Swift Trigger: 785510

Presumed name: GRB 171102B

BAT	19^h 12^m 24.72^s, +22° 26′ 16.8″
position:	(288.103, 22.438 ± 180″)
XRT	19^h 12^m 18.53^s, +22° 26′ 39.8″
position:	(288.0772, 22.4444 ± 2.0″)
UVOT	No position available.
Galactic N_HI:	3.07×10⁰ cm^-2
Galactic E(B-V):	0.797 mag

Best RA:	19^h 12^m 18.53^s	= 288.0772 d
Best Dec:	+22° 26′ 39.8″	= 22.4444 d

Gal Lat:	5.7
Gal Long:	55.27

Sun angle:	78.33°, -4.7 hr East of Sun

¹Sper #8 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 8 SPER messages, and 1 objects have been found

- Object 1
- RA (J2000) : 19 12 18.73 ( 288.07806)
- Dec (J2000): +22 26 42.4 ( 22.44512)
- Error (90%): 3.551"
- Counts in Source: 266

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
2.2′′	288.07787	22.44433	GCN #22084	GRB 171102B: Enhanced Swift-XRT position
3.1′′	288.07775	22.44511	GCN #22082	GRB 171102B: Swift detection of a burst
72.0′′	288.09583	22.43422	GCN #22088	GRB 171102B: 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
119.8	288.0833	22.4772	LEDA 2814929
133.3	288.1102	22.4234	TYC 1611-486-1	B=12.91, G=10.901, H=8.455, J=9.052, K=8.36, V=11.52
141.0	288.0417	22.4658	LEDA 2814922

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
5.3	288.0788	22.4442	B1=20.8, B2=19.4, I=18.3, R2=18.4	USNO-B1
10.0	288.0761	22.4418	B1=18.9, B2=17.6, I=16.5, R1=17.0, R2=16.5	USNO-B1
13.6	288.0802	22.4418	B1=17.9, B2=16.9, I=16.6, R1=16.7, R2=16.2	USNO-B1
15.1	288.0735	22.4420	B1=19.0, B2=17.5, I=16.4, R1=17.2, R2=16.4	USNO-B1
15.2	288.0742	22.4412	B2=20.1, I=18.2	USNO-B1
15.8	288.0749	22.4483	B1=20.6, B2=19.9, I=18.2, R2=18.6	USNO-B1
17.7	288.0723	22.4462	B1=19.9, B2=18.6, I=17.0, R1=17.7, R2=17.5	USNO-B1
22.3	288.0708	22.4425	B1=20.1, B2=19.3, I=18.0, R1=18.5, R2=18.1	USNO-B1
24.2	288.0778	22.4511	B1=16.8, B2=16.1, I=15.2, R1=15.7, R2=15.2	USNO-B1
25.4	288.0809	22.4382	B1=18.5, B2=17.5, I=15.4, R1=16.0, R2=15.7	USNO-B1

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

There are 562 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
5.1	288.0787	22.4442	h=16.3, j=16.8, k=15.9	2MASS
8.8	288.0752	22.4460	h=15.8, j=16.7, k=15.4	2MASS
10.1	288.0761	22.4418	h=15.1, j=15.5, k=14.7	2MASS
13.8	288.0803	22.4418	h=15.1, j=15.2, k=14.8	2MASS
15.3	288.0734	22.4420	h=15.3, j=15.6, k=15.0	2MASS
16.1	288.0762	22.4400	h=15.8, j=16.3, k=15.3	2MASS
16.3	288.0763	22.4399	B2=19.6, I=17.9, R2=18.0	USNO-B1
16.6	288.0749	22.4485	h=16.4, j=16.8, k=17.0	2MASS
17.3	288.0723	22.4461	h=15.4, j=15.7, k=15.4	2MASS
22.2	288.0709	22.4424	h=16.8, j=16.8, k=17.1	2MASS

Queried USNO-B1, SDSS, 2MASS.

There are 551 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.