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GRB 220831A: Swift observation summary

Mission:Swift/BAT
GRB RA:24.255°
GRB Dec:-41.582°
GRB Err:60 arcsec
T0:2022-08-31 13:56:33 UT
Galactic:272.96° -72.79°
Galactic NH:1.71× 1020 cm-2
Galactic E(B-V):0.0161684
Sun distance:128.67°
Sun angle:9.02 [hr](West of Sun)
Moon distance:129.07°
Visibility of this field.
Data analysed so far:
  • ObsID: 00021512001 with 5.0 ks exposure.
  • ObsID: 00021512002 with 4.9 ks exposure.

About ToO analysis.

Find an upper limit.

Sources found so far

So far 11 sources have been found in the XRT data. 3 sources match catalogued sources.

# RA (J2000) Dec (J2000) Err901 Detection
Flag2
Dist from
Swift/BAT pos
Exposure Notes Vizier
1
[details]
01h 36m 39.05s -41° 31′ 42.5″ 5.7′′ Good 5.2′ 9.9 ks Matches SIMBAD source: GALEX 2676063997571106881, 3.5″ away. Vizier logo
2
[details]
01h 36m 43.07s -41° 41′ 52.5″ 5.1′′ Good 7.7′ 9.1 ks Matches known X-ray source: 2RXP J013644.8-414137 (from ROSAT/ROSPSPC), 24.446265120085″ away.
Matches SIMBAD source: UCAC2 13892736, 1.8″ away.
Vizier logo
3
[details]
01h 37m 28.73s -41° 30′ 50.7″ 5.9′′ Reasonable 6.6′ 9.9 ks Vizier logo
4
[details]
01h 37m 27.51s -41° 32′ 00.9″ 7.2′′ Reasonable 5.7′ 9.9 ks Vizier logo
5
[details]
01h 37m 33.60s -41° 36′ 32.8″ 6.5′′ Good 6.3′ 9.9 ks Vizier logo
6
[details]
01h 37m 13.51s -41° 21′ 07.2″ 8.1′′ Good 14.0′ 3.1 ks Vizier logo
7
[details]
01h 36m 22.01s -41° 30′ 36.3″ 6.8′′ Poor 8.5′ 9.9 ks Vizier logo
8
[details]
01h 36m 47.14s -41° 22′ 55.6″ 7.2′′ Good 12.3′ 5.6 ks Matches known X-ray source: 1WGA J0136.7-4123 (from ROSAT/WGACAT), 35.079302546949″ away. Vizier logo
9
[details]
01h 36m 48.15s -41° 35′ 58.1″ 6.1′′ Reasonable 2.7′ 9.9 ks Vizier logo
10
[details]
01h 37m 46.67s -41° 41′ 03.1″ 7.9′′ Good 10.5′ 5.3 ks Vizier logo
11
[details]
01h 36m 31.32s -41° 34′ 53.1″ 8.1′′ Poor 5.6′ 9.9 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.


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