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Atlas V 511 | USSF-8
United Launch AllianceLaunch Successful

USSF-8

Atlas V 511

Historical mission record

This page records Atlas V 511 | USSF-8 and its reported outcome: Launch Successful. The date above is a historical record.

Source record updated . This is a source update, not a confirmed launch time.

Check the source: Atlas V USSF-8 ↗ · Launch Library ↗ · Flight Club ↗

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Mission status
Launch Successful

Status reported by the mission data provider.

LAUNCH SITECape Canaveral SFS, FL, USA

Mission

USSF-8 will launch two identical Geosynchronous Space Situational Awareness Program (GSSAP) satellites GSSAP-5 and GSSAP-6 directly to a near-geosynchronous orbit approximately 36,000 km above the equator. Data from the GSSAP will uniquely contribute to timely and accurate orbital predictions, further enabling space flight safety including satellite collision avoidance. Unique to this mission is the first and only planned flight of the Atlas V 511 configuration.

Launch vehicle
Atlas V 511
Mission type
Government/Top Secret
Destination orbit
Geosynchronous Orbit
Launch pad
Space Launch Complex 41
Provider
United Launch Alliance

The vehicle

Published configuration and flight history.

Atlas V 511
Launch vehicle

Atlas V 511

Atlas V is an expendable launch system in the Atlas rocket family. It was formerly operated by Lockheed Martin and is now operated by United Launch Alliance (ULA), a joint venture with Boeing. Each Atlas V rocket uses a Russian-built RD-180 engine burning kerosene and liquid oxygen to power its first stage and an American-built RL10 engine burning liquid hydrogen and liquid oxygen to power its Centaur upper stage. The RD-180 engines are provided by RD Amross, while Aerojet Rocketdyne provides both the RL10 engines and the strap-on boosters used in some configurations. The 511 version uses a 5m wide fairing, 1 solid rocket booster and one engine on the Centaur stage.

Height
58.3 m
Diameter
3.81 m
Stages
2
Recorded launches
1
First flight
2022-01-21

Recorded timing

This is a mission record, not an upcoming calendar appointment.

3h windowPublished target
WINDOW OPENS
WINDOW CLOSES

Target ·

The target marker shows its position within the published window. The schedule may change before launch.

Launch site & orbit

Cape Canaveral SFS, FL, USA

The mission in perspective

Launch site

DestinationGeosynchronous Orbit

Explore the launch pad on Earth using its published coordinates.

Explore Earth’s orbits
NASA Blue Marble map of Earth's continents and oceans
Geographic view · illustrative lightingNo live tracking or simulated ascent. NASA Blue Marble.

Coverage & sources

Links supplied by the mission data provider.
Coverage and times may change.

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