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Swift Trigger: 540255

Presumed name: GRB 121202A

Back to trigger list.

BAT 17h 07m 15.60s, +23° 57′ 07.2″
position:(256.815, +23.952 ± 180″)
XRT 17h 07m 11.29s, +23° 56′ 55.9″
position:(256.79704, 23.94886 ± 3.7″)
UVOT No position available.
Galactic NHI:3.91×1020 cm-2
Galactic E(B-V):NED unavailable
Best RA:17h 07m 11.29s= 256.79704 d
Best Dec:+23° 56′ 55.9″= 23.94886 d
Gal Lat:32.85
Gal Long:45.18
Sun angle:46.62°, -0.5 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

UVOT white image

white image

Blink images with DSS (link via GSFC)


SPER results page for this trigger.

Image of the SPER data

There are 17 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′′256.7970423.94886GCN #14036GRB 121202A: Swift-XRT observationsVizier logo
2.5′′256.7968923.94818GCN #14038GRB 121202A: Enhanced Swift-XRT positionVizier logo
32.0′′256.7904223.94236GCN #14037GRB 121202A: Swift-BAT refined analysisVizier logo
60.2′′256.8150023.95200GCN #14032GRB 121202A: Swift detection of a burstVizier 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
101.6256.827323.9547TYC 2060-325-1B=12.24, V=11.60Query vizier around this object
129.1256.817023.9180IRAS F17051+2358Query vizier around this object

* RA/Dec in equinox J2000

X-ray sources

RA*Dec* Source table2Observatory Query
175.2256.771023.90646.340e+0 +/- 1.800e-10.000e+0XTEASSCATQuery vizier around this object

Queried the X-ray MASTER catalogue.

* RA/Dec in equinox J2000

1Energy band for count-rate is mission specific.


RA*Dec*Redshift CatalogueQuery
14.4256.793123.9505R=21.4, g=22.3, i=21.1, u=23.0, z=20.3SDSSQuery vizier around this object
14.4256.792923.9506Mag=22.2NEDQuery vizier around this object
14.4256.793023.9505R=21.4, g=22.6, i=21.0, u=23.6, z=20.3SDSSQuery vizier around this object
17.0256.792023.9479R=22.2, g=23.5, i=22.0, u=24.6, z=21.2SDSSQuery vizier around this object
17.3256.794623.9531Mag=23.5NEDQuery vizier around this object
17.4256.794723.9532R=22.8, g=23.0, i=23.6, u=24.7, z=21.7SDSSQuery vizier around this object
21.4256.801423.9533R=23.3, g=23.9, i=22.1, u=24.5, z=21.8SDSSQuery vizier around this object
21.6256.801423.9533R=22.0, g=24.7, i=21.2, u=22.6, z=21.6SDSSQuery vizier around this object
27.2256.794923.9562R=20.7, g=21.6, i=20.4, u=22.6, z=20.2SDSSQuery vizier around this object
27.2256.795023.9561Mag=21.7NEDQuery vizier around this object


There are 795 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
17.4256.794723.9532I=22.8, R=22.6, g=23.4, u=24.4, z=23.8SDSSQuery vizier around this object
18.6256.801523.9520I=22.5, R=22.6, g=24.2, u=23.8, z=21.9SDSSQuery vizier around this object
27.8256.790623.9438I=21.6, R=21.8, g=22.4, u=23.4, z=22.0SDSSQuery vizier around this object
27.9256.790623.9438I=21.6, R=22.0, g=22.6, u=23.1, z=21.4SDSSQuery vizier around this object
32.0256.802823.9417I=20.6, R=20.8, g=21.4, u=22.6, z=20.6SDSSQuery vizier around this object
32.0256.802823.9417I=20.5, R=20.7, g=21.3, u=22.7, z=20.5SDSSQuery vizier around this object
32.0256.802823.9417B2=20.7, R2=20.2USNO-B1Query vizier around this object
32.5256.800623.9573I=21.1, R=22.3, g=23.5, u=26.2, z=20.5SDSSQuery vizier around this object
32.7256.800623.9573I=21.1, R=22.2, g=23.6, u=25.0, z=20.3SDSSQuery vizier around this object
37.2256.787523.9544I=18.9, R=19.1, g=19.8, u=21.3, z=18.7SDSSQuery vizier around this object

Queried USNO-B1, SDSS, 2MASS.

There are 731 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.