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SVOM trigger GRB 250901A
Source 1 (SWIFT J234444.0-154427)

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: 1: Transient source
RA (J2000):23h 44m 44.08s (= 356.18367°)
Dec (J2000):-15° 44′ 27.7″ (= -15.7410°)
Error (radius, 90%):3.9″
Detection flag:Good
XRT exposure:754 s (vignetting corrected)
Peak rate:0.24 (±0.05) ct s-1
Peak flux:1.02 (±0.23) ×10-11 erg cm-2 s-1
Mean rate:0.157 (±0.017) ct s-1
Mean flux:6.7 (±0.7) ×10-12 erg cm-2 s-1
The source is fading with 1.7-σ significance
Has spectral fit?Yes
NH 1.07 × 1021 cm-2
Γ 2.01
Database ID:392
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
LSXPS upper limit4.2×10-4 ct s-1
Obs rate/LSXPS UL4.4 σ
Rass upper limit20.064 ct s-1
Obs rate/Rass UL3.3 σ
Fading? ≤3-σ signifance.
Near 2MASS source? No
Near SIMBAD source?No.
High proper motion star?No.
Catalogue SearchCone search radius 11″ 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.