Swift Trigger: 568855

Presumed name: GRB 130831B

BAT	12^h 49^m 47.04^s, -29° 10′ 37.2″
position:	(192.446, -29.177 ± 180″)
XRT	12^h 49^m 40.70^s, -29° 11′ 01.0″
position:	(192.4196, -29.1836 ± 2.1″)
UVOT	No position available.
Galactic N_HI:	6.21×10²⁰ cm^-2
Galactic E(B-V):	NED unavailable

Best RA:	12^h 49^m 40.70^s	= 192.4196 d
Best Dec:	-29° 11′ 01.0″	= -29.1836 d

Gal Lat:	33.69
Gal Long:	302.47

Sun angle:	49.10°, -2.2 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

white image

Blink images with DSS (link via GSFC)

XRT SPER data

SPER results page for this trigger.

There are 5 SPER messages, and 1 objects have been found

- Object 1 - enhanced position.
- RA (J2000) : 12 49 40.75 (-29.1834)
- Dec (J2000): -29 11 00.2 ( -29.18368)
- Error (90%): 2.1
- Counts in Source: 330

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
2.7′′	192.42038	-29.18331	GCN #15149	GRB 130831B: Enhanced Swift-XRT position
3.5′′	192.42070	-29.18380	GCN #15141	GRB 130831B: Swift detection of a burst
108.1′′	192.45375	-29.18708	GCN #15163	GRB 130831B� 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
122.2	192.4525	-29.1655	HD 111472	B=10.53, H=6.528, J=7.099, K=6.336, V=9.24
125.6	192.3805	-29.1766	TYC 6696-728-1	B=12.33, V=12.19
127.5	192.4149	-29.1484	6dFGS gJ124939.6-290854	B=17.01, R=15.88

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
24.7	192.4118	-29.1837	B1=19.5, B2=17.6, I=16.8, R1=17.5, R2=16.7	USNO-B1
50.0	192.4047	-29.1787	B=22.4	SSS
74.4	192.4018	-29.1699	B=22.0, R2=20.1, i=18.0	SSS
88.1	192.4106	-29.2068	B=21.9	SSS
89.4	192.4139	-29.2079	B=21.5, R2=20.4	SSS
96.3	192.4422	-29.1656	I=18.1, R2=18.4	USNO-B1
97.9	192.4007	-29.2052	B=21.4	SSS
101.3	192.4212	-29.1555	I=18.8, R1=19.6, R2=19.8	USNO-B1
102.3	192.4014	-29.2072	B2=21.1, I=18.8, R2=20.1	USNO-B1
112.4	192.4069	-29.1544	B=21.9	SSS

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

There are 40 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
24.9	192.4117	-29.1839	h=15.7, j=16.5, k=15.5	2MASS
26.0	192.4275	-29.1815	B2=19.8, I=18.8, R1=19.1, R2=19.3	USNO-B1
37.4	192.4293	-29.1896	B2=20.6, I=19.3, R2=19.2	USNO-B1
39.5	192.4321	-29.1827	B2=20.8, R2=19.5	USNO-B1
55.2	192.4297	-29.1710	B2=21.7, I=19.3	USNO-B1
59.0	192.4261	-29.1682	h=14.6, j=15.5, k=14.5	2MASS
59.1	192.4262	-29.1682	B2=20.3, I=16.8, R1=18.4, R2=18.5	USNO-B1
65.2	192.4226	-29.2015	h=15.0, j=16.0, k=14.9	2MASS
65.3	192.4227	-29.2015	B1=20.3, B2=20.3, I=17.2, R1=18.6, R2=18.5	USNO-B1
67.3	192.4059	-29.1979	B1=18.1, B2=17.8, I=17.2, R1=17.0, R2=17.2	USNO-B1

Queried USNO-B1, SDSS, 2MASS.

There are 126 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.