Swift Trigger: 666931;

Presumed name: GRB 151210A

BAT	04^h 20^m 43.68^s, -71° 13′ 48.0″
position:	(65.182, -71.230 ± 180″)
XRT	04^h 20^m 28.25^s, -71° 15′ 03.2″
position:	(65.1177, -71.2509 ± 2.1″)
UVOT	No position available.
Galactic N_HI:	9.22×10⁰ cm^-2
Galactic E(B-V):	0.115 mag

Best RA:	04^h 20^m 28.25^s	= 65.1177 d
Best Dec:	-71° 15′ 03.2″	= -71.2509 d

Gal Lat:	-37.36
Gal Long:	284.28

Sun angle:	85.59°, -11.2 hr East of Sun

¹Sper #5 auto processing.

Galaxies within 3.33 of XRT position

	RA*	Dec*		Catalogue
6.1	65.1224	-71.2516	B2=20.6, R2=19.3	USNO-B1
14.3	65.1298	-71.2501	B=20.4, R2=19.3	SSS
19.2	65.1049	-71.2543	B2=20.7, R1=19.4, R2=19.4	USNO-B1
27.4	65.1167	-71.2585	B=22.1	SSS
29.6	65.1371	-71.2563	B2=16.8, I=16.1, R1=15.8, R2=16.1	USNO-B1
29.9	65.1374	-71.2563	B=18.4, R2=16.5, i=16.2	SSS
30.1	65.1379	-71.2561	Mag=17.3	NED
32.0	65.0950	-71.2561	Mag=19.3	NED
36.9	65.1010	-71.2596	B2=20.8, R1=20.0, R2=20.1	USNO-B1
53.6	65.1536	-71.2415	B2=20.7, R2=19.7	USNO-B1
54.1	65.1540	-71.2415	B=20.9	SSS
54.4	65.0898	-71.2631	B2=19.8, I=18.6, R1=19.0, R2=18.8	USNO-B1
55.3	65.0898	-71.2634	B=19.8, R2=18.4, i=18.1	SSS
56.1	65.0899	-71.2637	B2=20.5, R2=19.8	USNO-B1
57.1	65.0989	-71.2656	R1=19.9, R2=19.9	USNO-B1
59.9	65.1037	-71.2669	Mag=19.3	NED
60.4	65.0729	-71.2597	Mag=18.1	NED
60.4	65.1031	-71.2670	B2=19.2, R1=20.4, R2=20.2	USNO-B1
61.1	65.0725	-71.2597	B2=19.5, I=17.2, R1=17.6, R2=17.8	USNO-B1
61.1	65.0725	-71.2597	B=19.7, R2=17.2, i=16.8	SSS
63.5	65.1539	-71.2376	B=21.9, R2=19.5	SSS
64.4	65.0814	-71.2374	B2=20.1, R1=19.1, R2=19.0	USNO-B1
66.8	65.1608	-71.2633	R1=19.0, R2=19.3	USNO-B1
67.4	65.1612	-71.2633	B=19.5, R2=17.8, i=18.1	SSS
67.8	65.1615	-71.2634	B2=19.1, I=18.3, R1=18.5, R2=18.7	USNO-B1
70.5	65.0937	-71.2329	B2=17.5, I=16.1, R1=16.5, R2=16.7	USNO-B1
71.7	65.0772	-71.2660	B2=20.6, R1=20.3	USNO-B1
71.9	65.0774	-71.2661	B=21.1	SSS
72.8	65.1677	-71.2632	B2=19.0, I=17.2, R1=17.8, R2=18.1	USNO-B1
73.3	65.0605	-71.2596	B=20.3, R2=18.1, i=17.5	SSS
76.3	65.1766	-71.2414	B2=18.1, R2=18.7	USNO-B1
76.4	65.1759	-71.2409	B=20.1, R2=17.3, i=17.2	SSS
77.1	65.1770	-71.2411	B2=18.4, R1=17.6, R2=17.8	USNO-B1
77.6	65.0533	-71.2569	B2=19.7, R1=19.2, R2=19.2	USNO-B1
78.2	65.1505	-71.2319	B2=15.1, I=13.9, R1=14.4, R2=14.6	USNO-B1
78.4	65.1508	-71.2319	Mag=18.1	NED
78.8	65.0606	-71.2628	B=21.0, R2=19.0	SSS
86.5	65.1149	-71.2269	B=20.6, R2=18.6, i=18.0	SSS
86.6	65.1148	-71.2269	B2=19.9, I=18.6, R1=19.2, R2=19.7	USNO-B1
88.6	65.1548	-71.2294	B2=19.2, I=18.0, R1=18.2, R2=18.0	USNO-B1
95.6	65.0350	-71.2506	Mag=18.9	NED
96.4	65.0344	-71.2506	B2=19.9, I=18.4, R1=19.1, R2=18.9	USNO-B1
96.7	65.1479	-71.2758	Mag=18.9	NED
96.8	65.1413	-71.2251	B=22.2	SSS
96.9	65.0922	-71.2253	B2=19.4, I=18.9, R1=19.7, R2=19.8	USNO-B1
97.3	65.2013	-71.2537	I=17.7, R2=19.9	USNO-B1
98.2	65.1479	-71.2764	B2=16.2, I=14.7, R1=15.4, R2=15.4	USNO-B1
101.0	65.1889	-71.2347	B2=19.6, I=18.4, R1=19.0, R2=19.1	USNO-B1
101.5	65.1499	-71.2771	B2=18.2, R2=16.9	USNO-B1
102.3	65.1565	-71.2764	B=21.5	SSS
102.8	65.1506	-71.2774	I=17.3, R1=18.2	USNO-B1
103.7	65.0387	-71.2373	I=18.8, R1=19.6, R2=19.9	USNO-B1
104.3	65.1828	-71.2710	B2=20.0, I=18.8, R1=19.2, R2=19.2	USNO-B1
104.3	65.1422	-71.2788	B2=20.8, I=18.6, R1=19.7	USNO-B1
104.4	65.0862	-71.2237	B=21.9	SSS
105.9	65.1294	-71.2217	B2=19.2, I=18.2, R1=18.8, R2=18.7	USNO-B1
106.2	65.0483	-71.2316	B2=20.3, I=18.7	USNO-B1
106.2	65.1543	-71.2239	B2=21.0, I=18.0, R1=19.3, R2=19.4	USNO-B1
107.3	65.1651	-71.2253	B2=18.4, I=16.9, R1=17.2, R2=17.2	USNO-B1
110.6	65.0933	-71.2211	Mag=18.9	NED
113.6	65.0209	-71.2458	I=18.0, R2=19.3	USNO-B1
116.2	65.1630	-71.2221	B2=19.9, I=18.9, R1=19.8, R2=19.4	USNO-B1
116.3	65.1389	-71.2825	B2=19.8, I=18.6, R1=19.1, R2=19.0	USNO-B1
119.8	65.2026	-71.2700	B=22.1	SSS
120.5	65.0492	-71.2257	B2=21.4, R1=20.7, R2=19.9	USNO-B1
121.9	65.0837	-71.2189	B2=21.0, R2=20.2	USNO-B1
122.4	65.1911	-71.2754	B=22.3	SSS
123.3	65.2219	-71.2437	B=20.2, R2=17.5, i=16.9	SSS
123.5	65.0255	-71.2682	B2=19.4, I=18.1, R1=19.0, R2=18.7	USNO-B1
124.2	65.1123	-71.2854	B=22.1	SSS
124.9	65.2250	-71.2474	B2=19.5, I=17.6, R1=18.1, R2=17.9	USNO-B1
125.7	65.0104	-71.2456	Mag=18.9	NED
126.7	65.2192	-71.2642	B=22.4	SSS
127.2	65.1007	-71.2858	B2=20.8, R2=19.6	USNO-B1
128.5	65.0993	-71.2157	B2=21.2, R2=20.0	USNO-B1
130.6	65.1701	-71.2188	B=21.6	SSS
131.7	65.1438	-71.2865	R1=20.3, R2=20.2	USNO-B1
132.3	65.2296	-71.2583	Mag=18.8	NED
132.8	65.2271	-71.2398	B=21.3	SSS
132.8	65.1890	-71.2220	B=19.9, R2=18.4, i=18.4	SSS
134.1	65.1633	-71.2167	B2=20.5, R2=20.1	USNO-B1
135.4	65.0021	-71.2450	I=17.6, R1=19.0	USNO-B1
135.5	65.1330	-71.2136	B2=18.1, I=15.0, R1=16.4, R2=16.6	USNO-B1
136.2	65.1663	-71.2854	B=22.0	SSS
137.4	65.0214	-71.2732	B2=20.7, R2=20.1	USNO-B1
138.8	65.1533	-71.2142	Mag=19.3	NED
140.2	65.0123	-71.2702	B=21.9	SSS
140.8	64.9971	-71.2458	B2=20.3, R2=18.7	USNO-B1
142.6	65.0101	-71.2316	B2=20.8, R2=20.5	USNO-B1
145.1	65.0111	-71.2721	B=21.9	SSS
146.1	65.2189	-71.2752	B=22.5	SSS
148.9	65.2457	-71.2552	B2=19.5, I=18.7, R1=19.3, R2=19.3	USNO-B1
149.3	65.1778	-71.2876	B=22.2	SSS
151.4	65.2458	-71.2423	B2=20.7, R1=20.6, R2=20.3	USNO-B1
151.8	64.9977	-71.2679	B=21.5, R2=19.1	SSS
152.5	65.1406	-71.2926	B2=20.1, R1=19.2, R2=19.5	USNO-B1
153.2	65.1108	-71.2083	Mag=19.3	NED
153.8	65.1234	-71.2936	B2=20.4, R2=20.0	USNO-B1
155.3	65.1116	-71.2078	B2=20.6, R1=20.0	USNO-B1
158.3	65.2398	-71.2311	B2=19.7, I=18.3, R1=18.8, R2=18.8	USNO-B1
158.4	65.1759	-71.2907	B=21.9	SSS
159.3	65.2251	-71.2786	B=22.2	SSS
159.8	65.2475	-71.2358	Mag=19.3	NED
159.9	65.2478	-71.2360	B2=14.8, I=13.6, R1=14.1, R2=14.2	USNO-B1
161.2	65.2562	-71.2556	Mag=18.8	NED
163.4	65.2587	-71.2508	Mag=18.9	NED
163.6	65.1905	-71.2899	B2=21.3, R2=20.2	USNO-B1
164.2	65.0905	-71.2957	B2=19.3, I=18.0, R1=18.2, R2=18.4	USNO-B1
164.3	65.1779	-71.2923	B2=18.7, I=18.2, R1=18.1, R2=18.4	USNO-B1
166.0	65.0346	-71.2886	Mag=19.1	NED
166.8	65.0344	-71.2887	B2=18.2, R1=19.2, R2=18.6	USNO-B1
167.9	65.1506	-71.2055	B=20.8	SSS
168.7	65.1142	-71.2041	I=18.6, R2=20.1	USNO-B1
169.0	65.1057	-71.2041	B2=13.6, I=12.4, R1=12.9, R2=12.7	USNO-B1
169.3	65.1058	-71.2042	Mag=19.1	NED
172.9	65.2521	-71.2720	B2=18.5, I=16.8, R1=17.3, R2=17.2	USNO-B1
173.1	65.0362	-71.2106	B2=21.2, R2=20.4	USNO-B1
173.5	65.2523	-71.2722	B2=19.8, I=18.1, R1=18.8	USNO-B1
173.9	65.0887	-71.2035	B2=19.4, I=18.2, R1=18.7, R2=18.8	USNO-B1
174.3	65.0238	-71.2888	I=18.8, R2=19.9	USNO-B1
176.2	65.0826	-71.2033	B2=20.8, R2=19.5	USNO-B1
176.8	64.9754	-71.2328	Mag=19.2	NED
177.1	65.2069	-71.2109	B=21.7	SSS
177.3	65.2067	-71.2108	B2=21.2, R1=20.7	USNO-B1
177.5	65.2093	-71.2905	B=21.3	SSS
177.8	64.9960	-71.2208	B2=21.3, R2=19.0	USNO-B1
178.3	64.9962	-71.2206	Mag=18.8	NED
183.6	65.0261	-71.2093	R1=20.7, R2=20.0	USNO-B1
183.8	65.1560	-71.3005	B=21.8	SSS
183.9	64.9594	-71.2465	R1=19.6, R2=20.4	USNO-B1
185.1	65.1765	-71.2031	B2=18.5, I=17.1, R1=17.2, R2=17.4	USNO-B1
185.3	64.9600	-71.2600	B2=19.5, R1=20.2, R2=19.8	USNO-B1
185.7	64.9830	-71.2789	B=22.3	SSS
185.7	65.1962	-71.2059	I=18.9, R1=19.8, R2=19.6	USNO-B1
186.1	65.0881	-71.2001	B2=19.6, I=18.5, R1=19.1, R2=18.9	USNO-B1
186.8	65.2698	-71.2335	B2=20.0, I=18.3, R2=18.9	USNO-B1
186.9	65.2700	-71.2337	B=20.2, R2=18.2	SSS
187.1	65.2704	-71.2339	Mag=18.8	NED
187.4	65.1971	-71.2056	Mag=19.6	NED
189.0	65.2744	-71.2361	I=18.3, R1=20.4, R2=19.7	USNO-B1
190.1	65.1573	-71.1997	B=22.2	SSS
190.6	65.2219	-71.2099	B2=20.1, I=17.9, R1=18.9, R2=19.0	USNO-B1
190.7	65.2761	-71.2364	B2=20.4, I=18.4, R2=18.8	USNO-B1
191.4	64.9538	-71.2582	B2=21.4, I=18.3, R1=19.6, R2=19.4	USNO-B1
192.3	65.2777	-71.2365	B=20.4, R2=19.1	SSS
192.7	65.2386	-71.2878	B2=20.0, I=18.3, R1=19.2, R2=18.7	USNO-B1
192.7	65.0164	-71.2934	B2=21.2, R2=19.3	USNO-B1
193.1	65.0935	-71.3040	B2=20.1, R1=19.3, R2=19.4	USNO-B1
193.4	65.0274	-71.2057	B=22.1, R2=19.1, i=18.2	SSS
193.9	65.2484	-71.2172	B=21.7	SSS
194.4	65.1998	-71.2038	B=21.6	SSS
195.5	65.0257	-71.2965	B2=20.7, R2=18.9	USNO-B1
196.5	65.2109	-71.2965	B=19.5, R2=17.9, i=17.7	SSS
197.8	65.2650	-71.2786	Mag=19.6	NED

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