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Swift Trigger: 522578

Presumed name: GRB 120521A

Back to trigger list.

BAT 09h 54m 46.32s, -49° 25′ 08.4″
position:(148.693, -49.419 ± 180″)
XRT 09h 54m 53.95s, -49° 25′ 01.9″
position:(148.7248, -49.4172 ± 2.3″)
UVOT No position available.
Galactic NHI:2.08×1021 cm-2
Galactic E(B-V):0.430 mag
Best RA:09h 54m 53.95s= 148.7248 d
Best Dec:-49° 25′ 01.9″= -49.4172 d
Gal Lat:3.97
Gal Long:275.93
Sun angle:105.51°, -6.0 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 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 5 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
0.6′′148.72462-49.41733GCN #13304GRB 120521A: Enhanced Swift-XRT positionVizier logo
2.1′′148.72544-49.41760GCN #13302GRB 120521A: Swift detection of a short burstVizier logo
78.2′′148.69208-49.42161GCN #13310GRB 120521A: Swift-BAT refined analysisVizier 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
170.3148.7904-49.43772MASX J09550969-4926156B=17.0, H=12.137, J=12.664, K=11.675Query 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
6.2148.7237-49.4156B2=19.1, R2=19.2USNO-B1Query vizier around this object
11.0148.7202-49.4166B=20.8, R2=19.8SSSQuery vizier around this object
11.2148.7288-49.4189B=21.2, R2=20.1SSSQuery vizier around this object
27.9148.7364-49.4190B=19.0, R2=17.6, i=17.4SSSQuery vizier around this object
28.8148.7140-49.4210B2=17.9, I=17.1, R1=17.3, R2=17.8USNO-B1Query vizier around this object
30.2148.7356-49.4126B2=18.7, R1=17.9, R2=18.2USNO-B1Query vizier around this object
31.6148.7114-49.4160B=18.5, R2=14.3SSSQuery vizier around this object
34.6148.7101-49.4161B=18.4, R2=14.3, i=15.5SSSQuery vizier around this object
37.9148.7087-49.4166B=19.5SSSQuery vizier around this object
38.9148.7373-49.4101B=21.1SSSQuery vizier around this object


There are 137 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
12.6148.7233-49.4205B2=18.8, R2=18.7USNO-B1Query vizier around this object
13.6148.7226-49.4137B2=18.4, R1=17.8, R2=18.6USNO-B1Query vizier around this object
15.2148.7216-49.4209B2=18.7, R1=17.9, R2=18.5USNO-B1Query vizier around this object
17.9148.7192-49.4206B2=18.9, R1=18.0USNO-B1Query vizier around this object
18.3148.7229-49.4123h=15.4, j=16.3, k=15.32MASSQuery vizier around this object
21.1148.7288-49.4224h=15.1, j=15.5, k=15.02MASSQuery vizier around this object
21.2148.7289-49.4224B2=17.2, I=16.2, R1=16.5, R2=16.8USNO-B1Query vizier around this object
21.3148.7319-49.4209h=15.7, j=16.3, k=16.02MASSQuery vizier around this object
21.7148.7321-49.4209B2=18.6, R1=17.8USNO-B1Query vizier around this object
26.9148.7361-49.4185h=15.6, j=16.4, k=15.42MASSQuery vizier around this object

Queried USNO-B1, SDSS, 2MASS.

There are 870 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.