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GRB 220218A — Source 1 (SWIFT J085504.9+315147)

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Image of the XRT detection

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Spectrum

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Source details
Rank/Classification: 3: Uncatalogued X-ray source
RA (J2000):08h 55m 04.94s (= 133.77060°)
Dec (J2000):+31° 51′ 48.0″ (= +31.8633°)
Error (radius, 90%):7.3″
Detection flag:Good
XRT exposure:12.7 ks (vignetting corrected)
Peak rate:3.2 (+1.4, -1.1) ×10-3 ct s-1
Peak flux:1.4 (+0.6, -0.5) ×10-13 erg cm-2 s-1
Mean rate:2.6 (+0.7, -0.6) ×10-3 ct s-1
Mean flux:1.12 (+0.30, -0.24) ×10-13 erg cm-2 s-1
Has spectral fit?Yes
NH 2.18 × 1020 cm-2
Γ 1.33
Database ID:753
Possible issues:
Optical Loading: No warning (automatic)
Stray Light: No warning (automatic)
Extended Emission: No warning (automatic)
Catalogue information
Known X-ray emitter?No. Get XMM upper limit
Rass upper limit20.050 ct s-1
Obs rate/Rass UL≤0 σ
Fading? No (≤1-σ significance).
Near 2MASS source? No
Near SIMBAD source?No.
High proper motion star?No.
Catalogue SearchCone search radius 21″ Vizier | Simbad | NED | X-ray master | LSXPS | 3XMM-DR5

Notes
All XRT count rates and fluxes are 0.3—10 keV
1Catalogued count-rates have been converted to XRT equivalents.
2Catalogued upper limits and fluxes have been converted to the XRT equivalent using the automatic power-law spectral fit described above.