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Swift Trigger: 536172

Presumed name: GRB 121017A

Back to trigger list.

BAT 19h 15m 15.84s, -01° 35′ 42.0″
position:(288.816, -1.595 ± 180″)
XRT 19h 15m 19.25s, -01° 36′ 15.1″
position:(288.8302, -1.6042 ± 2.2″)
UVOT No position available.
Galactic NHI:2.22×1021 cm-2
Galactic E(B-V):NED unavailable
Best RA:19h 15m 19.25s= 288.8302 d
Best Dec:-01° 36′ 15.1″= -1.6042 d
Gal Lat:-6.05
Gal Long:34.23
Sun angle:85.78°, -5.7 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 3 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′′288.83020-1.60420GCN #13875GRB 121017A: Swift detection of a burstVizier logo
0.2′′288.83025-1.60417GCN #13879GRB 121017A: Enhanced Swift-XRT positionVizier logo
37.5′′288.82000-1.60203GCN #13880GRB 121017A: 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

* 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
2.7288.8310-1.6043B2=21.6, R2=18.6USNO-B1Query vizier around this object
6.9288.8286-1.6031B1=17.0, B2=16.9, I=15.3, R1=16.0, R2=15.8USNO-B1Query vizier around this object
11.9288.8305-1.6075B2=19.6, R2=17.7USNO-B1Query vizier around this object
13.3288.8272-1.6064B2=19.7, R2=17.2USNO-B1Query vizier around this object
14.2288.8341-1.6050B1=20.2, B2=20.0, R2=17.6USNO-B1Query vizier around this object
15.6288.8271-1.6012B1=18.3, B2=17.1, R1=17.0, R2=16.1USNO-B1Query vizier around this object
15.8288.8258-1.6040B1=19.9, B2=19.2, R2=17.3USNO-B1Query vizier around this object
18.0288.8329-1.6084B2=20.9, I=15.8, R2=18.4USNO-B1Query vizier around this object
18.9288.8342-1.6008B1=19.1, B2=18.2, I=17.1, R1=17.3, R2=16.6USNO-B1Query vizier around this object
20.5288.8250-1.6065B2=19.4, R2=17.9USNO-B1Query vizier around this object


There are 1039 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
6.5288.8287-1.6032h=13.9, j=14.4, k=14.02MASSQuery vizier around this object
12.4288.8283-1.6014h=15.5, j=16.4, k=16.42MASSQuery vizier around this object
12.7288.8280-1.6015B1=17.9, B2=16.9, I=16.9, R1=17.2, R2=16.3USNO-B1Query vizier around this object
14.5288.8342-1.6050h=15.2, j=16.4, k=16.42MASSQuery vizier around this object
16.4288.8340-1.6017B1=20.3, B2=19.0, R2=16.8USNO-B1Query vizier around this object
16.5288.8268-1.6011h=15.1, j=16.2, k=16.22MASSQuery vizier around this object
16.7288.8292-1.6087B2=20.7, R2=18.3USNO-B1Query vizier around this object
17.5288.8317-1.6088B2=20.9, I=15.7, R2=19.2USNO-B1Query vizier around this object
18.0288.8258-1.6066B2=19.3, R2=17.8USNO-B1Query vizier around this object
18.7288.8349-1.6065B2=21.0, R2=18.5USNO-B1Query vizier around this object

Queried USNO-B1, SDSS, 2MASS.

There are 1002 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.