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GRB 210802A: Swift observation summary

Mission:Fermi/LAT
GRB RA:230.900°
GRB Dec:+29.846°
GRB Err:21.1 arcmin
T0:2021-08-02 20:08:06 UT
Galactic:46.75° +56.60°
Galactic NH:1.92× 1020 cm-2
Galactic E(B-V):0.02251009
Sun distance:87.76°
Sun angle:6.51 [hr] (East of Sun)
Moon distance:127.73°
Visibility of this field.

Source 7 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.

Probable afterglow details

A source was found which matches the afterglow criteria.

# RA (J2000) Dec (J2000) Err901 Detection
Flag2
Dist from
LAT pos
Exposure Notes Vizier
7
[details]
15h 22m 53.48s +29° 54′ 06.5″ 3.5′′ Good 9.8′ 1.2 ks The source is 4.1-σ above the 2SPXS limit. 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.


Find an upper limit.

Sources found so far

So far 33 sources have been found in the XRT data. 7 sources match catalogued sources.

# RA (J2000) Dec (J2000) Err901 Detection
Flag2
Dist from
LAT pos
Exposure Notes Vizier
1
[details]
15h 22m 51.69s +29° 39′ 16.4″ 8.7′′ Poor 15.0′ 1.7 ks Vizier logo
2
[details]
15h 23m 05.11s +29° 23′ 21.0″ 8.8′′ Poor 28.2′ 1.7 ks Vizier logo
3
[details]
15h 23m 13.91s +29° 22′ 59.5″ 10.1′′ Poor 28.2′ 1.7 ks Vizier logo
4
[details]
15h 23m 19.56s +29° 28′ 34.1″ 8.9′′ Reasonable 22.5′ 1.7 ks Vizier logo
5
[details]
15h 24m 06.97s +29° 49′ 33.2″ 3.5′′ Good 6.8′ 1.2 ks Matches known X-ray source: 4XMM J152406.9+294935 (from XMM-NEWTON/XMMSSC), 3.3128214927741″ away.
Matches SIMBAD source: 2MASS J15240691+2949353, 3.3″ away.
Vizier logo
6
[details]
15h 22m 38.39s +29° 30′ 55.0″ 8.5′′ Poor 23.5′ 1.7 ks Vizier logo
7
[details]
15h 22m 53.48s +29° 54′ 06.5″ 3.5′′ Good 9.8′ 1.2 ks The source is 4.1-σ above the 2SPXS limit. Vizier logo
8
[details]
15h 24m 19.26s +29° 50′ 11.4″ 6.4′′ Poor 9.4′ 1.2 ks Vizier logo
9
[details]
15h 23m 18.13s +29° 46′ 27.8″ 3.8′′ Good 5.8′ 1.2 ks Matches known X-ray source: 4XMM J152317.9+294629 (from XMM-NEWTON/XMMSSC), 5.1689880224211″ away.
Matches SIMBAD source: LAMOST J152317.95+294630.3, 6″ away.
Vizier logo
10
[details]
15h 23m 30.06s +29° 23′ 13.0″ 8.2′′ Poor 27.6′ 1.7 ks Vizier logo
11
[details]
15h 22m 53.01s +29° 25′ 48.5″ 9.0′′ Poor 26.6′ 1.7 ks Vizier logo
12
[details]
15h 24m 26.06s +29° 59′ 52.8″ 10.6′′ Poor 14.2′ 1.2 ks Matches known X-ray source: 2E 1522.3+3010 (from EINSTEIN/IPC), 10.983540203269″ away.
Matches SIMBAD source: [RGD2013] J152424.797+295952.042, 16.4″ away.
Vizier logo
13
[details]
15h 22m 45.00s +29° 31′ 57.8″ 6.2′′ Poor 21.8′ 1.7 ks Vizier logo
14
[details]
15h 23m 09.90s +29° 40′ 50.4″ 9.5′′ Poor 11.4′ 1.7 ks Vizier logo
15
[details]
15h 22m 53.60s +29° 28′ 30.6″ 8.5′′ Poor 24.1′ 1.7 ks This source may be affected by optical loading Vizier logo
16
[details]
15h 23m 13.84s +29° 26′ 31.2″ 9.2′′ Poor 24.7′ 1.7 ks Vizier logo
17
[details]
15h 23m 09.74s +29° 24′ 13.5″ 9.8′′ Poor 27.1′ 1.7 ks This source may be affected by optical loading Vizier logo
18
[details]
15h 22m 47.46s +29° 28′ 33.1″ 9.5′′ Poor 24.6′ 1.7 ks Vizier logo
19
[details]
15h 24m 11.87s +29° 54′ 13.1″ 9.4′′ Poor 8.5′ 1.2 ks Vizier logo
20
[details]
15h 23m 43.96s +29° 25′ 51.5″ 41.5′′ Poor 25.0′ 1.7 ks Vizier logo
21
[details]
15h 23m 15.42s +29° 39′ 30.9″ 9.1′′ Poor 12.1′ 1.7 ks Matches SIMBAD source: [RGD2013] J152314.879+293931.825, 7″ away. Vizier logo
22
[details]
15h 23m 38.42s +29° 58′ 24.9″ 47.5′′ Poor 7.7′ 2.3 ks Matches known X-ray source: 4XMM J152338.0+295825 (from XMM-NEWTON/XMMSSC), 4.3872410512346″ away.
Matches SIMBAD source: [RGD2013] J152335.077+295751.405, 54.9″ away.
Vizier logo
23
[details]
15h 22m 47.45s +29° 29′ 43.8″ 12.7′′ Poor 23.5′ 1.7 ks Vizier logo
24
[details]
15h 24m 23.05s +29° 54′ 11.4″ 10.7′′ Poor 10.8′ 1.2 ks Vizier logo
25
[details]
15h 22m 41.30s +29° 30′ 20.8″ 9.2′′ Poor 23.6′ 1.7 ks Vizier logo
26
[details]
15h 23m 10.63s +29° 23′ 46.4″ 9.5′′ Poor 27.5′ 1.7 ks This source may be affected by optical loading Vizier logo
27
[details]
15h 23m 14.88s +29° 25′ 30.3″ 8.3′′ Poor 25.7′ 1.7 ks Vizier logo
28
[details]
15h 24m 16.80s +29° 51′ 38.5″ 9.8′′ Poor 8.9′ 1.2 ks This source may be affected by optical loading Vizier logo
29
[details]
15h 24m 04.60s +29° 52′ 50.5″ 16.9′′ Poor 6.5′ 1.2 ks Matches known X-ray source: 1RXS J152407.9+295253 (from ROSAT/RASSBSC), 43.048680321761″ away. Vizier logo
30
[details]
15h 22m 52.31s +29° 28′ 04.5″ 8.8′′ Poor 24.6′ 1.7 ks This source may be affected by optical loading Vizier logo
31
[details]
15h 24m 16.84s +29° 52′ 08.9″ 9.8′′ Poor 9.0′ 1.2 ks This source may be affected by optical loading Vizier logo
32
[details]
15h 24m 18.20s +29° 50′ 58.8″ 16.6′′ Poor 9.2′ 1.2 ks This source may be affected by optical loading
Matches SIMBAD source: [RGD2013] J152419.729+295107.129, 21.6″ away.
Vizier logo
33
[details]
15h 23m 06.55s +29° 32′ 45.0″ 8.3′′ Poor 19.1′ 1.7 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