Swift Trigger: 541200

Presumed name: GRB 121211A

BAT	13^h 02^m 10.56^s, +30° 09′ 39.6″
position:	(195.544, +30.161 ± 180″)
XRT	13^h 02^m 07.97^s, +30° 08′ 56.0″
position:	(195.5332, 30.1489 ± 4.8″)
UVOT	13^h 02^m 07.99^s, +30° 08′ 54.6″
position:	(195.5333, +30.1485 ± 1.1″)
Galactic N_HI:	9.49×10¹⁹ cm^-2
Galactic E(B-V):	NED unavailable

Best RA:	13^h 02^m 07.99^s	= 195.5333 d
Best Dec:	+30° 08′ 54.6″	= +30.1485 d

Gal Lat:	86.18
Gal Long:	85.71

Sun angle:	80.75°, 4.2 hr West

¹Sper #0 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

u image

white image

Blink images with DSS (link via GSFC)

XRT SPER data

SPER results page for this trigger.

No SPER data received yet. Refresh this page to check again.

Known transients within 5′ of the GRB

Click on the offset to view the transient announcement.

Offset (′′)	RA	Dec	Source	Misc
0.0′′	195.53329	30.14850	GCN #14063	GRB 121211A: Swift/UVOT Detection
0.4′′	195.53338	30.14858	GCN #14057	GRB 121211A: Swift detection of a burst with an optical counterpart
0.8′′	195.53317	30.14869	GCN #14060	GRB 121211A: Enhanced Swift-XRT position
156.9′′	195.57500	30.17300	GCN #14067	GRB 121211A: Swift-BAT refined analysis

Catalogue Searches. Searched 3.33′ around UVOT 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
105.5	195.5565	30.1271	[MC85] 24
158.6	195.5790	30.1680	CSO 794	B=18
164.9	195.5808	30.1688	[BCF91] 426	B=17.95, V=17.55
166.1	195.5687	30.1140	NGP9 F323-0428365
193.1	195.5920	30.1659	[MC85] 31

There are 5 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
6.0	195.5346	30.1472	B=22.1, R=20.0	APM-N
11.5	195.5307	30.1508	R=21.9, g=23.0, i=21.9, u=22.6, z=21.4	SDSS
11.5	195.5308	30.1508	Mag=22.6	NED
29.2	195.5379	30.1556	Mag=21.6	NED
30.3	195.5378	30.1560	B2=21.4, R1=20.3, R2=20.2	USNO-B1
36.5	195.5247	30.1417	R=22.7, g=23.6, i=21.5, u=24.5, z=21.4	SDSS
46.7	195.5483	30.1493	R=23.0, g=24.0, i=21.7, u=25.7, z=21.0	SDSS
54.1	195.5358	30.1633	Mag=23.0	NED
54.1	195.5360	30.1633	R=22.0, g=23.1, i=22.8, u=26.1, z=22.0	SDSS
54.4	195.5158	30.1492	Mag=18.3	NED

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

There are 263 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
29.2	195.5378	30.1556	I=20.3, R=20.7, g=21.6, u=23.7, z=20.1	SDSS
32.7	195.5293	30.1569	I=23.3, R=23.6, g=22.8, u=24.3, z=22.7	SDSS
44.4	195.5194	30.1510	h=15.9, j=17.0, k=15.8	2MASS
44.9	195.5192	30.1511	I=20.3, R=22.9, g=24.3, u=24.8, z=18.8	SDSS
52.5	195.5243	30.1362	B1=20.9, R1=20.3, R2=20.4	USNO-B1
54.3	195.5159	30.1493	B1=18.3, B2=18.3, I=16.2, R1=16.6, R2=16.8	USNO-B1
54.4	195.5159	30.1492	I=16.9, R=17.3, g=18.3, u=20.7, z=16.7	SDSS
54.5	195.5158	30.1493	h=14.8, j=15.6, k=14.8	2MASS
64.5	195.5298	30.1309	B2=21.1, I=18.1, R1=18.9, R2=19.4	USNO-B1
64.6	195.5297	30.1308	I=18.3, R=19.4, g=20.7, u=23.3, z=17.7	SDSS

Queried USNO-B1, SDSS, 2MASS.

There are 133 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.