Swift Trigger: 577968

Presumed name: GRB 131117A

BAT	22^h 09^m 21.36^s, -31° 43′ 19.2″
position:	(332.339, -31.722 ± 180″)
XRT	22^h 09^m 19.49^s, -31° 45′ 44.3″
position:	(332.3312, -31.7623 ± 2.1″)
UVOT	No position available.
Galactic N_HI:	1.41×10²⁰ cm^-2
Galactic E(B-V):	NED unavailable

Best RA:	22^h 09^m 19.49^s	= 332.3312 d
Best Dec:	-31° 45′ 44.3″	= -31.7623 d

Gal Lat:	-54.61
Gal Long:	15.47

Sun angle:	88.29°, -6.7 hr East of Sun

¹Sper #4 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.

There are 4 SPER messages, and 1 objects have been found

- Object 1 - enhanced position.
- RA (J2000) : 22 09 19.49 (-31.7621)
- Dec (J2000): -31 45 43.5 ( -31.76088)
- Error (90%): 2.1
- Counts in Source: 149

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
0.3′′	332.33112	-31.76236	GCN #15492	GRB 131117A: Enhanced Swift-XRT position
1.6′′	332.33067	-31.76231	GCN #15496	GRB 131117A: Swift/UVOT Detection
2.4′′	332.33042	-31.76233	GCN #15491	GRB 131117A: Skynet PROMPT optical detection of an afterglow
6.3′′	332.33121	-31.76056	GCN #15490	GRB 131117A: Swift detection of a burst
69.9′′	332.35400	-31.76100	GCN #15499	GRB 131117A� Swift-BAT refined analysis
69.9′′	332.35400	-31.76100	GCN #15500	GRB 131117A� Swift-BAT refined analysis

There are 12 matches in total. See the full table for details.

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
57.9	332.3125	-31.7644	2dFGRS TGS409Z165	B=19.139, R=18.178
157.2	332.3019	-31.7265	[VV2006] J220912.5-314336	B=20.12

* 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
44.0	332.3199	-31.7548		B=22.2, R2=21.0, i=19.0	SSS
44.4	332.3362	-31.7739		Mag=19.3	NED
47.4	332.3293	-31.7754		B=22.0	SSS
52.3	332.3200	-31.7514		B1=21.2, I=18.7, R2=20.7	USNO-B1
53.0	332.3153	-31.7682		B=21.8, R2=20.3	SSS
57.8	332.3124	-31.7642		B=19.2, R2=18.0, i=17.5	SSS
57.8	332.3125	-31.7644	0.150140	Mag=19.17	NED
62.9	332.3341	-31.7796		B=22.5	SSS
63.1	332.3462	-31.7503		B=21.4, R2=21.1	SSS
77.0	332.3563	-31.7632		B=21.8, R2=20.0	SSS

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

There are 87 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
26.3	332.3297	-31.7695	B2=21.4, I=17.6, R1=18.5	USNO-B1
31.1	332.3410	-31.7601	I=18.7, R1=19.3	USNO-B1
32.3	332.3414	-31.7600	B2=17.0, I=18.8, R1=19.3, R2=20.0	USNO-B1
40.8	332.3185	-31.7588	B1=20.8, B2=21.0, R1=19.6, R2=19.8	USNO-B1
42.5	332.3201	-31.7552	B1=21.1, R2=20.8	USNO-B1
45.0	332.3360	-31.7741	B1=20.7, B2=20.2, R1=19.4, R2=19.6	USNO-B1
47.5	332.3332	-31.7754	B1=14.6, B2=15.1, I=12.7, R1=12.8, R2=13.1	USNO-B1
47.9	332.3332	-31.7755	h=12.3, j=12.7, k=12.3	2MASS
50.8	332.3199	-31.7519	B1=20.4, B2=20.8, I=18.5, R1=18.5, R2=18.2	USNO-B1
51.6	332.3477	-31.7593	B1=20.7, B2=20.7, R2=20.0	USNO-B1

Queried USNO-B1, SDSS, 2MASS.

There are 130 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.