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Swift Trigger: 791922

Presumed name: GRB 171123A

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

BAT	12h 24m 45.60s, +32° 31′ 51.6″
position:	(186.190, 32.531 ± 180″)
XRT	12h 24m 58.13s, +32° 30′ 11.9″
position:	(186.2422, 32.5033 ± 3.2″)
UVOT	No position available.
Galactic NHI:	1.79×100 cm-2
Galactic E(B-V):	0.019 mag

Best RA:	12h 24m 58.13s	= 186.2422 d
Best Dec:	+32° 30′ 11.9″	= 32.5033 d
Gal Lat:	82.14
Gal Long:	168.21
Sun angle:	73.20°, 3.5 hr West

¹Sper #12 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 13 SPER messages, and 1 objects have been found

• • Object 1 - enhanced position.
  • RA (J2000) : 12 24 58.12 (32.5033)
  • Dec (J2000): +32 30 11.9 ( 32.50325)
  • Error (90%): 3.2
  • Counts in Source: 13

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
0.9′′	186.24246	32.50317		GCN #22148	GRB 171123A: Swift detection of a burst
15.2′′	186.24641	32.50104		GCN #22150	GRB 171123A: Enhanced Swift-XRT position
17.0′′	186.24704	32.50094		GCN #22162	GRB 171123A: Tautenburg observations
133.2′′	186.19833	32.50347		GCN #22153	GRB 171123A: 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
45.6	186.2559	32.5086	FIRST J122501.4+323030
188.9	186.1806	32.5109	FIRST J122443.3+323039

* 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
10.6	186.2454	32.5046		R=21.8, g=22.9, i=22.8, u=22.5, z=21.0	SDSS
12.3	186.2408	32.5000		Mag=21.7	NED
26.6	186.2478	32.5090		B=21.1, R=18.4	APM-N
26.6	186.2483	32.5086		Mag=20.1	NED
35.9	186.2451	32.4936		R=21.9, g=23.3, i=21.3, u=23.5, z=21.1	SDSS
36.0	186.2450	32.4936		Mag=23.0	NED
38.0	186.2487	32.4943		R=21.4, g=22.2, i=21.6, u=24.3, z=21.3	SDSS
38.0	186.2486	32.4942		R=22.2, g=22.8, i=21.8, u=23.7, z=21.1	SDSS
38.0	186.2488	32.4942		Mag=20.0	NED
39.9	186.2341	32.4945		R=21.3, g=22.1, i=20.7, u=22.5, z=20.6	SDSS

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

There are 292 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
8.8	186.2396	32.5022	B2=21.1, R1=20.5, R2=20.7	USNO-B1
12.3	186.2408	32.5001	I=20.7, R=20.9, g=21.7, u=22.9, z=20.4	SDSS
26.6	186.2482	32.5087	I=17.8, R=18.7, g=20.1, u=22.7, z=17.3	SDSS
26.6	186.2482	32.5087	h=15.5, j=16.1, k=15.5	2MASS
26.9	186.2483	32.5087	B1=19.4, B2=19.7, I=17.0, R1=17.8, R2=18.3	USNO-B1
35.9	186.2472	32.5123	I=22.0, R=24.0, g=24.5, u=25.6, z=23.4	SDSS
36.0	186.2451	32.4936	I=21.8, R=22.3, g=22.9, u=22.8, z=21.4	SDSS
39.4	186.2345	32.4945	B2=21.9, R2=20.8	USNO-B1
43.6	186.2477	32.4921	I=22.4, R=22.8, g=23.7, u=23.8, z=21.9	SDSS
46.9	186.2554	32.4965	I=23.7, R=24.4, g=25.3, u=25.7, z=19.8	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.