# ComPair Gamma-Ray Balloon Mission (SVS14354 - Before Thermal Vacuum Testing of ComPair)

Kierans prepares the instrument’s tracker for testing in a small thermal vacuum chamber at Goddard in this video. The first two shots show her opening the door to the chamber, which is used to test how the instrument works in temperatures from minus 76 degrees Fahrenheit (60 degrees below zero Celsius) to 86 F (30 C). The third shot shows Kierans and Sambid Wasti (Catholic University of America) moving the tracker into the chamber.Credit: NASA/Sophia Roberts

- Kind: Short
- Year: 2023
- Runtime: 1 min
- By: NASA's Scientific Visualization Studio - Jeanette Kazmierczak, Sophia Roberts, Aaron E. Lepsch
- Genres: Space
- Archive: [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:ComPair_Gamma-Ray_Balloon_Mission_(SVS14354_-_Before_Thermal_Vacuum_Testing_of_ComPair).webm)
- Licence or status: Public domain (as the archive states it)
- Credit: NASA's Scientific Visualization Studio - Jeanette Kazmierczak, Sophia Roberts, Aaron E. Lepsch
- Who can watch: Tweens profiles and older (the archive gives no rating; placed by Invisible Network from its collection and subjects)

[Watch now](https://invisiblenetwork.ai/watch/archive/commons/136992925?play=1)