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Swift Trigger: 1091101

Presumed name: GRB 211227A

Back to trigger list.

BAT 08h 48m 30.24s, -02° 42′ 07.2″
position:(132.126, -2.702 ± 180″)
XRT 08h 48m 35.75s, -02° 44′ 08.2″
position:(132.14894, -2.73560 ± 3.8″)
UVOT No position available.
Galactic NHI:2.22×1020 cm-2
Galactic E(B-V):0.022 mag
Best RA:08h 48m 35.75s= 132.14894 d
Best Dec:-02° 44′ 08.2″= -2.73560 d
Gal Lat:24.4
Gal Long:229.87
Sun angle:136.79°, 9.6 hr West

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 4 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
0.2′′132.14898-2.73556GCN #31316GRB 211227A: Swift detection of a burstVizier logo
1.1′′132.14889-2.73531GCN #31322GRB 211227A: Enhanced Swift-XRT positionVizier logo
3.7′′132.14990-2.73526GCN #31320GRB 211227A: Nanshan/NEXT optical observations and host galaxy candidateVizier logo
17.8′′132.14400-2.73600GCN #31326GRB 211227A: Swift-BAT refined analysisVizier logo
146.4′′132.12600-2.70200GCN #31315Swift GRB211227.98: 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
115.0132.1571-2.7047NVSS J084837-024216Query 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
4.3132.1499-2.7349B=21.5, R=19.4APM-NQuery vizier around this object
11.5132.1516-2.7338B=21.5, R=19.5APM-NQuery vizier around this object
11.8132.1517-2.7339NEDQuery vizier around this object
15.3132.1529-2.7358NEDQuery vizier around this object
17.9132.1475-2.7308NEDQuery vizier around this object
18.1132.1479-2.7306NEDQuery vizier around this object
18.6132.1479-2.7305B=17.2, R=16.3APM-NQuery vizier around this object
19.1132.1542-2.7369NEDQuery vizier around this object
28.6132.1558-2.7317NEDQuery vizier around this object
30.9132.1409-2.7387B2=20.7, R2=19.3USNO-B1Query vizier around this object


There are 255 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
3.5132.1499-2.7354B2=20.6, I=16.9, R1=19.0, R2=19.2USNO-B1Query vizier around this object
4.1132.1499-2.7350B1=19.8, B2=20.1, R2=18.7USNO-B1Query vizier around this object
11.8132.1518-2.7340h=16.0, j=16.8, k=15.62MASSQuery vizier around this object
12.5132.1519-2.7338B1=20.4, B2=20.7, R2=18.9USNO-B1Query vizier around this object
13.4132.1523-2.7341B1=20.1, R2=19.1USNO-B1Query vizier around this object
17.9132.1475-2.7308h=16.1, j=16.4, k=15.12MASSQuery vizier around this object
18.2132.1479-2.7307B2=16.7, I=16.9, R1=15.8, R2=15.9USNO-B1Query vizier around this object
18.6132.1481-2.7305B1=16.1, B2=16.2, I=16.5, R1=16.0, R2=15.4USNO-B1Query vizier around this object
19.1132.1541-2.7370h=11.6, j=11.8, k=11.62MASSQuery vizier around this object
19.2132.1541-2.7370B1=12.9, B2=12.8, I=12.1, R1=12.2, R2=12.4USNO-B1Query vizier around this object

Queried USNO-B1, SDSS, 2MASS.

There are 185 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.