Swift Trigger: 533268

Presumed name: GRB 120911A

BAT	23^h 51^m 50.64^s, +63° 05′ 56.4″
position:	(357.961, +63.099 ± 180″)
XRT	23^h 51^m 55.56^s, +63° 05′ 53.9″
position:	(357.98152, 63.09831 ± 4.4″)
UVOT	No position available.
Galactic N_HI:	6.66×10²¹ cm^-2
Galactic E(B-V):	NED unavailable

Best RA:	23^h 51^m 55.56^s	= 357.98152 d
Best Dec:	+63° 05′ 53.9″	= 63.09831 d

Gal Lat:	1
Gal Long:	116.26

Sun angle:	112.17°, 11.4 hr West

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

white image

Blink images with DSS (link via GSFC)

XRT SPER data

SPER results page for this trigger.

There are 13 SPER messages, and 1 objects have been found

- Object 1
- RA (J2000) : 23 51 55.84 ( 357.98266)
- Dec (J2000): +63 05 54.1 ( 63.09836)
- Error (90%): 3.688"
- Counts in Source: 110

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	Dec	Source	Misc
0.0′′	357.98152	63.09831	GCN #13746	GRB 120911A: Swift-XRT observations
4.4′′	357.97897	63.09874	GCN #13748	GRB 120911A: Enhanced Swift-XRT position
5.8′′	357.98358	63.09700	GCN #13747	GRB 120911A: Faulkes Telescope North observations
31.0′′	357.96250	63.09861	GCN #13744	GRB 120911A: Swift detection of a burst
37.7′′	357.96625	63.09044	GCN #13749	GRB 120911A: Swift-BAT refined analysis

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).

SIMBAD

	RA*	Dec*	SIMBAD name		Query
160.2	357.9491	63.0563	TYC 4285-929-1	B=13.01, V=12.44
165.0	357.8986	63.0720	TYC 4285-831-1	B=12.12, V=10.47

* RA/Dec in equinox J2000

X-ray sources

	RA*	Dec*		Source table²	Observatory	Query

Queried the X-ray MASTER catalogue.

* RA/Dec in equinox J2000

¹Energy band for count-rate is mission specific.

Galaxies

	RA*	Dec*		Catalogue
5.5	357.9815	63.0968	B1=18.7, B2=19.0, I=18.2, R1=18.2, R2=18.2	USNO-B1
6.2	357.9817	63.0966	B1=19.8, B2=18.6, I=18.2, R2=17.9	USNO-B1
12.9	357.9882	63.1003	B2=21.0, I=18.9, R1=19.2, R2=19.2	USNO-B1
19.0	357.9720	63.1014	B1=19.9, B2=20.6, I=18.1, R1=18.3, R2=18.9	USNO-B1
19.6	357.9925	63.0961	B2=20.9, I=18.8, R1=19.1	USNO-B1
20.2	357.9929	63.0961	B2=21.0, I=18.1, R1=18.8, R2=19.6	USNO-B1
22.1	357.9686	63.1001	B1=19.8, B2=20.1, I=18.0, R1=18.6, R2=19.0	USNO-B1
23.0	357.9675	63.0991	B2=19.0, I=17.6, R2=18.9	USNO-B1
23.7	357.9670	63.0985	B1=19.1, B2=18.8, I=17.6, R1=17.9, R2=17.5	USNO-B1
30.8	357.9927	63.1052	I=19.2, R1=19.3	USNO-B1

Queried APM-N, SDSS, PSCz, SSS, NED, 2MASSX, USNO-B1.

There are 332 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

Stars

	RA*	Dec*		Catalogue
9.7	357.9864	63.0999	B2=21.4, I=18.9, R1=19.4, R2=19.2	USNO-B1
9.8	357.9829	63.0957	B1=18.0, B2=17.1, I=16.4, R1=16.6, R2=16.4	USNO-B1
10.2	357.9830	63.0956	h=15.1, j=15.4, k=14.8	2MASS
11.4	357.9768	63.0960	B1=18.1, B2=17.4, I=16.6, R1=16.6, R2=16.5	USNO-B1
11.5	357.9769	63.0959	h=14.8, j=15.2, k=14.7	2MASS
11.5	357.9874	63.1001	B2=21.3, I=18.4, R2=18.8	USNO-B1
11.6	357.9874	63.0965	h=16.1, j=16.8, k=15.9	2MASS
13.2	357.9739	63.0996	h=12.1, j=12.9, k=11.9	2MASS
13.3	357.9740	63.0997	B1=17.8, B2=16.6, I=14.7, R1=15.3, R2=15.2	USNO-B1
14.8	357.9905	63.0988	B1=19.4, B2=19.5, I=17.8, R1=18.7, R2=18.9	USNO-B1

Queried USNO-B1, SDSS, 2MASS.

There are 831 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.