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GRB250716A/GOTO25eyp — Source 1 (SWIFT J042705.5-463358)

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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

Enhanced position

Image of the UVOT image

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Source details
Rank/Classification: 1: Transient source
RA (J2000):04h 27m 05.23s (= 66.77179°)
Dec (J2000):-46° 33′ 59.5″ (= -46.5665°)
Error (radius, 90%):2.5″ (enhanced position)
Detection flag:Good
XRT exposure:4.2 ks (vignetting corrected)
Peak rate:0.179 (±0.030) ct s-1
Peak flux:7.7 (±1.3) ×10-12 erg cm-2 s-1
Mean rate:0.108 (±0.006) ct s-1
Mean flux:4.64 (±0.25) ×10-12 erg cm-2 s-1
The source is fading with 2.7-σ significance
Has spectral fit?Yes
NH 7.08 × 1020 cm-2
Γ 2.22
Database ID:1441
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 limit20.025 ct s-1
Obs rate/Rass UL5.1 σ
Fading? Maybe (2.7-σ significance).
Near 2MASS source? Yes, 1 match. Show details.
Near SIMBAD source?No.
High proper motion star?No.
Catalogue SearchCone search radius 7″ 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