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The modified Ada code was loaded onto the MSSL engineering model. The ITOS proc hehinit was used to place the ICU in Idle. The ITOS proc ncr132 was run. This performs a PT exposure in which the slew is to 1 degree away from the target position given in the FONEXTOBSINFO message. As expected, the error message NOT_AT_PREDICTED_POSITION was issued and this eventually le to the ICU being placed in a Safe state

APID 373 ICU     pkg=dc evt=79 DCS Starting RTS                  0014 0000 0000   process_slew_warn                              Pkt 2004-09-22 00:04:05.91 \/U
APID 373 ICU     pkg=dc evt=78 Switching RTS                     0302 0000 0000   do_slew                                        Pkt 2004-09-22 00:04:06.55 \/U
APID 373 ICU     pkg=da evt=15 Already at Requested HV           0001 0000 0000   Cathode                                        Pkt 2004-09-22 00:04:08.61 \/U
APID 38f DPU     Ack/Nack  ID 0x0c0f ACK Stop Mode                                                                               Pkt 2004-09-22 00:04:08.82 \/U
APID 385 DPU     Mode Cmpl ID 0x0c05 Mode=Idle            SubMode=none             Mode compltn NOT USE                          Pkt 2004-09-22 00:04:08.85 \/U
APID 373 ICU     pkg=5c evt=41 State Transition Complete         0002 0000 0000   SLEW                                           Pkt 2004-09-22 00:04:09.04 \/U
APID 373 ICU     pkg=24 evt=57 FONEXTOBSINFO Processing Stat     0178 0000 0001                                                  Pkt 2004-09-22 00:04:11.22 \/U
APID 373 ICU     pkg=da evt=15 Already at Requested HV           0003 0654 0000   MCP23                                          Pkt 2004-09-22 00:04:13.53 \/U
APID 373 ICU     pkg=da evt=15 Already at Requested HV           0002 0262 0000   MCP1                                           Pkt 2004-09-22 00:04:13.70 \/U
APID 373 ICU     pkg=24 evt=53 Automatic State Trans'n Req'd     0326 0002 00aa                                                  Pkt 2004-09-22 00:04:14.12 \/U
APID 373 ICU     pkg=dc evt=78 Switching RTS                     0326 0000 0000   slew_to_pt                                     Pkt 2004-09-22 00:04:14.14 \/U
APID 3a2 ICU     pkg=24 evt=dc Catalogue Star                    RA=2802 Dec=08e4 m=0065 Dist=000f Col=0004 Area=2c9d Offs=569b  Pkt 2004-09-22 00:04:16.28 \/U
APID 3a2 ICU     pkg=24 evt=dc Catalogue Star                    RA=27f1 Dec=08f7 m=006c Dist=000d Col=0007 Area=2c9d Offs=4d88  Pkt 2004-09-22 00:04:16.32 \/U
APID 3a2 ICU     pkg=24 evt=dc Catalogue Star                    RA=27df Dec=08f0 m=005c Dist=0006 Col=0001 Area=2c9d Offs=438f  Pkt 2004-09-22 00:04:16.42 \/U
APID 3a2 ICU     pkg=24 evt=dc Catalogue Star                    RA=27dd Dec=08ec m=006d Dist=0005 Col=000e Area=2c9d Offs=4293  Pkt 2004-09-22 00:04:16.43 \/U
APID 373 ICU     pkg=40 evt=67 FW at Requested Position          0005 03bb 03bb                                                  Pkt 2004-09-22 00:04:22.90 \/U
APID 373 ICU     pkg=da evt=15 Already at Requested HV           0003 0654 0000   MCP23                                          Pkt 2004-09-22 00:04:24.60 \/U
APID 373 ICU     pkg=da evt=15 Already at Requested HV           0002 0262 0000   MCP1                                           Pkt 2004-09-22 00:04:24.87 \/U
APID 3c0 ICU TDR pkg=24 err=4e Not at Predicted Position         0001 27e7 0927                                                  Pkt 2004-09-22 00:04:41.35 \/U
APID 373 ICU     pkg=24 evt=ff Running Recovery RTS              0011 244e 0001   gotosafe                                       Pkt 2004-09-22 00:04:41.00 \/U
APID 375 ICU*ERR*pkg=24 err=4e Not at Predicted Position         0001 27e7 0927                                                  Pkt 2004-09-22 00:04:41.35 \/U
APID 373 ICU     pkg=dc evt=70 DCS Aborting                      0326 0000 0000   slew_to_pt                                     Pkt 2004-09-22 00:04:41.45 \/U
APID 373 ICU     pkg=dc evt=78 Switching RTS                     0011 0000 0000   gotosafe                                       Pkt 2004-09-22 00:04:41.47 \/U

The ITOS proc ncr132 was then run again, but with the ICU still in the Safe state. As required, the error message NOT_AT_PREDICTED_POSITION was not issued.

APID 373 ICU     pkg=dc evt=79 DCS Starting RTS                  0014 0000 0000   process_slew_warn                              Pkt 2004-09-22 00:00:07.11 \/U
APID 373 ICU     pkg=dc evt=78 Switching RTS                     0302 0000 0000   do_slew                                        Pkt 2004-09-22 00:00:07.69 \/U
APID 373 ICU     pkg=dc evt=83 DCS Exiting RTS                   0302 0000 0000   do_slew                                        Pkt 2004-09-22 00:00:09.63 \/U
APID 373 ICU     pkg=24 evt=57 FONEXTOBSINFO Processing Stat     0178 0000 0001                                                  Pkt 2004-09-22 00:00:12.49 \/U

-- HowardHuckle - 19 Apr 2005

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Topic revision: r5 - 2006-04-26 - HowardHuckle
 
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