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SVOM trigger GRB 250506A - Incorrect SVOM position
Source 1 (SWIFT J143833.8+291300)

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):14h 38m 34.04s (= 219.64184°)
Dec (J2000):+29° 13′ 02.7″ (= +29.2174°)
Error (radius, 90%):4.6″ (enhanced position)
Detection flag:Good
XRT exposure:1669 s (vignetting corrected)
Peak rate:0.029 (±0.007) ct s-1
Peak flux:1.3 (±0.3) ×10-12 erg cm-2 s-1
Mean rate:0.019 (±0.004) ct s-1
Mean flux:8.2 (+1.8, -1.7) ×10-13 erg cm-2 s-1
The source is fading with 2.2-σ significance
Has spectral fit?Yes
NH 1.44 × 1020 cm-2
Γ 1.78
Database ID:344
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 limit20.013 ct s-1
Obs rate/Rass UL2.2 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 13″ 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