Skip banner and navigation tools.

School of Physics & Astronomy

US Site | Italian Site | UK site

Home > SVOM follow up > GRB 250706B

SVOM_FIELD00023

SVOM

23

/SVOM

GRB 250706B: Swift observation summary

This is a confirmed GRB (GRB 250706B), the afterglow is source 1 -- please see the GRB results at https://www.swift.ac.uk/xrt_products/00019912 for updated analysis

Data analysed so far:

• ObsID: 00019912001 with 0.1 ks exposure.

About tiled field analysis.

So far 1 fields have been scheduled for observations. Data are available and processed for 1 of these.

• 19912 — 50 s of cleaned data taken between 2025-07-06 17:24:38 and 2025-07-06 17:30:19

Details of afterglow candidates

1 sources were found which matches the afterglow criteria.

#	RA (J2000)	Dec (J2000)	Err901	Detection Flag2	Rank3	Dist from SVOM/ECLAIRs pos	Exposure	Notes	Vizier
1 [details]	02h 44m 55.04s41.22934°	-50° 03′ 37.9″-50.06052°	3.5′′	Good	1 (T)	7.4′	50 s	The source is 7.1-σ above the RASS limit.
Mean XRT rate: 31 (±4) ct s-1 Peak XRT rate: 31 (±4) ct s-1 RASS PSPC 3-σ upper limit: 0.04 ct s-1 (PSPC count-rate) Mean XRT rate converted to PSPC: 36 (±5) ct s-1 Peak XRT rate converted to PSPC: 36 (±5) ct s-1 Mean XRT flux: 1.42 (±0.20) ×10-9 erg cm-1s-1 Peak XRT flux: 1.42 (±0.20) ×10-9 erg cm-1s-1 Products: Light curve | Spectrum

¹ Radius, 90% confidence.
² Indicates how likely the source is to be real. See the LSXPS documentation.
³ T=Transient Source, O=Outbursting known source, U=Uncatalogued X-ray source, K=Known X-ray source.
^* The position was enhanced using astrometry derived from the Swift UVOT.
^† The position was astrometrically corrected using the XRT sources and the 2MASS catalogue.

Find an upper limit.

Sources found so far

So far 1 sources have been found in the XRT data. 0 sources match catalogued sources.

#	RA (J2000)	Dec (J2000)	Err901	Detection Flag2	Rank3	Dist from SVOM/ECLAIRs pos	Exposure	Notes	Vizier
1 [details]	02h 44m 55.04s41.22934°	-50° 03′ 37.9″-50.06052°	3.5′′	Good	1 (T)	7.4′	50 s	The source is 7.1-σ above the RASS limit.
Mean XRT rate: 31 (±4) ct s-1 Peak XRT rate: 31 (±4) ct s-1 RASS PSPC 3-σ upper limit: 0.04 ct s-1 (PSPC count-rate) Mean XRT rate converted to PSPC: 36 (±5) ct s-1 Peak XRT rate converted to PSPC: 36 (±5) ct s-1 Mean XRT flux: 1.42 (±0.20) ×10-9 erg cm-1s-1 Peak XRT flux: 1.42 (±0.20) ×10-9 erg cm-1s-1 Products: Light curve | Spectrum

¹ Radius, 90% confidence.
² Indicates how likely the source is to be real. See the LSXPS documentation.
³ T=Transient Source, O=Outbursting known source, U=Uncatalogued X-ray source, K=Known X-ray source.
^* The position was enhanced using astrometry derived from the Swift UVOT.
^† The position was astrometrically corrected using the XRT sources and the 2MASS catalogue.

Image

Select image style: Draggable PNG | JS9.

Magnify image and make scrollable?

FITS image.

---

Exposure map

Magnify exposure map and make scrollable?

FITS exposure map.