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Swift Trigger: 1101053

Presumed name: GRB 220403B

Back to trigger list.

BAT 12h 44m 06.00s, +89° 10′ 12.0″
position:(191.025, +89.170 ± 180″)
XRT 12h 46m 00.88s, +89° 11′ 01.9″
position:(191.50366, 89.18387 ± 3.6″)
UVOT 12h 45m 53.28s, +89° 11′ 06.4″
position:(191.4720, +89.1851 ± 0.7″)
Galactic NHI:6.62×1020 cm-2
Galactic E(B-V):0.236 mag
Best RA:12h 45m 53.28s= 191.4720 d
Best Dec:+89° 11′ 06.4″= +89.1851 d
Gal Lat:27.94
Gal Long:122.95
Sun angle:85.40°, -11.8 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.

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′′191.4727589.18514GCN #31876GRB 220403B: Swift/UVOT DetectionVizier logo
0.2′′191.4720889.18517GCN #31820GRB 220403B: Swift detection of a burst with an optical counterpartVizier logo
1.8′′191.4734289.18461GCN #31827GRB 220403B: Swift-XRT refined AnalysisVizier logo
30.9′′190.9745889.18028GCN #31834GRB 220403B: Swift-BAT refined analysisVizier logo

Catalogue Searches. Searched 200′ 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

* 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
17.2191.726389.1883NEDQuery vizier around this object
28.2191.485889.1772NEDQuery vizier around this object
37.4191.277989.1750NEDQuery vizier around this object
38.1191.512589.1744NEDQuery vizier around this object
38.5192.107589.1908NEDQuery vizier around this object
40.4192.154089.1776B=21.3, R=19.1APM-NQuery vizier around this object
40.6192.149889.1774B=21.5, R=18.8APM-NQuery vizier around this object
40.8191.046789.1756NEDQuery vizier around this object
41.7190.960889.1942NEDQuery vizier around this object
44.9192.154289.1772NEDQuery vizier around this object


There are 286 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
40.9192.154289.1773h=16.0, j=17.1, k=15.42MASSQuery vizier around this object
41.4192.163289.1773B1=20.6, B2=20.9, I=18.2, R1=18.8, R2=18.5USNO-B1Query vizier around this object
52.8190.514889.1881B2=20.3, I=17.9, R1=19.2, R2=19.1USNO-B1Query vizier around this object
60.5190.897789.1983B1=20.9, B2=21.8USNO-B1Query vizier around this object
62.6191.691989.2010h=16.0, j=16.5, k=15.42MASSQuery vizier around this object
63.6191.711889.2013B1=20.7, I=18.0, R2=19.5USNO-B1Query vizier around this object
70.4192.571389.1963B1=17.7, B2=17.8, I=15.8, R1=16.4, R2=16.8USNO-B1Query vizier around this object
70.6192.572889.1964h=15.0, j=15.4, k=15.02MASSQuery vizier around this object
73.4190.086389.1870h=14.9, j=15.8, k=14.92MASSQuery vizier around this object
73.5190.133089.1781B1=21.0, B2=20.8USNO-B1Query vizier around this object

Queried USNO-B1, SDSS, 2MASS.

There are 115 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.