The blog Modern Survival published a list of the UARS fragments that are likely to reenter the atmosphere:

(1) HGA gimbal and reten. (Titanium) 59 pounds impacting at 99 miles per hour

(4) Forward bulkhead fitting (Titanium) 55 pounds impacting at 177 miles per hour

(1) SSPP gimball (Titanium) 134 pounds impacting at 130 miles per hour

(1) SSPP structure (AL-2024-T8) 348 pounds impacting at 99 miles per hour

(4) MMS fuel tanks (Titanium) 11 pounds impacting at 59 miles per hour

(3) MMS MPS batteries (SSteel 304L) 101 pounds impacting at 146 miles per hour

(4) Reaction wheel rims (SSteel 304L) 4 pounds impacting at 240 miles per hour

(1) FSS housing (Beryllium) 7 pounds impacting at 175 miles per hour

(2) FHST bracket (Beryllium) 2 pounds impacting at 40 miles per hour

(2) G.F. abutment plate (Titanium) 4 pounds impacting at 30 miles per hour

(2) G.F. base plate (Titanium) 11 pounds impacting at 81 miles per hour

(1) G.F. extension (Titanium) 1 pound impacting at 47 miles per hour


About the author

Andrea Gini

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Andrea Gini is a content strategy consultant specialized in companies of the space sector. He is founder of Space Safety Magazine, where he held the position of Editor-in-Chief until March 2015. Between 2011 and 2013 he worked in the European Space Agency in the Independent Safety Office, which overviews the utilization of the International Space Station. He previously worked as Software Developer, IT Consultant, and trainer of Java-related technologies. Andrea holds a BSc and an MSc in computer science from the University of Milano, a Master in Communication of Science from the International School for Advanced Studies of Trieste and a MSc in Space Studies from the International Space University.