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Swift Trigger: 541200

Presumed name: GRB 121211A

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BAT 13h 02m 10.56s, +30° 09′ 39.6″
position:(195.544, +30.161 ± 180″)
XRT 13h 02m 07.97s, +30° 08′ 56.0″
position:(195.5332, 30.1489 ± 4.8″)
UVOT 13h 02m 07.99s, +30° 08′ 54.6″
position:(195.5333, +30.1485 ± 1.1″)
Galactic NHI:9.49×1019 cm-2
Galactic E(B-V):NED unavailable
Best RA:13h 02m 07.99s= 195.5333 d
Best Dec:+30° 08′ 54.6″= +30.1485 d
Gal Lat:86.18
Gal Long:85.71
Sun angle:80.75°, 4.2 hr West

1Sper #0 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

UVOT u image

u image

UVOT white image

white image

Blink images with DSS (link via GSFC)


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
0.0′′195.5332930.14850GCN #14063GRB 121211A: Swift/UVOT DetectionVizier logo
0.4′′195.5333830.14858GCN #14057GRB 121211A: Swift detection of a burst with an optical counterpartVizier logo
0.8′′195.5331730.14869GCN #14060GRB 121211A: Enhanced Swift-XRT positionVizier logo
156.9′′195.5750030.17300GCN #14067GRB 121211A: Swift-BAT refined analysisVizier logo

Catalogue Searches. Searched 3.33′ 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
105.5195.556530.1271[MC85] 24Query vizier around this object
158.6195.579030.1680CSO 794B=18Query vizier around this object
164.9195.580830.1688[BCF91] 426B=17.95, V=17.55Query vizier around this object
166.1195.568730.1140NGP9 F323-0428365Query vizier around this object
193.1195.592030.1659[MC85] 31Query vizier around this object

There are 5 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
6.0195.534630.1472B=22.1, R=20.0APM-NQuery vizier around this object
11.5195.530730.1508R=21.9, g=23.0, i=21.9, u=22.6, z=21.4SDSSQuery vizier around this object
11.5195.530830.1508Mag=22.6NEDQuery vizier around this object
29.2195.537930.1556Mag=21.6NEDQuery vizier around this object
30.3195.537830.1560B2=21.4, R1=20.3, R2=20.2USNO-B1Query vizier around this object
36.5195.524730.1417R=22.7, g=23.6, i=21.5, u=24.5, z=21.4SDSSQuery vizier around this object
46.7195.548330.1493R=23.0, g=24.0, i=21.7, u=25.7, z=21.0SDSSQuery vizier around this object
54.1195.535830.1633Mag=23.0NEDQuery vizier around this object
54.1195.536030.1633R=22.0, g=23.1, i=22.8, u=26.1, z=22.0SDSSQuery vizier around this object
54.4195.515830.1492Mag=18.3NEDQuery vizier around this object


There are 263 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
29.2195.537830.1556I=20.3, R=20.7, g=21.6, u=23.7, z=20.1SDSSQuery vizier around this object
32.7195.529330.1569I=23.3, R=23.6, g=22.8, u=24.3, z=22.7SDSSQuery vizier around this object
44.4195.519430.1510h=15.9, j=17.0, k=15.82MASSQuery vizier around this object
44.9195.519230.1511I=20.3, R=22.9, g=24.3, u=24.8, z=18.8SDSSQuery vizier around this object
52.5195.524330.1362B1=20.9, R1=20.3, R2=20.4USNO-B1Query vizier around this object
54.3195.515930.1493B1=18.3, B2=18.3, I=16.2, R1=16.6, R2=16.8USNO-B1Query vizier around this object
54.4195.515930.1492I=16.9, R=17.3, g=18.3, u=20.7, z=16.7SDSSQuery vizier around this object
54.5195.515830.1493h=14.8, j=15.6, k=14.82MASSQuery vizier around this object
64.5195.529830.1309B2=21.1, I=18.1, R1=18.9, R2=19.4USNO-B1Query vizier around this object
64.6195.529730.1308I=18.3, R=19.4, g=20.7, u=23.3, z=17.7SDSSQuery vizier around this object

Queried USNO-B1, SDSS, 2MASS.

There are 133 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.