Swift Trigger: 677495

Presumed name: GRB 160303A

BAT	11^h 14^m 43.44^s, +22° 44′ 32.6″
position:	(168.681, 22.7424 ± 180″)
XRT	11^h 14^m 48.12^s, +22° 44′ 32.6″
position:	(168.7005, 22.7424 ± 2.2″)
UVOT	No position available.
Galactic N_HI:	1.03×10⁰ cm^-2
Galactic E(B-V):	0.016 mag

Best RA:	11^h 14^m 48.12^s	= 168.7005 d
Best Dec:	+22° 44′ 32.6″	= 22.7424 d

Gal Lat:	67.7
Gal Long:	218.93

Sun angle:	163.35°, 11.73 hr West

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 12 SPER messages, and 1 objects have been found

- Object 1 - enhanced position.
- RA (J2000) : 11 14 48.15 (22.7425)
- Dec (J2000): +22 44 32.8 ( 22.74122)
- Error (90%): 2.1
- Counts in Source: 129

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
0.0′′	168.70050	22.74240	GCN #19126	GRB 160303A: Swift detection of a burst� possibly short
0.0′′	168.70050	22.74239	GCN #19131	GRB 160303A: RATIR Optical and NIR Afterglow Detection
0.9′′	168.70025	22.74228	GCN #19136	GRB 160303A: Optical observations from the NOT
1.3′′	168.70075	22.74214	GCN #19132	GRB 160303A: Enhanced Swift-XRT position
10.4′′	168.70118	22.74521	GCN #19140	GRB 160303A: McDonald 2.1m CQUEAN Detection
120.8′′	168.71000	22.71000	GCN #19148	GRB 160303A� Swift-BAT refined analysis

There are 11 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
112.8	168.7078	22.7730	SDSS J111449.87+224622.8	g=18.475, i=17.235, r=17.639, u=19.98, z=16.918

* 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
5.6	168.7012	22.7438	B=21.9, R=19.9	APM-N
8.9	168.7011	22.7448	B2=20.7, R1=19.8	USNO-B1
10.4	168.7012	22.7453	Mag=21.3	NED
12.6	168.7022	22.7393	R=22.6, g=23.1, i=21.9, u=24.2, z=21.5	SDSS
12.8	168.7022	22.7392	R=22.2, g=23.2, i=22.0, u=24.2, z=21.6	SDSS
13.6	168.6966	22.7413	R=25.8, g=22.9, i=24.3, u=26.0, z=22.4	SDSS
20.7	168.6984	22.7478	R=20.9, g=20.4, i=22.0, u=20.3, z=25.6	SDSS
27.4	168.7066	22.7373	R=22.9, g=22.9, i=21.9, u=23.3, z=21.9	SDSS
28.1	168.6979	22.7500	Mag=21.3	NED
28.2	168.6980	22.7499	R=22.4, g=23.3, i=21.8, u=23.7, z=21.1	SDSS

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

There are 308 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
10.4	168.7012	22.7452	I=18.7, R=20.0, g=21.2, u=23.9, z=18.0	SDSS
10.5	168.7012	22.7452	h=16.1, j=16.7, k=15.8	2MASS
10.5	168.7012	22.7452	B2=21.1, I=17.9, R1=19.6, R2=19.4	USNO-B1
18.8	168.7051	22.7454	I=22.3, R=23.2, g=24.1, u=23.2, z=22.2	SDSS
21.6	168.7046	22.7470	I=23.4, R=23.7, g=23.3, u=23.5, z=22.5	SDSS
27.7	168.7083	22.7395	I=24.8, R=24.1, g=24.9, u=22.4, z=23.3	SDSS
28.3	168.6923	22.7445	I=20.9, R=21.6, g=23.6, u=24.0, z=20.6	SDSS
35.0	168.7017	22.7521	I=21.3, R=22.4, g=23.9, u=24.4, z=20.6	SDSS
37.9	168.6978	22.7526	I=22.4, R=23.9, g=25.4, u=24.4, z=23.6	SDSS
41.5	168.6911	22.7348	B1=20.8, B2=21.1, R2=20.0	USNO-B1

Queried USNO-B1, SDSS, 2MASS.

There are 132 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.