The Spectr-Roentgen-Gamma (SRG) is a Russian-German high energy astrophysics mission launched on July 13, 2019 from the Baikonur Cosmodrome. After travelling to the Earth-Sun L2 Lagrange point, the instruments began the first of eight planned sky surveys in December 2019. Mission plans call for four years of operations in scanning mode, building all-sky maps over the course of six months. Once completed, the observatory with shift to pointed observations at specific targets of interest. The original mission calls for seven years of operations.
The mission occasionally appears as “Spectrum X-Gamma” (SXG) in English. X-rays are often refered to as Röntgen or Roentgen rays in other countries (and in the case of this mission specifically, in Russia and Germany) named after their discoverer Wilhelm Conrad Röntgen.
Despite the “Gamma” appelation in the mission name, the satellite carries no gamma-ray instrument. The reference was retained for historical reasons, as the mission’s earlier proposals called for additional gamma-ray detectors.
Mission CharacteristicsLifetime : December 8, 2019–present
Energy Range : 0.2–30 keV
Special Features : X-ray mirror optics combine moderate resolution imaging with a very wide field of view, with all-sky maps to be produced over a wide range in the soft to hard X-ray range.
HEASARC Home | Observatories | Archive | Calibration | Software | Tools | Students/Teachers/Public
Last modified: Friday, 26-Aug-2022 19:42:47 EDT