Delta IV launch put GPS II F3 satellite in correct orbit but only after compensating for low thrust

by | Oct 9, 2012 | commercial launch services, Satellites | 0 comments

A Delta IVM+ 4,2 launch was reported as placing the GPS II F3 satellite into the correct orbit for the US Air Force on 4 October .  However, it has later been announced that the launch vehicle’s second stage RL-10 engine had a lower than expected thrust which had to be compensated during the three burn sequence.  An investigation is now taking place into the cause of the launch anomaly.

About Seradata

Seradata produce the renowned SpaceTrak Launch & Satellite Database. Trusted by 100 of the world’s leading Space organisations, SpaceTrak is a fully queryable database used for market analysis, failure/risk assessment, spectrum analysis and space situational awareness (SSA).

For more information go to

Related Articles

On a lighter note: Don’t follow that star to Dusseldorf as it might be heading to Scotland

There is an amusing scene in one the comedy film follow-ons to the BBC Steptoe and Son comedy television series Read more

Satellites key in targeting and guiding “stand off” missiles in Syria strikes by USA, UK and France

While more limited and less destructive than originally projected, US, UK and French missile strikes on Syria – or more specifically Read more

Lockheed Martin receives order for two more GPS 3A satellites worth US$395m

The United States Air Force (USAF) has exercised the fourth two-satellite option from its original GPS 3A block order, it was announced on Read more

GPS IIIA-2 satellite launch order goes to SpaceX Falcon 9

While the competition for its launch in the end came to nothing after ULA pulled out, the first GPS satellite Read more

Delta IV rocket puts GPS IIIF-6 into orbit

A Delta IVM+ 4,2 launch vehicle, operated by the United Launch Alliance (ULA) successfully put the navigation satellite GPS IIIF-6 Read more

GPS IIF-5 navsat is launched on a Delta IV rocket

The US Air Force successfully added to its GPS Navigation satellite constellation with the successful launch of GPS IIF-5.  The Read more

Anti-gravity and all that easy stuff

Hyperbola is a technology orientated spaceflight blog by Flight's technical reporter Rob Coppinger

RUAG gets ULA business to give rockets dual launch capability

As it presses forward with a plan to give its Atlas V and Delta IV launch vehicles dual launch capabilty, Read more