Project Updates

eROSITA was launched onboard the SRG satellite on July 13, 2019. It provides all-sky X-ray imaging at 0.3-8 keV with 15″-30″ angular resolution, and covers galactic longitudes 180 < l < 360. 

Calibration and Performance Verification Observations officially started on October 13, and were completed on December 8, 2019. The CalPV data release is planned (TBC). See below for approved eROSITA_DE PV observations.

The first eROSITA all-sky survey was completed in June 2020, revealing a spectacular vision of the hot and energetic universe. The result has created a new map for astronomers, with this new survey capturing over one million objects – far exceeding the number discovered by previous X-ray telescopes. See more information here.

At the end of 2022, the eROSITA (extended Roentgen Survey with an Imaging Telescope Array) instrument completed its fourth (out of eight) survey of the full sky at X-ray wavelengths. At the mission completion, eROSITA will have performed eight all-sky surveys. The existing eROSITA data already surpass those coming from previous all-sky X-ray surveys, having much greater depth, image quality, and spectral coverage. The eROSITA data offer the opportunity to study extremely energetic events across vast scales in the Universe, from accreting binary systems at stellar scales to 10-million-degree shocks driven by galaxy cluster mergers. 


  • Merging clusters A3391/3395 (2.5×2.5 deg2 scan; 100ks). Oct 7-8 and Oct 17
  • LMC N132D (Pointed, 48ks). Oct 10
  • NLSy1 1H0707-495 (Pointed; 40ks). Oct 11
  • Isolated NS, PSR B0656+14 (Pointed; 100ks), Oct 15
  • LMC SNR 1987A (Pointed, 80ks). Oct 19
  • Comet-C2018W2 (Pointed 50ks). Oct 24
  • TGUH2213P1 Dark Cloud (Pointed; 56ks), Oct 26
  • eFEDS mini survey (GAMA09; 120 deg2 scan 360ks). Nov 3-7
  • eta Chamaeleontis Star Cluster (5×5 deg2 scan; 150ks). Nov 17-18
  • NGC 7793 P13 ULX (Pointed; 60ks). Nov 19
The energetic universe as seen with the eROSITA X-ray telescope.
The energetic universe as seen with the eROSITA X-ray telescope. Image credit: Jeremy Sanders, Hermann Brunner and the eSASS team (MPE); Eugene Churazov, Marat Gilfanov (on behalf of IKI).