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NOAA 14 MSU Subsystem Summary

Component Status:

ANTENNAMicrowave Sounding UnitYellow
CHANNEL R1Radiometric Channel R1, 50.30 GHzGreen
CHANNEL R2Radiometric Channel R2, 53.74 GHzGreen
CHANNEL R3Radiometric Channel R3, 54.96 GHzGreen
CHANNEL R4Radiometric Channel R4, 57.95 GHzGreen
SCAN MOTORMicrowave Sounding Unit Scan MotorYellow

Subsystem History:

Date Time Component Description
05/15/200718:18:00SCAN MOTORHigh temperature saftey macro was initiated to turn off the MSU scan motor.
05/07/200709:00:00SCAN MOTOR7 May 2007 scan mechanism began to behave anomalously. The overall scanner position data maintained a pattern similar to its pre-anomaly pattern, but it became more erratic. It also covered a slightly larger range than it had pre-anomaly.
09/28/200617:03:00 Major spacecraft attitude perturbation resulted in autonomous battery undervoltage safing macro implementation turning off MSU.
03/20/199700:00:00SCAN MOTORMSU Macro loaded to turn off scanner if DICKIE1 temp exceeds 24 degs.
03/30/199500:00:00ANTENNAMSU S/W patched to detect stuck antenna and turn scanner off for 6 secs. Macro to turnoff scanner if temp >22 degs
03/03/199500:00:00SCAN MOTORMSU scanner ceased. Digital encoder failed, Turned OFF 3/15/95
12/30/199410:36:00CHANNEL R4On Orbit
12/30/199410:36:00CHANNEL R3On Orbit
12/30/199410:36:00CHANNEL R2On Orbit
12/30/199410:36:00CHANNEL R1On Orbit
12/30/199410:36:00SCAN MOTOROn Orbit
12/30/199410:36:00ANTENNAOn Orbit