Swift Trigger: 736407

Presumed name: GRB 170202A

BAT	10^h 10^m 06.96^s, +05° 00′ 07.2″
position:	(152.529, 5.002 ± 180″)
XRT	10^h 10^m 03.52^s, +05° 00′ 44.6″
position:	(152.51466, 5.01240 ± 3.5″)
UVOT	10^h 10^m 03.48^s, +05° 00′ 41.8″
position:	(152.5145, +5.0116 ± 0.8″)
Galactic N_HI:	1.85×10⁰ cm^-2
Galactic E(B-V):	0.022 mag

Best RA:	10^h 10^m 03.48^s	= 152.5145 d
Best Dec:	+05° 00′ 41.8″	= +5.0116 d

Gal Lat:	45.69
Gal Long:	235.53

Sun angle:	160.31°, 10.9 hr West

¹Sper #7 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 7 SPER messages, and 1 objects have been found

- Object 1
- RA (J2000) : 10 10 03.52 ( 152.51466)
- Dec (J2000): +05 00 44.6 ( 5.01240)
- Error (90%): 3.530"
- Counts in Source: 505

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
0.2′′	152.51454	5.01161	GCN #20575	GRB 170202A: Swift detection of a burst with an optical afterglow
0.2′′	152.51454	5.01161	GCN #20587	GRB 170202A: Swift/UVOT Detection
0.5′′	152.51450	5.01175	GCN #20576	GRB 170202A : Xinglong TNT optical observation
0.9′′	152.51442	5.01136	GCN #20586	GRB 170202A: Enhanced Swift-XRT position
53.3′′	152.52600	5.02100	GCN #20596	GRB 170202A: Swift-BAT refined analysis
67.0′′	152.51400	4.99300	GCN #20591	GRB 170202A: T100 observations

There are 14 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
37.4	152.5170	5.0225	TYC 251-224-1	B=11.41, H=7.494, J=8.090, K=7.335, V=10.28
192.0	152.5250	5.0647	SDSS J101005.99+050353.0	g=20.551, i=20.499, r=20.512, u=20.964, z=20.246

* 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
9.4	152.5172	5.0131	B=21.9, R=19.9	APM-N
10.1	152.5166	5.0104	B=21.9, R=19.7	APM-N
21.9	152.5174	5.0178	R=20.7, g=21.6, i=24.4, u=24.6, z=20.7	SDSS
22.0	152.5204	5.0103		NED
24.2	152.5174	5.0185	R=24.6, g=23.7, i=16.0, u=19.8, z=20.4	SDSS
30.2	152.5112	5.0039	Mag=22.1	NED
33.1	152.5113	5.0038	R=21.3, g=22.3, i=20.7, u=24.7, z=20.5	SDSS
36.5	152.5142	5.0014	Mag=20.5	NED
37.2	152.5104	5.0218	R=19.1, g=24.4, i=17.6, u=22.4, z=17.1	SDSS
38.6	152.5112	5.0225	B2=20.5, I=18.5, R1=19.8, R2=19.7	USNO-B1

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

There are 398 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
17.1	152.5168	5.0167	B2=18.1, I=18.3, R2=17.9	USNO-B1
20.4	152.5169	5.0176	B2=19.7, I=17.1, R1=18.0, R2=17.6	USNO-B1
23.5	152.5171	5.0184	B1=19.9, B2=19.6, I=17.1, R2=16.9	USNO-B1
30.2	152.5063	5.0119	B1=20.9, B2=20.7	USNO-B1
35.5	152.5146	5.0223	I=19.7, R=23.7, g=21.5, u=22.9, z=19.6	SDSS
36.8	152.5129	5.0225	B1=20.6, B2=19.5, I=17.4, R1=20.2, R2=16.5	USNO-B1
37.3	152.5170	5.0225	I=12.3, R=9.8, g=10.9, u=15.6, z=10.3	SDSS
37.6	152.5170	5.0226	h=7.5, j=8.1, k=7.3	2MASS
37.6	152.5236	5.0178	I=22.4, R=22.4, g=23.6, u=25.4, z=21.2	SDSS
39.2	152.5142	5.0015	B2=20.6, I=18.6, R1=20.4, R2=19.6	USNO-B1

Queried USNO-B1, SDSS, 2MASS.

There are 185 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.