rosat satellite ios app
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  • Bypass slow satellite tracking servers.
  • Receive re-entry estimates directly to your iPhone or iPad!
  • Receive news and notifications of important events as they happen.

ROSAT re-entry application for iPhone



application iphone ipad rosat satellite

ROSAT (ROentgen SATellite) was launched into space on the 1st of July 1990, with its main purpose being to perform an all-sky survey of extremely hot states of energy and matter such as neutron stars and black holes, by using its X-ray imaging telescope.
Doing so was to be the first time in history.

The satellite was originally designed for an 18 month mission which was extended due to its success, and was active for more than eight and a half years.

The mission ended and was finally shut down on the 12th February 1999 after failure of the last working imaging instrument was damaged by unintentionally pointing directly at the sun, the consequent damage being irreversible.

Media Release

Download the latest media release here

For app support please email us

Re-entry of ROSAT

The Earth's upper atmosphere causing friction has resulted in the satellite losing altitude over time, and with no propulsion system on board to guide it, the satellite cannot be controlled on it's re-entry path to Earth.

It's estimated that up to 30 individual pieces of debris totalling 1.6 tonnes may survive re-entering our atmosphere, and potentially make it to Earth (heads up!). The probability of someone getting injured by debris is 1 in 2,000, calculated as one person that could be injured for every 2000 de-orbit events of this kind.

The current estimated date of re-entry is likely to be within the coming weeks (late October 2011), but where it will land is unknown...

Why an App?





Every time the estimate changes, we feed it to the ROSAT Reentry App so you'll know when to LOOK UP!!!!

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