Swift Trigger: 453747

Presumed name: GRB 110520A

BAT	08^h 57^m 30.00^s, +56° 24′ 07.2″
position:	(134.375, 56.402 ± 180″)
XRT	08^h 57^m 21.65^s, +56° 25′ 37.2″
position:	(134.3402, 56.4270 ± 2.2″)
UVOT	No position available.
Galactic N_HI:	0.00×10⁰ cm^-2
Galactic E(B-V):	0.026 mag

Best RA:	08^h 57^m 21.65^s	= 134.3402 d
Best Dec:	+56° 25′ 37.2″	= 56.4270 d

Gal Lat:
Gal Long:

Sun angle:	66.45°, -5.2 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

unknown image

Blink images with DSS (link via GSFC)

XRT SPER data

SPER results page for this trigger.

There are 10 SPER messages, and 1 objects have been found

- Object 1 - enhanced position.
- RA (J2000) : 08 57 21.64 (56.4271)
- Dec (J2000): +56 25 37.7 ( 56.42743)
- Error (90%): 2.1
- Counts in Source: 600

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
1.7′′	134.34074	56.42735	GCN #12027	GRB 110520A: Enhanced Swift-XRT position
3.4′′	134.34100	56.42783	GCN #12025	GRB 110520A - NOT optical observation
3.6′′	134.34175	56.42648	GCN #12026	GRB 110520A: WHT IR observations
3.8′′	134.34208	56.42720	GCN #12020	GRB 110520A: Swift detection of a burst
55.6′′	134.36292	56.41803	GCN #12030	GRB 110520A: 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
1.7	134.3408	56.4274	GRB 110520A
74.8	134.3766	56.4218	USNO-B1.0 1464-00205280	B=20.6, R=18.9
128.4	134.3868	56.4517	2MASX J08573282+5627061	H=13.827, J=14.628, K=13.559
178.1	134.2512	56.4217	NVSS J085700+562522

There are 4 SIMBAD objects within the position error. The full list is here.

* 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
8.5	134.3430	56.4288	R=21.9, g=22.7, i=22.0, u=23.2, z=21.6	SDSS
8.5	134.3429	56.4289	Mag=22.5	NED
17.1	134.3401	56.4222	R=21.6, g=24.2, i=20.8, u=24.9, z=20.1	SDSS
26.8	134.3354	56.4340	R=21.1, g=23.0, i=20.7, u=23.6, z=20.4	SDSS
26.8	134.3354	56.4339	Mag=22.2	NED
28.1	134.3341	56.4200	B=22.0, R=19.6	APM-N
31.8	134.3258	56.4233	Mag=21.2	NED
31.8	134.3257	56.4233	R=20.7, g=21.6, i=20.5, u=22.1, z=20.3	SDSS
33.2	134.3396	56.4361	Mag=20.6	NED
33.3	134.3396	56.4362	R=19.7, g=20.6, i=19.6, u=21.4, z=19.4	SDSS

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

There are 345 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
31.6	134.3257	56.4234	B2=20.8, R1=19.3, R2=19.7	USNO-B1
33.4	134.3396	56.4363	B1=20.3, B2=20.7, I=18.6, R1=19.2, R2=19.4	USNO-B1
37.8	134.3234	56.4222	I=21.2, R=22.0, g=23.5, u=23.2, z=20.8	SDSS
42.2	134.3467	56.4382	I=21.1, R=22.6, g=24.8, u=24.1, z=20.5	SDSS
50.1	134.3603	56.4187	I=21.8, R=24.2, g=25.5, u=23.2, z=21.5	SDSS
52.0	134.3656	56.4236	h=16.3, j=16.6, k=16.1	2MASS
52.4	134.3658	56.4236	B1=19.6, B2=19.6, I=17.7, R1=18.5, R2=18.3	USNO-B1
52.5	134.3658	56.4234	I=18.1, R=18.4, g=19.1, u=21.0, z=17.9	SDSS
52.5	134.3139	56.4284	I=21.3, R=22.7, g=24.7, u=26.2, z=21.1	SDSS
54.6	134.3512	56.4131	R1=19.4, R2=19.6	USNO-B1

Queried USNO-B1, SDSS, 2MASS.

There are 174 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.