ASTPOL


This process is a file poller process that serves as the interface between the OMS Pipeline and the Astrometry Pipeline. Its purpose is to poll the OMS_ASTDATA_DIR to find corresponding pairs of astrometry .AKX and .ARX files that have been generated by the OMS Pipeline OMSANL process. The .AKX and .ARX files contain astrometry header keywords and raw telemetry data respectively.

When a .AKX/.ARX file pair is found, the ASTPOL process will do the following:

  1. create an OSF for the file pair
  2. create an observation trailer file
  3. append an "_proc" to the names of the .AKX and .ARX files
  4. set the OSF to trigger the SS_AST process
    1. ASTPOL Process Modes

      ASTPOL Process I/O

             INPUT:
                OMS_ASTDATA_DIR: F*M.akx - Astrometry Header Keywords Files
                                 F*M.arx - Astrometry Telemetry Data Files  
      
             OUTPUT:
                OMS_ASTDATA_DIR: F*M.akx_proc - Astrometry Header Keywords Files
                                 F*M.arx_proc - Astrometry Telemetry Data Files  
                                 F*M.tra - Astrometry Observation Trailer Files  
      
      

      ASTPOL Process Error Handling

      Any errors that occur while polling for pairs of .AKX and .ARX Files will cause the offending OSF to be set to "F" in the AP stage column. Error messages are also posted to the ASTPOL Process Log File in the OPUS_HOME_DIRand in observation trailer files in the OMS_ASTDATA_DIR