Quasar-17 (USA-227) (NROL-27)

Launch Success

Liftoff Time (GMT)

23:38:00

Friday March 11, 2011

Watch Replay

Official Livestream

Mission Details

Read Article

Quasar-17 (USA-227) (NROL-27)

Wiki

The third generation of Quasar satellites, also known as SDS-3, represents an advancement in the Satellite Data System (SDS) developed by the United States Air Force. These satellites continue the role of facilitating communication relay for real-time data from US reconnaissance satellites and supporting communication needs for USAF aircraft and ground stations. While specific technical details remain classified, SDS-3 likely incorporates improvements in technology, potentially enhancing data transmission rates, communication reliability, and overall performance.

Geosynchronous Orbit

1 Payload

Rocket

Retired
Delta IV Medium+ (4,2)

Active 2002 to 2019

United Launch Alliance logo

Agency

ULA

Price

$164.00 million

Rocket

Height: 62.5m

Payload to Orbit

LEO: 10,440 kg

GTO: 6,390 kg

Liftoff Thrust

4,895 Kilonewtons

Fairing

Diameter: 4m

Height: 11.75m

Stages

2

Strap-ons

2

Launch Site

SLC-37B

Cape Canaveral SFS, Florida, USA

Fastest Turnaround

66 days 5 hours

Stats

Delta IV Medium


11th

Mission

1st

Mission of 2011

United Launch Alliance


48th

Mission

3rd

Mission of 2011

2011


12th

Orbital launch attempt