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sb25091001: Swift observation summary

This is a confirmed GRB (GRB 250910A), the afterglow is source 1 -- please see the GRB results at https://www.swift.ac.uk/xrt_products/03000083 for updated analysis

.
Mission:SVOM/ECLAIRs
SVOM RA:39.767°
SVOM Dec:-39.676°
SVOM Err:9.8 arcmin
T0:2025-09-10 03:16:10 UT
Galactic:249.17° -64.42°
Galactic NH:1.70× 1020 cm-2
Sun distance:122.26°
Sun angle:8.58 [hr](West of Sun)
Moon distance:54.17°
Visibility of this field.
First slew:2025-09-10 11:24:20 UT
First observation:2025-09-10 11:23:45 UT
First analysis:2025-09-10 15:37:49 UT
Data analysed so far:
  • ObsID: 03000083001 with 1.2 ks exposure.

About tiled field analysis.

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

Find an upper limit.

Sources found so far

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

:

# RA (J2000) Dec (J2000) Err901 Detection
Flag2		 Rank3 Dist from
SVOM/ECLAIRs pos		 Exposure Notes Vizier
1
[details]		 02h 39m 12.39s -39° 41′ 41.9″ 8.4′′ * Good 3 (U) 2.0′ 1.2 ks Matches SIMBAD source: UCAC4 252-002457, 23.9″ away. Vizier logo

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.

FITS image.

Image of all observations processed so far

Exposure map

FITS exposure map.

Exposure map of all observations processed so far