NASA Re-entry and Risk Assessment for UARS

 

NASA published on its website a Re-entry and Risk Assessment for the Upper Atmosphere Research Satellite (UARS), which is expected to reenter the atmosphere in late September or early October.

The official source of reentry predictions for uncontrolled space objects is USSTRATCOM’s Joint Space Operations Center (JSpOC).

TIP messages provide the best estimates of reentry time and location but have large uncertainties. Even at T – 2 hours, the uncertainty of reentry time is on average +/- 25 minutes for nearly circular orbits. This equates to +/- 12,000 km on the Earth.

The document can be downloaded from NASA website, along with a Frequently Asked Question (FAQ) on space debris.


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About the author

Andrea Gini

Andrea Gini

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Andrea Gini is a scientific journalist and a professional of the space industry, working as a contractor on ISS Payload Safety. He is the Editor-in-chief of the Space Safety Magazine. Andrea is also Chairman of the Information and Communication Committee of the International Association for Advancement in Space Safety (IAASS), publisher of the Space Safety Magazine, and he is responsible for the communication strategy of the association, Andrea holds a BSc and an MSc in computer science from the University of Milano, a Master in scientific journalism from the International School for Advanced Studies of Trieste and a MSc in Space Studies from the International Space University.