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News
/ Announcements
07/30/2001
GOES-M Update
Our fourth Apogee Maneuver Firing (AMF) #4 was successfully executed
early this morning at 4:00am EDT. The burn lasted 11 minutes and 10
seconds. The Main Spacecraft Thruster (MST) flange temperature reached
253 degrees, 5 degrees below the abort criteria limit. The flange
temperature profile during this burn was nearly identical to the first
three AMFs. Following this maneuver the spacecraft was configured
back to a normal sun acquisition mode and will remain in this mode
until the next maneuver. All subsystems are safe and remain well within
limits. The maneuver raised perigee approximately 2861 km and increased
the orbital period to approximately 16 hours.
A total of 5 AMFs remain in order to achieve geosynchronous orbit.
The next maneuver (AMF#5) is planned for Tuesday, July 31, at 11:00am
EDT (DOY 212 @ 1500z), with a burn duration of 670 seconds.
Spacecraft Orbit Parameters
Inclination = 7.99 degrees
Apogee = 48479 km
Perigee = 15261 km
Orbital Period = 15.72 hours
SPACECRAFT CONFIGURATION:
AOCE 1 on
DIRA 2(gyros) on
Coarse Analog Sun Sensor (CASS) 1 on
Digital Sun Sensor (DSS) 1 on
Earth Sensor (ES) 1 on
EPS/HEPAD on
Side-A thrusters selected
Normal Sun Acquisition Mode
Outer panel Solar Array Deployed
Trim Tab at 0 degrees
SIGNIFICANT EVENTS TIMELINE:
AMF #5: Tuesday, July 31, at 11:00am EDT (DOY 212 @ 1500z)
AMF #6: Friday, August 3, at 8:13am EDT (DOY 215 @ 1213z)
AMF #7: Sunday, August 5, at 10:31pm EDT (DOY 217 @ 0231z)
AMF #8: Tuesday, August 7, at 1:51pm EDT (DOY 219 @ 1751z)
AMF #9: Thursday, August 9, at 2:14pm EDT (DOY 221 @ 1814z)
AAM: Saturday, August 11, at 9:26am EDT (DOY 223 @ 1326z)
MBSA:
Phase 1- Sunday, August 12, at 9:05am EDT (DOY 224 @ 1305z)
Phase 2- Sunday, August 12, at 10:00am EDT (DOY 224 @ 1400z)
DIPOLE: Monday, August 13, at 6:34am EDT (DOY 225 @ 1034z)
WH+SL:
L2 Wheel Spin-Up- Tuesday, August 14, at 5:20pm EDT (DOY 226 @ 2150z)
Solar Sail Deploy- Tuesday, August 14, at 8:07pm EDT (DOY 226 @ 0007z)
TMF #1: Saturday, August 18, at 9:00pm EDT (DOY 230 @ 0100z)
TMF #2: Sunday, August 19, at 8:58am EDT (DOY 231 @ 1258z)
TMF #3: Saturday, August 21, at 8:52pm EDT (DOY 233 @ 0052z)+
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