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Swift Trigger: 1145959

Presumed name: GRB 221226B

Back to trigger list.

BAT 01h 31m 40.08s, -41° 33′ 14.4″
position:(22.917, -41.554 ± 180″)
XRT 01h 31m 38.14s, -41° 31′ 35.3″
position:(22.90890, -41.52648 ± 3.5″)
UVOT No position available.
Galactic NHI:1.61×1020 cm-2
Galactic E(B-V):0.017 mag
Best RA:01h 31m 38.14s= 22.90890 d
Best Dec:-41° 31′ 35.3″= -41.52648 d
Gal Lat:-73.41
Gal Long:275.7
Sun angle:86.88°, -7.2 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.

Image of the SPER data

There are 3 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
0.0′′22.90890-41.52648GCN #33108GRB 221226B: Swift detection of a burstVizier logo
2.3′′22.90971-41.52669GCN #33109GRB 221226B: Enhanced Swift-XRT positionVizier logo
44.3′′22.90300-41.51500GCN #33115GRB 221226B Swift-BAT refined analysisVizier logo
101.4′′22.91700-41.55400GCN #33106Swift GRB221226.95: Global MASTER-Net observations report Vizier 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
13.822.9125-41.52926dFGS gJ013139.1-413144B=18.10, R=17.15Query vizier around this object
42.522.8944-41.5312ESO 296-37B=15.92, H=13.499, J=14.045, K=13.462, R=14.97Query vizier around this object
142.722.9195-41.4876LCRS B012929.7-414440Query vizier around this object
196.622.8638-41.5694LEDA 574308Query vizier around this object

There are 4 SIMBAD objects within the position error. The full list is here.

* 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
13.422.9125-41.5290B=18.1, R2=16.6, i=17.1SSSQuery vizier around this object
13.622.9125-41.52890.018296Mag=18.14NEDQuery vizier around this object
18.022.9083-41.5214NEDQuery vizier around this object
18.222.9133-41.5303NEDQuery vizier around this object
20.022.9141-41.5304R1=19.8, R2=23.4USNO-B1Query vizier around this object
35.622.8979-41.5319NEDQuery vizier around this object
42.622.8944-41.5312h=13.6, j=14.4, k=13.72MASSQuery vizier around this object
42.622.8942-41.53110.021125Mag=15.92NEDQuery vizier around this object
43.022.8943-41.5314B=15.7, R2=14.4, i=14.8SSSQuery vizier around this object
44.822.9071-41.5389NEDQuery vizier around this object


There are 226 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
13.222.9125-41.5290B2=16.8, I=16.6, R1=15.2, R2=24.8USNO-B1Query vizier around this object
41.222.8937-41.5273I=18.9, R1=16.8, R2=25.3USNO-B1Query vizier around this object
42.022.8933-41.5259I=18.9, R1=13.6, R2=25.0USNO-B1Query vizier around this object
42.222.8932-41.5262I=18.8, R1=17.3, R2=16.9USNO-B1Query vizier around this object
42.422.8934-41.5286I=18.8, R1=15.2, R2=14.3USNO-B1Query vizier around this object
42.522.8944-41.5311h=15.5, j=16.2, k=14.22MASSQuery vizier around this object
42.522.8944-41.5310B2=13.5, I=13.3, R1=11.4, R2=14.1USNO-B1Query vizier around this object
42.622.8940-41.5306B2=11.8, I=15.6USNO-B1Query vizier around this object
43.022.8946-41.5319h=15.6, j=15.1, k=14.32MASSQuery vizier around this object
43.222.8929-41.5259I=18.0, R1=17.3, R2=17.8USNO-B1Query vizier around this object

Queried USNO-B1, SDSS, 2MASS.

There are 91 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.