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SVOM trigger GRB 250403A
Source 11 (SWIFT J125752.5-242614)

Image of the XRT detection

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

Image of the LC

Spectrum

Image of the spectrum
Source details
Rank/Classification: 3: Uncatalogued X-ray source
RA (J2000):12h 57m 52.53s (= 194.46888°)
Dec (J2000):-24° 26′ 14.5″ (= -24.4374°)
Error (radius, 90%):6.3″
Detection flag:Poor
XRT exposure:401 s (vignetting corrected)
Peak rate:0.032 (+0.015, -0.012) ct s-1
Peak flux:1.4 (+0.6, -0.5) ×10-12 erg cm-2 s-1
Mean rate:0.032 (+0.015, -0.012) ct s-1
Mean flux:1.4 (+0.6, -0.5) ×10-12 erg cm-2 s-1
Has spectral fit?Yes
NH 7.27 × 1022 cm-2
Γ 7.19
Database ID:325
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 limit20.11 ct s-1
Obs rate/Rass UL≤0 σ
Fading? ≤3-σ signifance.
Near 2MASS source? Yes, 1 match. Show details.
Near SIMBAD source?No.
High proper motion star?No.
Catalogue SearchCone search radius 18″ 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