Swift Trigger: 522656

Presumed name: GRB 120521C

BAT	14^h 17^m 09.60^s, +42° 07′ 22.8″
position:	(214.290, +42.123 ± 180″)
XRT	14^h 17^m 08.93^s, +42° 08′ 35.1″
position:	(214.28722, 42.14309 ± 3.9″)
UVOT	No position available.
Galactic N_HI:	1.05×10²⁰ cm^-2
Galactic E(B-V):	0.009 mag

Best RA:	14^h 17^m 08.93^s	= 214.28722 d
Best Dec:	+42° 08′ 35.1″	= 42.14309 d

Gal Lat:	66.96
Gal Long:	79.13

Sun angle:	113.46°, -10.3 hr East of Sun

¹Sper #2 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 2 SPER messages, and 1 objects have been found

- Object 1
- RA (J2000) : 14 17 08.93 ( 214.28722)
- Dec (J2000): +42 08 35.1 ( 42.14309)
- Error (90%): 3.884"
- Counts in Source: 64

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
1.4′′	214.28671	42.14311	GCN #13318	GRB 120521C: Swift detection of a burst
3.9′′	214.28800	42.14400	GCN #13333	GRB 120521C: Swift-BAT refined analysis
6.0′′	214.28650	42.14467	GCN #13324	GRB 120521C: Enhanced Swift-XRT position
6.3′′	214.28668	42.14478	GCN #13344	GRB 120521C: EVLA Localization of Afterglow
162.4′′	214.26182	42.10212	GCN #13337	GRB 120521C: Early Tautenburg limits

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
22.2	214.2937	42.1392	2MASS J14171050+4208213	H=13.017, J=13.705, K=12.838, g=18.299, i=15.759, r=16.899, u=21.022, z=15.374
175.6	214.2921	42.0944	NVSS J141710+420539
183.1	214.2208	42.1303	NVSS J141653+420753

There are 3 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
20.2	214.2934	42.1398	B=19.1, R=15.8	APM-N
21.9	214.2932	42.1472	R=22.9, g=23.4, i=22.2, u=24.1, z=21.4	SDSS
21.9	214.2933	42.1472	Mag=23.3	NED
22.4	214.2937	42.1392	Mag=18.3	NED
24.6	214.2942	42.1386	Mag=20.8	NED
25.1	214.2800	42.1475	Mag=22.8	NED
25.2	214.2924	42.1489	R=22.5, g=22.9, i=21.5, u=23.7, z=21.8	SDSS
25.2	214.2779	42.1436	Mag=20.2	NED
29.4	214.2979	42.1410	R=22.3, g=23.8, i=21.9, u=24.9, z=21.0	SDSS
29.5	214.2979	42.1411	Mag=23.9	NED

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

There are 367 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
18.0	214.2914	42.1392	I=21.7, R=23.1, g=24.0, u=23.8, z=20.7	SDSS
22.3	214.2938	42.1393	h=13.0, j=13.7, k=12.8	2MASS
22.4	214.2938	42.1392	I=15.8, R=16.9, g=18.3, u=21.0, z=15.4	SDSS
22.6	214.2939	42.1392	B1=19.5, B2=18.5, I=14.7, R1=16.1, R2=16.1	USNO-B1
24.6	214.2943	42.1387	I=17.8, R=19.3, g=20.8, u=24.3, z=17.0	SDSS
25.1	214.2799	42.1475	I=20.1, R=21.2, g=22.8, u=24.5, z=19.5	SDSS
25.2	214.2778	42.1437	I=17.5, R=18.7, g=20.2, u=22.9, z=16.9	SDSS
25.3	214.2778	42.1437	h=15.1, j=15.6, k=14.7	2MASS
25.4	214.2777	42.1437	B1=20.7, B2=20.4, I=17.2, R1=18.0, R2=18.4	USNO-B1
29.3	214.2974	42.1461	I=21.7, R=23.4, g=24.4, u=24.9, z=21.3	SDSS

Queried USNO-B1, SDSS, 2MASS.

There are 172 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.