Labels:book | bulletin board | lp | monitor OCR: IRAS ORBIT CHARACTERISTICS CIRCULAR NEAR -POLAR INCL INATION 900 KM ALTITUDE 14 REVS PER DAY SUN- SYNCHRONOUS TWILI IGHT CHILTON TWO CONTROL PASSES CENTER PER DAY AT CHILTON DATA RECEIVED FROM SATELLITE COMMANDS SENT TO SATELLITE ARCMIN PER SECOND SCAN RATE TELESCOPE FIELD OF VIEW LINATION TWILIGHT