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VERSION:2.0
PRODID:-//Padside//Padside//EN
X-WR-CALNAME:Padside
BEGIN:VEVENT
UID:launch-1287d8f4-004c-415c-83b3-c936a6bfc6e9@padside
DTSTAMP:20261016T113042Z
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 ellipti
 cal orbits they would move very slowly over the northern hemisphere for mo
 st of their orbital period\, allowing interception of microwave line-of-si
 ght communications beams. Since they would move slowly through the beams d
 uring their orbit\, a constellation of such satellites was required to mon
 itor Soviet communications throughout the day.
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