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Launch Success
Liftoff Time (GMT)
04:24:00
Friday April 15, 2011
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Official Livestream
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NOSS-3 (Naval Ocean Surveillance System), which is likely not the official designation, is the third generation of NOSS satellites, which are low orbit SIGINT satellites. In 2013, the designation Intruder leaked out. These satellites carry equipment to track ships and aircraft via their radio transmissions. Positions of the origin of the transmissions are determined by triangulation. Each launch consists of two satellites of similar size in the same orbit. Both satellites maneuver to stationkeep relative to one another.
Low Earth Orbit
2 Payloads
Agency
ULAPrice
$115.00 million
Rocket
Diameter: 3.81m
Height: 58.3m
Payload to Orbit
LEO: 12,030 kg
GTO: 5,950 kg
Liftoff Thrust
5,489 Kilonewtons
Fairing
Diameter: 4.2m
Height: 13.8m
Stages
2
Strap-ons
1
25th
Mission
2nd
Mission of 2011
49th
Mission
4th
Mission of 2011
15th
Orbital launch attempt