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GRB 231220A: Swift observation summary

GRB RA:27.321°
GRB Dec:+77.897°
GRB Err:5.0 arcmin
T0:2023-12-20 16:10:17 UT
Galactic:126.04° +15.38°
Galactic NH:1.80× 1021 cm-2
Galactic E(B-V):0.6100707
Sun distance:118.88°
Sun angle:7.97 [hr](East of Sun)
Moon distance:75.64°
Visibility of this field.
Data analysed so far:
  • ObsID: 00021638001 with 3.6 ks exposure.
  • ObsID: 00021638002 with 0.1 ks exposure.

About ToO analysis.

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
Dist from
Exposure Notes Vizier
01h 47m 50.75s +77° 54′ 51.2″ 3.9′′ Good 4.6′ 3.6 ks The source is 3.0-σ above the RASS limit.
This source is affected by optical loading.
Matches SIMBAD source: HD 10594, 5.1″ away.
Vizier logo

1 Radius, 90% confidence.
2 Indicates how likely the source is to be real. See the 1SXPS documentation.
* The position was enhanced using astrometry derived from the Swift UVOT.
The position was astrometrically corrected using the XRT sources and the 2MASS catalogue.


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