Skip banner and navigation tools.

 |  site map

Sky images|
UVOT images|
SPER data|

[Hide] [Trigger list]

Swift Trigger: 1037828

Presumed name: GRB 210321A

Back to trigger list.

BAT 05h 51m 29.76s, +70° 07′ 08.4″
position:(87.874, +70.119 ± 180″)
XRT 05h 51m 35.10s, +70° 07′ 49.5″
position:(87.89627, 70.13042 ± 3.7″)
UVOT 05h 51m 34.73s, +70° 07′ 49.8″
position:(87.8947, +70.1305 ± 0.6″)
Galactic NHI:8.05×100 cm-2
Galactic E(B-V):0.111 mag
Best RA:05h 51m 34.73s= 87.8947 d
Best Dec:+70° 07′ 49.8″= +70.1305 d
Gal Lat:20.53
Gal Long:143.46
Sun angle:88.87°, -5.8 hr East of Sun

1Sper #3 auto processing.

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.

Image of the SPER data

There are 6 SPER messages, and 1 objects have been found

See the SPER page for details of how this position was produced.

Known transients within 5′ of the GRB

Click on the offset to view the transient announcement.

Offset (′′)RA DecDate reportedSource MiscQuery
0.1′′87.8947970.13050GCN #29697GRB 210321A: Swift/UVOT DetectionVizier logo
0.8′′87.8950870.13067GCN #29694GRB 210321A: DDOTI Position CorrectionVizier logo
1.4′′87.8957970.13057GCN #29681GRB 210321A: Enhanced Swift-XRT positionVizier logo
1.9′′87.8962570.13042GCN #29678GRB 210321A: Swift-XRT observationsVizier logo
47.4′′87.8750070.11917GCN #29677GRB 210321A: Swift detection of a burstVizier logo
77.0′′87.8866770.10928GCN #29691GRB 210321A: Swift-BAT refined analysisVizier logo

Catalogue Searches. Searched 3.33′ around XRT 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
105.087.867970.1579TYC 4348-1697-1B=12.63, G=12.0913, H=11.004, J=11.233, K=10.921, V=12.13Query vizier around this object
198.387.883170.0755Gaia DR2 485202081770352128G=17.6022Query vizier around this object

* 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
12.187.884670.1308NEDQuery vizier around this object
26.887.875870.1269NEDQuery vizier around this object
28.487.911270.1250NEDQuery vizier around this object
32.087.920470.1322NEDQuery vizier around this object
33.287.870070.1344NEDQuery vizier around this object
38.587.872970.1228NEDQuery vizier around this object
38.987.895470.1414NEDQuery vizier around this object
40.387.908770.1203NEDQuery vizier around this object
40.387.876270.1397NEDQuery vizier around this object
42.587.928770.1283NEDQuery vizier around this object


There are 223 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
28.487.875570.1269B1=21.0, B2=20.1, I=17.7, R1=20.0, R2=18.6USNO-B1Query vizier around this object
32.087.885570.1223B1=20.3, B2=20.0, I=18.9, R1=19.7, R2=19.4USNO-B1Query vizier around this object
34.187.870670.1342B2=20.9, R2=20.2USNO-B1Query vizier around this object
39.087.908970.1205B1=17.9, B2=17.1, I=15.7, R1=16.3, R2=16.1USNO-B1Query vizier around this object
39.287.908970.1204h=14.5, j=14.9, k=14.52MASSQuery vizier around this object
42.287.876470.1400B1=21.0, B2=21.9, R2=19.7USNO-B1Query vizier around this object
56.187.928970.1195B1=20.5, B2=21.8, I=18.7, R1=19.6, R2=19.9USNO-B1Query vizier around this object
60.187.881970.1145B1=19.9, B2=19.3, I=18.0, R1=18.5, R2=18.7USNO-B1Query vizier around this object
60.987.939470.1220h=16.1, j=16.8, k=15.92MASSQuery vizier around this object
61.387.939870.1220B1=18.3, B2=18.1, I=17.4, R1=17.4, R2=17.6USNO-B1Query vizier around this object

Queried USNO-B1, SDSS, 2MASS.

There are 129 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.