(updated Feb 9, 2002)
Feb 9, 2002, 10:30AM PST:
All systems are working as planned. No problems. From
now on, we will reduce the number of announcements in
this list. For a detailed description of the passes please
check the HESSI Major Events
Feb 6, 2002, 5:15PM PST:
Soon the solid state recorder will be turned on. Downlink now
is 1Mbit per second. The cryocooler is operating at 85% of the
power. The particle detector is turned on
and working well.
Feb 5, 2002, 10:25 PM PST:
The cryocooler was turned on for the first time
Feb 5, 2002, 5:15 PM PST:
Everything is still hunky dory. The 2nd
pass went fine. We are within 5 degrees of the sun. Command uplink and
downlink is strong. Next big
events: crycooler turn-on (at about 8PM PST) and start spinning up.
Look at the HESSI Major Events
page for details about the passes.
Feb 5, 2002, 4:15 PM PST:
Feb 5, 2002, 4:07 PM PST:
From Brian Dennis, HESSI Mission Scientist:
I'm pleased to report that HESSI telemetry was picked up at Berkeley and
Wallops on the first orbit and that everything looks nominal. The solar
panels have deployed and the spacecraft is pointing close to the solar
direction. The orbit is very close to the nominal that
Peter Harvey gave in his
last email (see below) and the ground stations had no trouble picking up the
Feb 5, 2002, 3:50 PM PST:
The sun is aquired within 15
degrees. Solar panels are deployed. Everything is nominal. Next pass
at 4:11 PST.
HESSI LAUNCH SUCCESSFUL.
From Peter Harvey, Project Manager:
HESSI was successfully launched today 4:08 PM EST. Based
upon launch vehicle data, the orbit is approximately
586.85 x 600.24 km at 38.023 degrees inclination.
The speceraft telemetry was good all the way through
launch with no anomalies.
Feb 4, 2002:
Over the weekend, tests of the launch vehicle and spacecraft
were successful. We continued charging the battery in preparation
Today, we completed the Launch Readiness Review with all parties
giving the 'GO' for launch. Weather is also cooperating.