The German eROSITA Consortium (eROSITA-DE) makes public the observations obtained during the Calibration and Performance Verification (Cal-PV) program for which it holds data exploitation rights. Over one hundred individual pointing and field scans were performed with eROSITA as a prime instrument between mid-September and mid-December 2019 form part of the Cal-PV programme.
The eROSITA Early Data Release (EDR) consists of calibrated event files that contain the information generated by the cameras used during the Cal-PV observations. These event files are created by the eROSITA Science Analysis Software System (eSASS) pipeline after the received telemetry data from eROSITA of each observation has been re-formated, packaged, and archived by a pre-processor. Note that not all Cal-PV observations have been performed with all 7 eROSITA telescope modules and that only one event calibrated event list per observed field is released.
More specifically, the release calibrated event list of each Cal-PV observation contain photons:
flag=0xC000F000, i.e. good events from the nominal field of view, excluding bad pixels (click here for further information about flags);pattern=15, i.e. including single, double, triple and quadruple events (access here to learn more about pattern fractions).The general structure of the calibrated event files is described under eSASS products description in the Event file description section and its naming scheme is described in the Pipeline data product's file naming scheme section. Use the eSASS tasks to obtain individual camera event lists and to analyse the data (see Cookbook and eSASS task descriptions).
For practical purposes, the eROSITA-DE team has divided the Cal-PV observations into four categories:
Choosing a threshold of Galactic nH = 1x1021 leads the same classification of the Galactic and extragalactic fields.
All the EDR data can be retrieved by clicking the links below. Each observation comes with a validation report, which contains information about the target: coordinates, exposure time, used telescope modules, processing mode, type of observation, notes on observation features, etc. Users are strongly encouraged to read these reports and the corresponding documentation on this site before using the data.
If you are not sure if a given position in the sky is covered by any of the eROSITA-DE Cal-PV observations, use our Cone search tool.
| Field | Available catalogues | Number of observations | Obs. ID | R.A. / Dec. [deg] | Observation type |
|---|---|---|---|---|---|
| eFEDS* [1] | Yes | 4 | 300007 | 129.55 / 1.50 | Scan |
| 300008 | 133.86 / 1.50 | Scan | |||
| 300009 | 138.14 / 1.50 | Scan | |||
| 300010 | 142.45 / 1.50 | Scan | |||
| eta Cha | Yes | 1 | 300004 | 130.33 / -78.96 | Scan |
[1] On September 2021 it was discovered a calibration error in the photon arrival time correction (of 1 second) on approximately half of the TM6 data of eFEDS sub-field I before a malfunction. The error causes the photons to be projected onto the sky with an offset of ~13 arcsec on either side of the true source position, resulting in an elongation of the merged all camera PSF in the scanning direction in the affected area. The affected period spans from: UTC=2019-11-03 13:03:12.25 until UTC=2019-11-03 21:04:53.03. Users are advised to take this error into account. For more details check Brunner et al. 2021.
* Spectra and light curves of the sources in the eFEDS observation can be retrieved when using the cone search tool. Click here to access eFEDS images, exposure maps and background maps.
| Field | Available catalogues | Number of observations | Obs. ID | R.A. / Dec. [deg] | Observation type |
|---|---|---|---|---|---|
| LMC SN1987A | No | 4 | 700016 | 83.84 / -69.31 | Pointing / Calibration |
| 700161 | 83.84 / -69.31 | Pointing / Calibration | |||
| 700203 | 83.84 / -69.31 | Scan / Calibration | |||
| 700204 | 83.84 / -69.31 | Scan / Calibration | |||
| LMC N132D | No | 8 | 700156 | 81.26 / -69.64 | Pointing / Calibration |
| 700179 | 81.26 / -69.64 | Pointing / Calibration | |||
| 700182 | 80.51 / -69.85 | Pointing / Calibration | |||
| 700183 | 81.99 / -69.43 | Pointing / Calibration | |||
| 700184 | 80.69 /-69.38 | Pointing / Calibration | |||
| 700185 | 81.90 / -69.89 | Pointing / Calibration | |||
| 700201 | 81.26 / -69.64 | Scan / Calibration | |||
| 700202 | 81.26 / -69.64 | Scan / Calibration | |||
| PSR J0540-6919 | No | 1 | 700206 | 85.05 / -69.33 | Pointing |
| PSR J0537-6910 | No | 1 | 700205 | 84.44 / -69.17 | Pointing |
| PSR J0540 PSR J0537 | No | 1 | 700207 | 84.74 / -69.25 | Pointing |
| 1ES 0102-72 | No | 5 | 700001 | 16.01 / -72.03 | Pointing / Calibration |
| 700002 | 15.04 / -71.89 | Pointing / Calibration | |||
| 700003 | 16.99 / -72.170 | Pointing / Calibration | |||
| 700004 | 16.28 / -71.85 | Pointing / Calibration | |||
| 700005 | 16.42 /-71.76 | Pointing / Calibration |
| Field | Available catalogues | Number of observations | Obs. ID | R.A. / Dec. [deg] | Observation type |
|---|---|---|---|---|---|
| NGC 2516 | No | 2 | 700018 | 119.58 / -60.87 | Pointing / Calibration |
| 700019 | 119.58 / -60.87 | Pointing / Calibration | |||
| PSR B0656+14 | No | 1 | 300000 | 104.95 / 14.23 | Pointing |
| PSR 1509-58 | No | 2 | 900035 | 228.84 / -59.10 | Pointing |
| 900043 | 228.85 / -59.11 | Pointing | |||
| IGR J13020-6359 (2RXP J130159-635806) | No | 1 | 900033 | 196.00 / -63.97 | Pointing |
| IGR J16318-4848 | No | 1 | 900062 | 248.24 / -48.74 | Pointing |
| OAO 1657-415 | No | 1 | 900072 | 255.45 / -41.56 | Pointing |
| 1RXS J072025-312554 | No | 1 | 700007 | 110.10 / -31.43 | Pointing / Calibration |
| Vela SNR | No | 1 | 700039 | 132.19 / -45.61 | Pointing / Calibration |
| Puppis A | No | 1 | 700195 | 126.03 / -43.00 | Scan/Calibration |
| HR 3165 (zet Pup) | Yes | 1 | 700167 | 120.90 / -40.00 | Pointing / Calibration |
| Crab (I, II, III, IV) | No | Several | 900056 | 83.47 / 21.88 | Pointing |
| 900075-900182 | - | Pointing |
| Field | Available catalogues | Number of observations | Obs. ID | R.A. / Dec. [deg] | Observation type |
|---|---|---|---|---|---|
| RE J2334-471 | No | 2 | 700180 | 353.51 / -47.24 | Pointing / Calibration |
| 700181 | 353.76 / -47.526 | Pointing / Calibration | |||
| A3158 | No | 1 | 700177 | 55.73 / -53.63 | Pointing |
| A3266 | No | 1 | 700154 | 67.84 / -61.44 | Pointing |
| 1H0707 | No | 1 | 300003 | 107.17 / -49.55 | Pointing |
| NGC 7793 P13 | No | 1 | 300011 | 359.46 / -32.62 | Pointing |
| 47 Tuc (NGC 104) | No | 8 | 700011 | 5.52 / -71.98 | Pointing / Calibration |
| 700012 | 6.53 / -72.17 | Pointing / Calibration | |||
| 700013 | 6.33 / -71.93 | Pointing / Calibration | |||
| 700014 | 5.71 / -72.24 | Pointing / Calibration | |||
| 700163 | 6.53 / -72.18 | Pointing / Calibration | |||
| 700173 | 5.52 / -71.98 | Pointing / Calibration | |||
| 700174 | 6.53 / -72.18 | Pointing / Calibration | |||
| 700175 | 6.33 / -71.92 | Pointing / Calibration | |||
| TGUH2213P1 (Dark Cloud) | No | 1 | 300017 | 285.59 / -37.12 | Pointing |
| A3391/A3395 | No | 4 | 300014 | 96.71 / -54.07 | Pointing |
| 300005 | 96.71 / -54.07 | Scan | |||
| 300006 | 96.71 / -54.07 | Scan | |||
| 300016 | 96.71 / -54.07 | Scan | |||
| 1RXS J185635-375433 | No | 1 | 700008 | 284.15 / -37.91 | Pointing / Calibration |
| 3C390.3 | No | 4 | 900060 | 281.54 / 79.87 | Pointing |
| 900068 | 281.50 / 79.88 | Pointing | |||
| 900069 | 281.49 / 79.89 | Pointing | |||
| 900070 | 281.48 / 79.89 | Pointing |