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VERSION:2.0
PRODID:-//Padside//Padside//EN
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UID:launch-1287d8f4-004c-415c-83b3-c936a6bfc6e9@padside
DTSTAMP:20260721T164958Z
DTSTART;VALUE=DATE:19971108
SUMMARY:Titan 401A Centaur | NROL-4
DESCRIPTION:Trumpet signal intelligence satellites were launched by Titan-
 4(01)A Centaur-T into highly elliptic Molniya-type orbits. In their ellip
 tical orbits they would move very slowly over the northern hemisphere for
  most of their orbital period\, allowing interception of microwave line-o
 f-sight communications beams. Since they would move slowly through the be
 ams during their orbit\, a constellation of such satellites was required 
 to monitor Soviet communications throughout the day.
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