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GRB 231222B: Swift observation summary

GRB RA:251.350°
GRB Dec:+19.500°
GRB Err:18.0 arcmin
T0:2023-12-22 07:26:02 UT
Galactic:38.08° +36.20°
Galactic NH:5.69× 1020 cm-2
Galactic E(B-V):0.08287723
Sun distance:46.57°
Sun angle:1.24 [hr](West of Sun)
Moon distance:127.69°
Visibility of this field.
First slew:2023-12-22 19:24:28 UT
First observation:2023-12-22 19:23:53 UT
First analysis: UT

Source 1 has been manually confirmed as the GRB afterglow; data for this object are now available through the main GRB results area for this GRB.

About tiled field analysis.

So far 4 fields have been scheduled for observations. Data are available and processed for 4 of these. The list gives the exposure time used in source detection. If any individual sources were selected for follow-up observations, the source detection is not repeated for the follow up observations and the table below is not updated.

Find an upper limit.

Sources found so far

So far 3 sources have been found in the XRT data. 0 sources match catalogued sources.

# RA (J2000) Dec (J2000) Err901 Detection
Dist from
LAT pos
Exposure Notes Vizier
16h 44m 59.40s +19° 37′ 15.1″ 3.3′′ Good 9.3′ 2.1 ks Vizier logo
16h 44m 35.54s +19° 33′ 15.6″ 7.9′′ Reasonable 11.9′ 824 s Vizier logo
16h 44m 30.83s +19° 41′ 27.2″ 22.3′′ Poor 17.0′ 1.3 ks 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