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GRB 250804B — Source 8 (SWIFT J024241.2-464400)

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Image of the XRT detection

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Image of the LC

Spectrum

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Source details
Rank/Classification: 3: Uncatalogued X-ray source
RA (J2000):02h 42m 41.22s (= 40.67175°)
Dec (J2000):-46° 44′ 00.9″ (= -46.7336°)
Error (radius, 90%):6.7″
Detection flag:Reasonable
XRT exposure:2.3 ks (vignetting corrected)
Peak rate:4.2 (+2.3, -1.7) ×10-3 ct s-1
Peak flux:1.8 (+1.0, -0.7) ×10-13 erg cm-2 s-1
Mean rate:4.2 (+2.3, -1.7) ×10-3 ct s-1
Mean flux:1.8 (+1.0, -0.7) ×10-13 erg cm-2 s-1
Has spectral fit?Yes
NH 2.20 × 1021 cm-2
Γ 2.50
Database ID:1462
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 limit20.024 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 20″ 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.