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GRB 251002A: Swift observation summary

This is a confirmed GRB (GRB 251002A), the afterglow is source 1 -- please see the GRB results at https://www.swift.ac.uk/xrt_products/03000125 for updated analysis

.
Mission:SVOM/ECLAIRs
SVOM RA:13.906°
SVOM Dec:-5.544°
SVOM Err:4.0 arcmin
T0:2025-10-02 20:14:49 UT
Galactic:125.76° -68.39°
Galactic NH:4.63× 1020 cm-2
Sun distance:169.35°
Sun angle:11.66 [hr](West of Sun)
Moon distance:57.77°
Visibility of this field.
First slew:2025-10-02 21:11:47 UT
First observation:2025-10-02 21:11:17 UT
First analysis:2025-10-03 01:56:45 UT
Data analysed so far:
  • ObsID: 03000125001 with 1.5 ks exposure.

About tiled field analysis.

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

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]
00h 55m 37.95s -05° 34′ 00.4″ 2.6′′ * Good 1 (T) 1.4′ 1.5 ks The source is 4.3-σ above the RASS limit. 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.


Find an upper limit.

Sources found so far

So far 3 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]
00h 55m 37.95s -05° 34′ 00.4″ 2.6′′ * Good 1 (T) 1.4′ 1.5 ks The source is 4.3-σ above the RASS limit. Vizier logo
2
[details]
00h 55m 55.45s -05° 34′ 18.9″ 3.5′′ * Good 3 (U) 4.8′ 1.5 ks Vizier logo
3
[details]
00h 55m 39.53s -05° 42′ 22.6″ 8.4′′ Poor 3 (U) 9.8′ 1.5 ks Matches SIMBAD source: Gaia DR2 2524709289874260096, 1.6″ 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