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GRB 250717B — Source 1 (SWIFT J025624.8+262232)

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Image of the XRT detection

This source is detected in 1 block. Show all images.

Image of the LC

Spectrum

Image of the spectrum

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Source details
Rank/Classification: 3: Uncatalogued X-ray source
RA (J2000):02h 56m 24.88s (= 44.10367°)
Dec (J2000):+26° 22′ 32.8″ (= +26.3758°)
Error (radius, 90%):8.9″
Detection flag:Poor
XRT exposure:2.8 ks (vignetting corrected)
Peak rate:1.90 (+1.27, -0.91) ×10-3 ct s-1
Peak flux:8 (+5, -4) ×10-14 erg cm-2 s-1
Mean rate:1.90 (+1.27, -0.91) ×10-3 ct s-1
Mean flux:8 (+5, -4) ×10-14 erg cm-2 s-1
Has spectral fit?No
Database ID:1449
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 limit20.026 ct s-1
Obs rate/Rass UL≤0 σ
Fading? No (≤1-σ significance).
Near 2MASS source? Yes, 1 match. Show details.
Near SIMBAD source?No.
High proper motion star?No.
Catalogue SearchCone search radius 26″ 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 assuming a generic AGN spectrum:NH=3×1020 cm-2, Γ=1.7

2MASS objects near the source

ID Position Offset from
XRT source		 J H K