Swift Trigger: 557828;

Presumed name: GRB 130609B

BAT	03^h 35^m 00.96^s, -40° 09′ 10.8″
position:	(53.754, -40.153 ± 180″)
XRT	03^h 35^m 04.72^s, -40° 10′ 33.9″
position:	(53.76966, -40.17608 ± 3.6″)
UVOT	03^h 35^m 05.11^s, -40° 10′ 26.8″
position:	(53.7713, -40.1741 ± 0.7″)
Galactic N_HI:	1.45×10²⁰ cm^-2
Galactic E(B-V):	NED unavailable

Best RA:	03^h 35^m 05.11^s	= 53.7713 d
Best Dec:	-40° 10′ 26.8″	= -40.1741 d

Gal Lat:	-53.91
Gal Long:	244.78

Sun angle:	67.07°, 1.6 hr West

¹Sper #4 auto processing.

Galaxies within 3.33 of XRT position

	RA*	Dec*	Redshift		Catalogue
31.5	53.7736	-40.1679		B=21.7	SSS
40.9	53.7839	-40.1793		B2=21.4, R2=19.7	USNO-B1
53.2	53.7871	-40.1697		B=22.0, R2=20.1	SSS
68.8	53.7633	-40.1576		B=22.3	SSS
74.2	53.7921	-40.1875		B=21.6	SSS
77.1	53.7467	-40.1639		B=21.9	SSS
87.8	53.7454	-40.1919		B=21.7	SSS
95.4	53.7462	-40.1956		B2=18.4, I=18.4, R1=18.8, R2=18.6	USNO-B1
96.8	53.7655	-40.2028		B=22.7, i=19.2	SSS
100.1	53.8058	-40.1650		Mag=19.10	NED
100.7	53.7331	-40.1746		B=20.3, R2=18.5, i=18.1	SSS
103.9	53.8031	-40.1895		B2=20.3, R1=19.6, R2=19.9	USNO-B1
107.1	53.8058	-40.1649		B=19.1, R2=17.9, i=17.7	SSS
107.4	53.7353	-40.1619		I=18.4, R1=19.2	USNO-B1
109.4	53.8084	-40.1831		B=21.6	SSS
118.2	53.8111	-40.1847		B=21.7, R2=20.4	SSS
125.0	53.7462	-40.2058		B=20.4, R2=19.3	SSS
125.1	53.7459	-40.2057		B2=19.4, R1=19.7, R2=19.8	USNO-B1
129.0	53.7621	-40.2114		B=21.6, R2=20.3	SSS
129.3	53.7330	-40.1536		B2=21.0, I=18.7, R1=19.7	USNO-B1
130.7	53.7360	-40.2017		B=18.2, R2=16.9, i=16.6	SSS
130.9	53.7360	-40.2018		h=14.7, j=15.4, k=14.1	2MASS
132.7	53.7570	-40.1405		I=18.6, R2=20.2	USNO-B1
134.2	53.7458	-40.2061		Mag=20.25	NED
138.8	53.7358	-40.2017	0.147865	Mag=18.20	NED
138.9	53.7670	-40.1376		B=22.1	SSS
146.2	53.7661	-40.2166		B=21.0, i=19.4	SSS
146.9	53.8192	-40.1917		Mag=18.7	NED
147.6	53.8193	-40.1918		B=20.1, R2=19.0, i=18.3	SSS
148.3	53.7574	-40.2162		B=21.0, R2=20.5	SSS
149.4	53.7534	-40.1365		I=18.7, R1=19.7, R2=20.2	USNO-B1
150.8	53.8146	-40.1997		Mag=19.4	NED
151.2	53.7370	-40.2099		B2=16.0, I=15.1, R1=15.6, R2=15.6	USNO-B1
153.7	53.7552	-40.1348		B2=21.2, R1=19.6	USNO-B1
154.2	53.7319	-40.2077		B2=18.0, I=16.2, R1=17.1, R2=16.9	USNO-B1
155.3	53.7304	-40.1444		Mag=19.5	NED
158.5	53.7775	-40.1325		B=21.2, R2=20.3	SSS
161.4	53.8123	-40.2069		B=20.4	SSS
163.0	53.7192	-40.1523		B=21.9	SSS
164.6	53.7371	-40.1377		B=22.0	SSS
167.9	53.8125	-40.2093		B=21.3	SSS
170.1	53.7079	-40.1733		B=22.3	SSS
171.8	53.7176	-40.1498		B=22.3	SSS
174.2	53.7064	-40.1734		B=22.4	SSS
175.0	53.7688	-40.1256		Mag=20.50	NED
176.6	53.8055	-40.2168		B=22.1	SSS
178.7	53.7653	-40.2256		B=22.3	SSS
180.6	53.7040	-40.1773		B=22.5	SSS
182.2	53.7689	-40.1255		B=20.6, R2=19.5, i=19.4	SSS
186.8	53.8375	-40.1736		B=22.7	SSS
187.3	53.8279	-40.1453		Mag=19.93	NED
188.3	53.7471	-40.1267		B2=19.4, I=18.3, R1=19.0, R2=19.1	USNO-B1
188.5	53.8396	-40.1744		Mag=19.20	NED
189.2	53.7548	-40.2274		B=21.2, R2=20.6	SSS
189.3	53.7548	-40.2274		B2=20.3, R2=20.1	USNO-B1
190.3	53.7031	-40.1616		B=21.5, R2=19.8	SSS
191.5	53.7346	-40.2220		B=22.3, R2=20.3	SSS
191.9	53.7553	-40.2283		B2=21.4, R2=20.2	USNO-B1
193.7	53.7026	-40.1925		B=20.0, R2=18.3, i=17.9	SSS
193.8	53.8401	-40.1743		B=19.2, R2=18.3, i=18.0	SSS
193.9	53.8401	-40.1742		B2=17.2, I=18.2, R1=18.7, R2=18.2	USNO-B1
195.6	53.8283	-40.1453		B=19.9, R2=18.8	SSS
199.1	53.6979	-40.1833		B=20.4, R2=18.7, i=18.1	SSS
200.0	53.7531	-40.2302		B=22.5	SSS

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

* 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