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Swift Trigger: 721234

Presumed name: GRB 161108A

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

BAT	12h 03m 08.16s, +24° 52′ 08.4″
position:	(180.784, 24.869 ± 180″)
XRT	12h 03m 09.02s, +24° 52′ 04.7″
position:	(180.78757, 24.86796 ± 3.7″)
UVOT	No position available.
Galactic NHI:	1.69×100 cm-2
Galactic E(B-V):	0.021 mag

Best RA:	12h 03m 09.02s	= 180.78757 d
Best Dec:	+24° 52′ 04.7″	= 24.86796 d
Gal Lat:	78.92
Gal Long:	222
Sun angle:	58.73°, 2.8 hr West

¹Sper #3 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 3 SPER messages, and 1 objects have been found

• • Object 1
  • RA (J2000) : 12 03 09.02 ( 180.78757)
  • Dec (J2000): +24 52 04.7 ( 24.86796)
  • Error (90%): 3.687"
  • Counts in Source: 94

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
0.3′′	180.78750	24.86800		GCN #20145	GRB 161108A: Swift detection of a burst
1.3′′	180.78796	24.86803		GCN #20146	GRB 161108A: NOT candidate afterglow
1.4′′	180.78794	24.86815		GCN #20147	GRB 161108A: Enhanced Swift-XRT position
138.6′′	180.77600	24.90500		GCN #20151	GRB 161108A� Swift-BAT refined analysis

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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
90.5	180.7643	24.8816	[SPD2011] 29352
98.2	180.7582	24.8739	SDSS J120301.97+245225.9	g=20.85, i=19.55, r=20.09, u=21.3, z=19.5
111.8	180.7607	24.8871	SDSS J120302.55+245313.6	g=22.0, i=19.76, r=20.48, u=24.5, z=19.3
113.1	180.7581	24.8844	SDSS J120301.93+245303.7	g=21.28, i=18.75, r=19.66, u=23.2, z=18.27
117.8	180.8066	24.8402	TYC 1986-1764-1	B=11.64, H=10.379, J=10.635, K=10.338, V=11.66
131.6	180.7560	24.8907	[VV2010] J120301.4+245326	B=19.67, V=19.47, g=19.178, i=19.064, r=19.108, u=19.510, z=18.809

There are 6 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*	Redshift		Catalogue	Query
1.1	180.7879	24.8681		Mag=23.5	NED
1.1	180.7879	24.8680		R=22.2, g=23.3, i=21.7, u=24.0, z=21.5	SDSS
1.9	180.7881	24.8682		B=21.9, R=20.0	APM-N
11.6	180.7855	24.8706		R=22.3, g=22.8, i=22.3, u=23.9, z=21.5	SDSS
11.6	180.7854	24.8706		Mag=22.7	NED
25.4	180.7829	24.8736		Mag=23.5	NED
25.5	180.7830	24.8737		R=21.5, g=23.2, i=21.0, u=22.9, z=20.9	SDSS
34.1	180.7979	24.8697		Mag=24.8	NED
34.7	180.7804	24.8750		Mag=21.7	NED
34.8	180.7804	24.8751		R=21.5, g=22.0, i=20.6, u=22.5, z=19.5	SDSS

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

There are 467 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
27.9	180.7932	24.8621	B1=21.0, R1=19.9	USNO-B1
34.2	180.7979	24.8697	I=22.5, R=22.6, g=24.9, u=23.9, z=21.6	SDSS
37.9	180.7920	24.8777	B2=21.2, R1=20.2, R2=20.3	USNO-B1
42.2	180.7952	24.8585	B2=21.1, I=18.9, R1=19.6, R2=19.4	USNO-B1
48.6	180.7888	24.8814	I=22.8, R=22.5, g=22.9, u=24.8, z=21.3	SDSS
58.4	180.7728	24.8588	B1=20.9, B2=21.6	USNO-B1
59.7	180.7943	24.8526	I=25.2, R=25.8, g=25.2, u=24.7, z=19.7	SDSS
75.0	180.7966	24.8488	I=23.4, R=23.7, g=23.2, u=24.1, z=21.8	SDSS
75.7	180.7802	24.8879	R1=19.9, R2=20.4	USNO-B1
76.1	180.7765	24.8865	I=22.0, R=22.7, g=23.7, u=25.6, z=21.7	SDSS

Queried USNO-B1, SDSS, 2MASS.

There are 138 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.