Robuta

https://heasarc.gsfc.nasa.gov/docs/cgro/timeline/index.html CGRO SSC Observation Timelines ssc observation timelines https://heasarc.gsfc.nasa.gov/docs/cgro/cgro/egret_th3C279.html CGRO SSC Time History of 3C279 Gamma-Ray Emission in June of 1991 history of https://heasarc.gsfc.nasa.gov/docs/cgro/cgro/release.html CGRO SSC CGRO Release ssc release https://heasarc.gsfc.nasa.gov/docs/cgro/cossc/egret/ CGRO SSC The Energetic Gamma Ray Experiment Telescope (EGRET) gamma ray ssc energetic experiment telescope