NEXT SPACEFLIGHT

Status

Success

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

Launch Time
Fri Mar 11, 2011 23:38 UTC

Rocket

Delta IV Medium+ (4,2)
Image Credit: ULA
ULA
Status: Retired
Price: $164.0 million
Liftoff Thrust: 4,895 kN
Payload to LEO: 10,440 kg
Payload to GTO: 6,390 kg
Stages: 2
Strap-ons: 2
Rocket Height: 62.5 m
Fairing Diameter: 4.0 m
Fairing Height: 11.75 m

Mission Details

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

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.

Payloads: 1
Molniya Orbit

Location

SLC-37B, Cape Canaveral SFS, Florida, USA

Stats

2011

12th orbital launch attempt

United Launch Alliance

48th mission
3rd mission of 2011
47th successful mission
43rd consecutive successful mission

Delta IV Medium

11th mission
1st mission of 2011
11th successful mission