Target candidates

The following table contains a list of candidate celestial targets to be used for eROSITA commissioning and in-orbit calibration (maybe also/instead for performance verification).
The images were extracted from various archives using the skyview tool.
The overview is a 6.3 degree field in galactic coordinates from the ROSAT PSPC all-sky survey, with an inner ring of 30.5 arcmin radius indicating the eROSITA FOV, a ring with radius 110 arcmin where single reflection arcs at the edge of the FOV may occur from bright sources therein, and with 190 arcmin radius where faint arcs at the center of the FOV may occur.
All other images are of 61 arcmin size and in equatorial coordinates:
•  RASS: ROSAT PSPC all-sky survey
•  PSPC: ROSAT PSPC pointed observations
•  HRI: ROSAT HRI pointed observations
•  DSSr: Digitized Sky Survey 2, red
•  Wise-3.4: Wide-field Infrared Survey Explorer, 3.4 micron
•  Wise-4.6: Wide-field Infrared Survey Explorer, 4.6 micron
•  2MASS-J: Two Micron All Sky Survey, 1.25 micron
•  2MASS-K: Two Micron All Sky Survey, 2.2 micron
The visiblity has been computed assuming an allowed solar aspect angle range of 90 ± 20 degrees, for the period 01-JUL-2019 to 30-JUN-2020 (launch, commissioning, calibration, performance verification, first survey, re-calibration).

The strategy and plan for commissioning and in-orbit calibration is described in document eRO-MPE-PL-55-01. There is an apdate in preparation to be issued by the end of October 2016 including the comments made during the eROSITA_DE Consortium Meeting at AIP.
An overview of the visibility is available in PDF format (prepared by J.Robrade).
The colour coding of the target name indicates the calibration subject :

This page makes use of NASA's SkyView facility (http://skyview.gsfc.nasa.gov) located at NASA Goddard Space Flight Center.
This page makes use of the ROSAT Data Archive of the Max-Planck-Institut für extraterrestrische Physik (MPE) at Garching, Germany.
This page makes use of data products from the DSS2 red survey. The Digitized Sky Surveys were produced at the Space Telescope Science Institute under U.S. Government grant NAG W-2166. The images of these surveys are based on photographic data obtained using the Oschin Schmidt Telescope on Palomar Mountain and the UK Schmidt Telescope.
This page makes use of data products from the Wide-field Infrared Survey Explorer, which is a joint project of the University of California, Los Angeles, and the Jet Propulsion Laboratory/California Institute of Technology, funded by the National Aeronautics and Space Administration.
This page makes use of data products from the Two Micron All Sky Survey, which is a joint project of the University of Massachusetts and the Infrared Processing and Analysis Center, funded by the National Aeronautics and Space Administration and the National Science Foundation.
Last update · Sun March 03 08:12:45 CEST 2019 · mjf