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Swift Trigger: 535764

Presumed name: GRB 121011A

Back to trigger list.

BAT 17h 20m 48.00s, +41° 08′ 13.2″
position:(260.200, +41.137 ± 180″)
XRT 17h 20m 51.61s, +41° 06′ 42.4″
position:(260.21504, 41.11179 ± 4.3″)
UVOT 17h 20m 51.19s, +41° 06′ 36.7″
position:(260.2133, +41.1102 ± 0.6″)
Galactic NHI:2.34×1020 cm-2
Galactic E(B-V):NED unavailable
Best RA:17h 20m 51.19s= 260.2133 d
Best Dec:+41° 06′ 36.7″= +41.1102 d
Gal Lat:33.92
Gal Long:66.01
Sun angle:75.30°, -4.2 hr East of Sun

1Sper #1 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.

Image of the SPER data

There are 2 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
0.4′′260.2134241.11025GCN #13845GRB 121011A: Swift detection of a burst with optical afterglowVizier logo
0.6′′260.2134641.11031GCN #13864GRB 121011A: Swift/UVOT DetectionVizier logo
0.8′′260.2134241.11039GCN #13853GRB 121011A: TNG optical observationsVizier logo
3.7′′260.2146641.11031GCN #13850GRB 121011A: Enhanced Swift-XRT positionVizier logo
52.0′′260.2041741.12289GCN #13852GRB 121011A� Swift-BAT refined analysisVizier logo

There are 12 matches in total. See the full table for details.

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
63.6260.222541.0940FIRST J172053.4+410538Query vizier around this object
132.5260.215041.1470TYC 3090-17-1B=12.08, V=11.08Query 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
24.6260.221741.1078Mag=21.6NEDQuery vizier around this object
35.5260.212541.1200Mag=21.8NEDQuery vizier around this object
36.8260.201341.1056Mag=19.3NEDQuery vizier around this object
36.8260.201241.1055R=18.3, g=19.3, i=17.8, u=21.0, z=17.5SDSSQuery vizier around this object
37.0260.201241.1055B=19.9, R=17.2APM-NQuery vizier around this object
37.4260.201141.1054B=20.2, R=20.0APM-NQuery vizier around this object
37.9260.219641.1194Mag=22.5NEDQuery vizier around this object
37.9260.210041.1206Mag=22.1NEDQuery vizier around this object
38.6260.219941.1197R1=20.3, R2=20.4USNO-B1Query vizier around this object
40.8260.209241.1211Mag=22.6NEDQuery vizier around this object


There are 448 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
24.3260.221841.1080B2=21.8, R1=19.6, R2=19.9USNO-B1Query vizier around this object
24.6260.221841.1079I=19.0, R=20.2, g=21.6, u=24.0, z=18.4SDSSQuery vizier around this object
35.4260.212741.1200I=19.7, R=20.5, g=21.9, u=24.1, z=19.2SDSSQuery vizier around this object
36.1260.212741.1202B2=21.6, I=18.2, R1=20.2, R2=20.0USNO-B1Query vizier around this object
36.9260.201241.1056B1=19.9, B2=19.2, I=17.9, R1=17.9, R2=17.6USNO-B1Query vizier around this object
37.0260.201141.1056h=16.2, j=16.7, k=15.22MASSQuery vizier around this object
37.9260.219841.1195I=20.7, R=21.1, g=22.5, u=26.0, z=20.3SDSSQuery vizier around this object
37.9260.210041.1204I=21.6, R=21.8, g=22.0, u=23.6, z=21.4SDSSQuery vizier around this object
41.7260.226241.1165I=21.8, R=22.7, g=23.5, u=23.9, z=22.6SDSSQuery vizier around this object
44.5260.223341.1200B2=20.8, R1=19.6, R2=20.2USNO-B1Query vizier around this object

Queried USNO-B1, SDSS, 2MASS.

There are 327 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.