Editing Skylab 3 (section)

==S150 Galactic X-Ray Mapping==
[[File:S150GalacticX-RayMapping.jpg|thumb|right|S150 instrument for galactic X-Ray mapping, sent up with Skylab 3]]
The '''S150 X-ray experiment''' was sent up with Skylab 3. The 1,360&nbsp;kg [[X-ray astronomy satellite]] experiment was designed to look for soft [[X-ray background|galactic x-rays]]. Short missions had been done before, and S150 would be a longer project. S150 had a large soft x-ray detector, and was mounted atop the Saturn S-IVB upper stage. When released, S150 flew behind and below Skylab on 28 July 1973. The S150 experiment deployed after the Apollo capsule separated from the S-IVB stage. S150 had its own protective housing for the flight. The experiment on S150 ran for 5 hours, as its batteries allowed S150 to measure half of the sky. Experiment data was recorded on [[tape recorder]] and sent to ground stations when available. S150 was designed by [[University of Wisconsin]] scientists Dr. William L. Kraushaar and Alan Bunner. S150 could detect 40–100 angstrom photons.<ref>[https://nssdc.gsfc.nasa.gov/nmc/experiment/display.action?id=1973-050A-05 NASA, NASA Space Science Data Coordinated Archive Header Soft X-Ray Sky Survey]</ref><ref>{{cite web|title=Skylab's Astronomy and Space Sciences|url=https://ntrs.nasa.gov/api/citations/19790025947/downloads/19790025947.pdf|publisher=NASA|date=1979|access-date=November 12, 2022}}</ref><ref>{{cite web|url=https://imagine.gsfc.nasa.gov/observatories/history/missions/skylab.html |title=NASA, Skylab S150 X-ray Experiment|publisher=NASA|access-date=November 12, 2022}}</ref>