eROSITA visibility / survey scanning calculator


Visibility tool uses SRG long-term orbit file and 1h timesteps, minor changes for updated trajectories. Valid for pointings (ICRS/J2000 coordinates), repeats approximately annually.
Maximum SC_Z  –  Sun angle:   20 deg  (70 ≤ SC_X vs. Sun ≤ 110 deg)


Visibility check interval:  2022-01-01 – 2023-01-01

eRASS survey scans use month plan + long-term projection.


Enter coordinates of your target
  - Equ. (deg or h m s / d m s) or Ecl./Gal. (deg)


RA / Lon. DEC / Lat.


Input coords.      


Query Simbad


Object