/17/91)
The following was copied from amateur radio packet network:
Msg# TSF Size #Rd Date Time From MsgID To
57980 BF 1967 1 08-Jun 0010 ZL4HG KGJB47627573 WESAT@AMSAT ()
Sb: FY-1B STATUS 4-Jun-1991
>From the NOAA Electronic Bulletin Board...
Posted: Tue, Jun 4, 1991 9:54 AM EST Msg: KGJB-4762-7573
From: C.STATON
To: sub.noaa.sat.1
CC: r.bernstein, b.howard
Subj: OS: FY-1B STATUS - 6/4/91
STATUS OF CHINA'S POLAR ORBITING SATELLITE - FY-1B (JUNE 4 1991)
The Satellite Meteorological Center (SMC) of China's State
Meteorological Administration (SMA) reported an updated status of
FY-1B as of June 4, 1991. In early May 1991, the attitude of
FY-1B was re-established but was shortly lost again. Utilizing
the magnetometer controls, and testing throughout May, SMC has
been able to gain attitude control but finds intermittent
computer problems result in loss of control. This problem is
minimized by cutting of the automated magnetic control system
beyond China's monitoring region. Therefore, on orbits covering
China attitude control is maintained, while "blind" orbits may
result in accumulated attitude errors. SMC feels that for most orbits
over the U.S., that the attitude of FY-1B should be "OK".
As of this writing, the HRPT is turned on and is broadcasting on
1704.5 MHZ. The APT is NOT on at this time. This configuration
"may last for some time". It was not indicated by SMC if or when
they will resume APT transmissions.
Congratulations to SMC and lets hope FY-1B can resume some sort
of "routine" observations.
Carl Staton
NOAA/NESDIS
EOF
Note: I have no additional info on the above. WA2ISE