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SVOM trigger GRB 250903A
Source 3 (SWIFT J234818.1-755114)

Image of the XRT detection

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

Image of the LC

Spectrum

Image of the spectrum

Enhanced position

Image of the UVOT image
Source details
Rank/Classification: 3: Uncatalogued X-ray source
RA (J2000):23h 48m 17.67s (= 357.07363°)
Dec (J2000):-75° 51′ 15.8″ (= -75.8544°)
Error (radius, 90%):8.0″ (enhanced position)
Detection flag:Good
XRT exposure:2.4 ks (vignetting corrected)
Peak rate:4.6 (+2.2, -1.7) ×10-3 ct s-1
Peak flux:2.0 (+0.9, -0.7) ×10-13 erg cm-2 s-1
Mean rate:4.6 (+2.2, -1.7) ×10-3 ct s-1
Mean flux:2.0 (+0.9, -0.7) ×10-13 erg cm-2 s-1
Has spectral fit?Yes
NH 4.38 × 1020 cm-2
Γ 1.85
Database ID:396
Things to check:
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 limit20.043 ct s-1
Obs rate/Rass UL≤0 σ
Fading? ≤3-σ signifance.
Near 2MASS source? Yes, 2 matches. Show details.
Near SIMBAD source?No.
High proper motion star?No.
Catalogue SearchCone search radius 24″ 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.

2MASS objects near the source

ID Position Offset from
XRT source		 J H K