NOAA Office of Satellite and Product Operations

NOAA 18 CCS Subsystem Summary

Component Description Status
CIU Controls Interface Unit Green
CPC1 Controls Power Converter 1  
CPC2 Controls Power Converter 2  
CPU 1 Central Processing Unit 1 Green
CPU 2 Central Processing Unit 2 Green
CXU CIU Annex Green
DAU1 Decription Authentication Unit -1  
DAU2 Decription Authentication Unit -2  
GRD1 GSTDN Receiver/demodulator #1  
GRD2 GSTDN Receiver/demodulator #2  
RXO 1 Primary Redundant Crystal Oscillator Green
RXO 2 Backup Redundant Crystal Oscillator Green
SCU Signal conditional unit Green

Subsystem History:

Date Time Component Description
10/8/2013 14:46:46   Deactivate 3 macros that are not longer needed once thruster firing has been disabled
01/16/2013 16:59:10   This activates the power toggle, Macro 10, and will leave the SBUV powered, which is the upper temp macro was previously enabled for protection
01/16/2013 16:58:50   This deactivates Macro 13
01/16/2013 16:57:56   Disable Macro 4B
01/16/2013 16:56:34   This will load MACRO 4C to the control and non control CPU
01/16/2013 16:54:45   This will load MACRO 4B to the control and non control CPU
01/03/2013 14:13:27   Determine which macro is currently active in the toggle by reviewing the current temperature of NSBUCMTR and the macro page to see what macro is active. If macro 15 is active perform this and the following command
01/03/2013 14:13:00   Load the new macro 13 to both the control and no control CPU
01/03/2013 14:11:10   Delete the current macro 13 from the non control CPU
01/03/2013 14:11:02   Delete the current macro 13 from the control CPU
10/18/2011 16:07:53   Loads safety macros for ESTX MIMU2 test (0043 - 0046)
09/19/2011 14:42:58   Load safety macros for ESTX MIMU1 Test (40, 41, 42, 47)
04/17/2011 15:42:50   Deactivate safety macros for BYAWERR
04/16/2011 22:27:23   Load and activate safety macros for BYAWERR
07/15/2008 15:34:00   Activate CPU Macro 11 - SBUV Motor Power Toggling Under Temperature Control
07/15/2008 15:32:05   Load CPU Macro 14 - SBUV Motor Turn Off at 40 C, activate CPU Macro 13.
07/15/2008 15:30:28   Load CPU Macro 13 - SBUV Motor Toggle On at 24 C, activate CPU Macro 14.
07/15/2008 15:28:32   Load CPU Macro 12 - SBUV Motor Turn Off at 40 C, activate CPU Macro 11.
07/15/2008 15:26:39   Load CPU Macro 11 - SBUV Motor Toggle On at 21 C, activate CPU Macro 12.
12/31/2005 23:30:00 CPU 2 Substract 1.5 second (1500 msecs) from spacecraft command clock CONTROL side to compensate for leap second on 1 Jan 06 and general drift throughout the year.
12/31/2005 22:30:00 CPU 1 Substract 1.5 second (1500 msecs) from spacecraft command clock NON-CONTROL side to compensate for leap second on 1 Jan 06 and general drift throughout the year.
07/20/2005 19:45:00   Removes previous CPU telemetry table change on SCP 1. (Error angles were replaced with MIMU raw telemetry)
07/19/2005 13:30:00   Replaces Euler attitude angle errors in SCP1 cpu telemetry table 1 with MIMU raw gyro data.
06/09/2005 12:00:00   Operational responsibility for N18 passes to NOAA from NASA
05/23/2005 15:21:00 RXO 1 RXO commanded to normal (primary selected).
05/20/2005 11:50:00 RXO 2 on orbit
05/20/2005 11:50:00 CIU on orbit
05/20/2005 11:50:00 CPU 1 on orbit, non control side
05/20/2005 11:50:00 CPU 2 on orbit, control side
05/20/2005 11:50:00 RXO 1 on orbit
05/20/2005 11:50:00 SCU on orbit
05/20/2005 11:50:00 CXU on orbit
05/20/2005 11:15:30   on orbit