Status
Success
Rocket
Mission Details
NOSS-3 7A & 7B (USA-264) (NROL-55)
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.
Payloads: 2
Location
SLC-3E, Vandenberg SFB, California, USA
Stats
2015
61st orbital launch attempt
United Launch Alliance
101st mission
10th mission of 2015
100th successful mission
96th consecutive successful mission
Atlas V
58th mission
7th mission of 2015
57th successful mission
48th consecutive successful mission