Astronomical Processing

Finally, a few additional commands are used for dedicated processing :

• IRAS  plots on an astronomical map the IRAS point sources.
• PSC_IRAS locates and lists characteristic of IRAS point sources  
• ASTROMETRIC  finds and plots on an astronomical map stars from an astrometric star catalog.

IRAS, PSC_IRAS and ASTROMETRIC work only if if the corresponding catalogs are kept on line. The IRAS and PSC_IRAS commands require one big table (14 Kblocks) to be present somewhere on the disk under the logical name PSC_COMPACT, and possibly a big direct access file (40 Kblocks) under the logical name PSC_IRAS_EQU.

In addition, a separate task working either on disk file or on tape can be used, the task PSC_IRAS.