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GRB 201227A: Swift observation summary

GRB RA:170.121°
GRB Dec:-73.613°
GRB Err:20.0 arcmin
T0:2020-12-27 15:14:07 UT
Galactic:296.53° -11.88°
Galactic NH:1.06× 1021 cm-2
Galactic E(B-V):0.3656949
Sun distance:72.27°
Sun angle:7.12 [hr](West of Sun)
Moon distance:113.55°
Visibility of this field.

About tiled field analysis.

So far 5 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 4 sources have been found in the XRT data. 1 sources match catalogued sources.

# RA (J2000) Dec (J2000) Err901 Detection
Dist from
IPN pos
Exposure Notes Vizier
11h 22m 25.99s -73° 29′ 16.9″ 7.4′′ Good 11.2′ 3.8 ks This source may be affected by optical loading Vizier logo
11h 22m 28.57s -73° 28′ 47.2″ 4.8′′ Good 11.6′ 3.8 ks This source may be affected by optical loading Vizier logo
11h 19m 24.19s -73° 35′ 11.9″ 5.6′′ Good 4.8′ 3.4 ks Vizier logo
11h 25m 10.87s -73° 37′ 57.4″ 4.4′′ Good 19.9′ 1.7 ks This source is affected by optical loading.
Matches SIMBAD source: HD 99441, 3.6″ 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