Table 1
eROSITA observations of the four sub-fields of eFEDS.
| ObsID | Central RA | Central Dec | texp | Start time [UTC] | ∆α | ∆δ | |
|---|---|---|---|---|---|---|---|
| [deg] | [deg] | [s] | [arcsec] | [arcsec] | |||
| I | 300007 | 129.55 | +1.5 | 89642 | 2019–11–03T02:25:50 | 5.0 | –4.2 |
| II | 300008 | 133.86 | +1.5 | 89642 | 2019–11–04T04:05:52 | 5.0 | –3.2 |
| III | 300009 | 138.14 | +1.5 | 89642 | 2019–11–05T05:45:54 | 5.1 | –3.5 |
| IV | 300010 | 142.45 | +1.5 | 89642 | 2019–11–06T07:25:56 | 4.6 | –1.0 |
Notes. ∆α, ∆δ: the corrections that were applied to the raw attitude solutions for each ObsID in order to remove systematic linear offsets of derived X-ray source positions in right ascension (RA; α) and declination (Dec; δ), using the Gaia-unWISE AGN candidate catalogue of Shu et al. (2019) as an astrometric reference. See Sect. 3.1 for details.
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