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Swift Trigger: 503652

Presumed name: GRB 110921A

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BAT 19h 36m 18.72s, +36° 22′ 37.2″
position:(294.078, 36.377 ± 180″)
XRT 19h 36m 23.59s, +36° 19′ 43.7″
position:(294.0983, +36.3288 ± 3.8″)
UVOT 19h 36m 15.24s, +36° 23′ 26.2″
position:(294.0635, +36.3906 ± 0.7″)
Galactic NHI:0.00×100 cm-2
Galactic E(B-V):0.134 mag
Best RA:19h 36m 15.24s= 294.0635 d
Best Dec:+36° 23′ 26.2″= +36.3906 d
Gal Lat:
Gal Long:
Sun angle:110.06°, -7.7 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

UVOT unknown image

unknown image

UVOT unknown image

unknown image

UVOT unknown image

unknown 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
64.5′′294.0780036.37700GCN #12373GRB 110921A: Swift detection of a burstVizier logo
154.5′′294.0941736.35550GCN #12383GRB 110921A� Swift-BAT refined analysisVizier logo
223.2′′294.0896736.33228GCN #12438GRB 110921A: optical observationsVizier logo
243.8′′294.0973536.32862GCN #12617GRB 110921A: optical observations in Maidanak observatoryVizier logo
244.0′′294.0978336.32872GCN #12385GRB 110921A: TNT astrometryVizier logo
244.7′′294.0974236.32836GCN #12387GRB 110921A: NOT observationsVizier logo
244.7′′294.0982136.32864GCN #12379GRB 110921A: Enhanced Swift-XRT positionVizier logo

There are 13 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
148.8294.046636.4296BD+36 3623B=9.74, H=9.289, J=9.300, K=9.243, V=9.63Query 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
25.1294.054836.3904B1=18.9, B2=19.0, R1=18.2, R2=19.0USNO-B1Query vizier around this object
30.5294.066536.3987I=17.4, R2=19.4USNO-B1Query vizier around this object
32.4294.061636.3817B1=19.9, B2=19.4, R2=19.6USNO-B1Query vizier around this object
43.4294.061236.4025B1=19.1, B2=19.3USNO-B1Query vizier around this object
52.8294.081736.3900B2=19.2, I=17.4, R1=17.9, R2=18.0USNO-B1Query vizier around this object
56.6294.064936.4063B1=17.6, B2=17.4, I=15.4, R1=16.1, R2=16.0USNO-B1Query vizier around this object
57.4294.075436.4033I=17.4, R1=16.2USNO-B1Query vizier around this object
60.0294.062536.4072B1=16.7, B2=16.8, I=15.6, R1=16.1, R2=16.1USNO-B1Query vizier around this object
61.2294.050536.4040I=17.3, R2=19.0USNO-B1Query vizier around this object
62.2294.084936.3905B1=13.7, B2=13.2, I=10.9, R1=12.0USNO-B1Query vizier around this object


There are 199 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
8.9294.062536.3930h=16.3, j=16.4, k=17.12MASSQuery vizier around this object
9.1294.062536.3930B1=18.9, B2=18.5, I=17.2, R1=17.7, R2=17.9USNO-B1Query vizier around this object
10.7294.067236.3906B1=18.3, B2=17.8, I=16.3, R1=17.4, R2=17.4USNO-B1Query vizier around this object
11.1294.067336.3909h=15.0, j=15.7, k=14.62MASSQuery vizier around this object
14.0294.065736.3941h=15.7, j=16.1, k=15.72MASSQuery vizier around this object
14.1294.065736.3941B1=18.0, B2=17.9, I=16.7, R1=17.2, R2=17.3USNO-B1Query vizier around this object
14.8294.065336.3868B1=17.1, B2=17.3, I=16.2, R1=16.4, R2=16.5USNO-B1Query vizier around this object
14.9294.065336.3867h=15.2, j=15.4, k=14.92MASSQuery vizier around this object
15.4294.058836.3886h=15.9, j=14.9, k=14.32MASSQuery vizier around this object
18.7294.058536.3873B1=15.6, B2=15.6, I=13.4, R1=14.4, R2=14.5USNO-B1Query vizier around this object

Queried USNO-B1, SDSS, 2MASS.

There are 767 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.