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Swift Trigger: 530689

Presumed name: GRB 120811C

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Related pages: Burst Analyser | Enhanced position | Light curve | Spectrum | Image | XRT Catalogue entry | Download obs data | GCN Notices

BAT	13h 18m 50.16s, +62° 17′ 27.6″
position:	(199.709, +62.291 ± 180″)
XRT	13h 18m 43.92s, +62° 18′ 01.1″
position:	(199.6830, 62.3003 ± 2.0″)
UVOT	13h 18m 43.80s, +62° 18′ 02.5″
position:	(199.6825, +62.3007 ± 0.8″)
Galactic NHI:	2.09×1020 cm-2
Galactic E(B-V):	NED unavailable

Best RA:	13h 18m 43.80s	= 199.6825 d
Best Dec:	+62° 18′ 02.5″	= +62.3007 d
Gal Lat:	54.54
Gal Long:	117.47
Sun angle:	62.13°, -3.9 hr East of Sun

¹Sper #6 auto processing.

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GCN Notices for this burst.

View this region in Aladin.

Observability of this burst for Swift.

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Sun angle for this burst.

UVOT data

Blink images with DSS (link via GSFC)

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XRT SPER data

SPER results page for this trigger.

There are 7 SPER messages, and 1 objects have been found

• • Object 1 - enhanced position.
  • RA (J2000) : 13 18 43.91 (62.3003)
  • Dec (J2000): +62 18 01.2 ( 62.30272)
  • Error (90%): 2.0
  • Counts in Source: 850

See the SPER page for details of how this position was produced.

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Known transients within 5′ of the GRB

Click on the offset to view the transient announcement.

Offset (′′)	RA	Dec	Date reported	Source	Misc	Query
0.2′′	199.68254	62.30075		GCN #13622	GRB 120811C: Swift detection of a burst with an optical counterpart
0.2′′	199.68263	62.30072		GCN #13626	GRB 120811C: RTT150 optical observations
0.3′′	199.68258	62.30078		GCN #13629	GRB 120811C: Swift/UVOT Detection
0.6′′	199.68283	62.30067		GCN #13625	GRB 120811C: Enhanced Swift-XRT position
0.6′′	199.68233	62.30056		GCN #13635	GRB 120811C: MASTER-Tunka OT observations
1.5′′	199.68338	62.30075		GCN #13623	GRB 120811C: MASTER-Amur observations of fading OT
1.5′′	199.68325	62.30094		GCN #13679	GRB 120811C: optical observations
17.0′′	199.68958	62.29731		GCN #13634	GRB 120811C: Swift-BAT refined analysis

There are 17 matches in total. See the full table for details.

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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
52.5	199.6518	62.2986	SDSS J131836.44+621754.8	g=19.006, i=16.972, r=17.558, u=21.565, z=16.583
169.2	199.7812	62.2892	[VV2006] J131907.5+621721	V=19.356, g=19.350, i=19.272, r=19.172, u=21.33, z=19.18

* 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*	Redshift		Catalogue	Query
6.6	199.6792	62.2997		Mag=23.2	NED
10.9	199.6831	62.2973		I=19.0, R1=20.0	USNO-B1
11.4	199.6874	62.2979		R=21.8, g=23.2, i=21.5, u=23.1, z=23.3	SDSS
11.4	199.6835	62.2971		R=20.2, g=21.8, i=19.7, u=22.2, z=19.2	SDSS
12.2	199.6830	62.2969		B=21.5, R=19.1	APM-N
13.0	199.6833	62.2972		Mag=21.7	NED
14.2	199.6904	62.3022		R=21.5, g=22.6, i=21.2, u=25.3, z=20.7	SDSS
14.3	199.6904	62.3022		Mag=22.5	NED
18.5	199.6905	62.2965		B2=20.1, R2=20.2	USNO-B1
21.5	199.6913	62.2964		Mag=21.0	NED

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

There are 437 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	Query
6.8	199.6791	62.2998	I=20.1, R=21.4, g=23.2, u=23.5, z=19.4	SDSS
11.3	199.6836	62.2972	I=19.1, R1=19.6, R2=20.1	USNO-B1
19.3	199.6716	62.3012	I=23.9, R=24.2, g=23.2, u=25.5, z=22.9	SDSS
19.9	199.6915	62.2964	I=18.1, R=19.5, g=21.0, u=23.7, z=17.2	SDSS
20.0	199.6916	62.2964	h=14.9, j=15.6, k=14.8	2MASS
21.0	199.6911	62.2959	B2=20.1, I=15.1, R1=14.4	USNO-B1
22.9	199.6909	62.2951	B1=15.9, B2=15.8, I=12.9, R1=14.2, R2=14.5	USNO-B1
23.4	199.6910	62.2950	h=12.1, j=12.8, k=12.0	2MASS
23.5	199.6909	62.2949	I=14.4, R=16.1, g=16.3, u=18.7, z=14.0	SDSS
26.9	199.6821	62.2928	I=22.4, R=23.4, g=23.3, u=23.5, z=22.1	SDSS

Queried USNO-B1, SDSS, 2MASS.

There are 177 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.