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Swift Trigger: 1069788

Presumed name: GRB 210822A

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BAT 20h 17m 54.24s, +05° 15′ 54.0″
position:(304.476, 5.265 ± 180″)
XRT 20h 17m 45.05s, +05° 16′ 43.0″
position:(304.4377, 5.2786 ± 11.9″)
UVOT 20h 17m 45.00s, +05° 16′ 59.9″
position:(304.4375, +5.2833 ± 0.6″)
Galactic NHI:9.60×1020 cm-2
Galactic E(B-V):0.148 mag
Best RA:20h 17m 45.00s= 304.4375 d
Best Dec:+05° 16′ 59.9″= +5.2833 d
Gal Lat:-16.5
Gal Long:47.98
Sun angle:148.33°, -10.2 hr East of Sun

GCN Notices for this burst.

View this region in Aladin.

Observability of this burst for Swift.

Sun angle for this burst.

UVOT data

No UVOT images are currently available.


SPER results page for this trigger.

No SPER data received yet. Refresh this page to check again.

Known transients within 5′ of the GRB

Click on the offset to view the transient announcement.

Offset (′′)RA DecDate reportedSource MiscQuery
0.2′′304.437505.28336GCN #30677GRB 210822A: Swift detection of a burst with an optical afterglowVizier logo
0.4′′304.437475.28320GCN #30713GRB 210822A: VLA detectionVizier logo
0.7′′304.437565.28349GCN #30682GRB 210822A: Enhanced Swift-XRT positionVizier logo
106.9′′304.461005.26500GCN #30689GRB 210822A: Swift-BAT refined analysisVizier logo
231.5′′304.498145.30544GCN #30712GRB 210822A: TSHAO optical observationVizier logo
231.5′′304.498145.30544GCN #30714GRB 210822A: TSHAO continued optical observationVizier logo

There are 13 matches in total. See the full table for details.

Catalogue Searches. Searched 200′ around UVOT position

Click on the distance to view the full details (not available for sources from the SSS catalogue). Click on the column headers to sort the table on that column (click again to invert sort order).


RA*Dec*SIMBAD name Query

* RA/Dec in equinox J2000

X-ray sources

RA*Dec* Source table2Observatory Query

Queried the X-ray MASTER catalogue.

* RA/Dec in equinox J2000

1Energy band for count-rate is mission specific.


RA*Dec*Redshift CatalogueQuery
6.8304.43925.2828NEDQuery vizier around this object
8.5304.43965.2825NEDQuery vizier around this object
10.9304.43505.2850NEDQuery vizier around this object
11.7304.43485.2851I=18.1, R2=19.3USNO-B1Query vizier around this object
17.5304.44215.2819NEDQuery vizier around this object
24.1304.44255.2788B1=17.4, B2=17.4, I=16.2, R1=16.2, R2=16.6USNO-B1Query vizier around this object
24.3304.44255.2786NEDQuery vizier around this object
25.7304.43335.2772NEDQuery vizier around this object
25.8304.43365.2773B1=19.2, B2=18.5, I=17.4, R1=17.6, R2=17.5USNO-B1Query vizier around this object
28.6304.44085.2761NEDQuery vizier around this object


There are 378 galaxies within the position error. The full list is here.

* RA/Dec in equinox J2000

Magnitudes depend on the catalogue. e.g. For Sloan, R is the Sloan r mag, not the Johnson R from APM, for example


RA*Dec* CatalogueQuery
6.8304.43935.2829h=15.8, j=16.4, k=15.12MASSQuery vizier around this object
7.0304.43945.2831B1=18.4, B2=17.7, I=16.5, R1=17.0, R2=16.9USNO-B1Query vizier around this object
9.4304.43525.2846B1=20.5, B2=19.6, I=18.2, R1=18.3, R2=18.6USNO-B1Query vizier around this object
11.7304.43885.2863B1=20.2, B2=19.4, I=18.0, R1=18.6, R2=18.8USNO-B1Query vizier around this object
17.2304.44215.2821B1=17.6, B2=17.6, I=16.8, R1=16.7, R2=17.1USNO-B1Query vizier around this object
17.5304.44225.2820h=15.7, j=16.1, k=15.62MASSQuery vizier around this object
18.1304.43875.2784B1=20.3, B2=19.6, R1=18.9, R2=19.5USNO-B1Query vizier around this object
21.4304.43315.2873B2=20.6, I=18.3, R1=19.1, R2=19.2USNO-B1Query vizier around this object
23.9304.43105.2818B2=20.4, I=18.7, R2=19.5USNO-B1Query vizier around this object
24.3304.44255.2787h=15.1, j=15.6, k=15.22MASSQuery vizier around this object

Queried USNO-B1, SDSS, 2MASS.

There are 330 stars within the position error. The full list is here.

* RA/Dec in equinox J2000

Magnitudes depend on the catalogue. e.g. For Sloan, R is the Sloan r mag, not the Johnson R from APM, for example.