NOSS-3 5A & 5B (USA-229) (NROL-34)

Launch Success

Liftoff Time (GMT)

04:24:00

Friday April 15, 2011

Watch Replay

Official Livestream

Mission Details

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NOSS-3 5A & 5B (USA-229) (NROL-34)

Wiki

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

Rocket

Retired
Atlas V 411

Active 2006 to 2020

United Launch Alliance logo

Agency

ULA

Price

$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

Launch Site

SLC-3E

Vandenberg SFB, California, USA

Fastest Turnaround

32 days 16 hours

Stats

Atlas V


25th

Mission

2nd

Mission of 2011

United Launch Alliance


49th

Mission

4th

Mission of 2011

2011


15th

Orbital launch attempt