Swift Trigger: 434178;

Presumed name: GRB 100915A

BAT	21^h 02^m 35.52^s, +65° 40′ 01.2″
position:	(315.648, +65.667 ± 180″)
XRT	21^h 02^m 46.51^s, +65° 40′ 22.8″
position:	(315.6938, 65.6730 ± 2.1″)
UVOT	No position available.
Galactic N_HI:	0.00×10⁰ cm^-2
Galactic E(B-V):	0.512 mag

Best RA:	21^h 02^m 46.51^s	= 315.6938 d
Best Dec:	+65° 40′ 22.8″	= 65.6730 d

Gal Lat:
Gal Long:

Sun angle:	not found

Galaxies within 3.33 of XRT position

	RA*	Dec*		Catalogue
0.9	315.6942	65.6731		NED
28.5	315.6965	65.6652	B1=19.4, I=18.2	USNO-B1
30.6	315.6738	65.6751	B2=21.1, I=18.6, R2=19.0	USNO-B1
32.8	315.6781	65.6666	B1=19.5, I=18.4, R2=19.0	USNO-B1
36.8	315.6733	65.6673	B2=20.5, I=18.0, R1=18.7, R2=19.1	USNO-B1
38.6	315.6693	65.6767	B=19.9, R=18.6	APM-N
38.9	315.6958	65.6838	B2=20.7, I=18.2, R1=18.9, R2=18.7	USNO-B1
42.5	315.7199	65.6779	B1=19.4, B2=19.0	USNO-B1
61.9	315.7213	65.6859	B1=20.4, B2=20.4, I=18.3, R1=19.1, R2=19.2	USNO-B1
64.2	315.6710	65.6578	B=21.1, R=19.8	APM-N
65.8	315.6771	65.6899	B2=20.1, I=16.7	USNO-B1
73.9	315.6440	65.6740	B=21.1, R=19.6	APM-N
77.8	315.6597	65.6566	B=21.1, R=19.9	APM-N
77.9	315.6547	65.6586	I=17.1, R2=15.5	USNO-B1
79.6	315.7458	65.6784	B=18.9, R=17.8	APM-N
80.8	315.6503	65.6595	I=18.2, R2=18.2	USNO-B1
87.1	315.7251	65.6935	B2=21.2, I=18.2, R2=18.9	USNO-B1
87.6	315.7050	65.6491	B2=21.0, R2=19.6	USNO-B1
89.5	315.6426	65.6598	B=21.1, R=18.9	APM-N
89.8	315.6423	65.6599	B2=20.5, I=17.3, R1=18.2, R2=18.4	USNO-B1
96.6	315.7335	65.6943	B1=18.3, B2=18.9, I=16.9, R1=17.1, R2=17.5	USNO-B1
99.6	315.7269	65.6489	B1=20.3, I=18.3	USNO-B1
99.8	315.6716	65.6992	B2=20.4, I=18.3, R1=19.1, R2=19.4	USNO-B1
102.1	315.6335	65.6867	B2=20.6, I=18.3, R2=18.4	USNO-B1
102.5	315.6777	65.6453	B2=21.1, R2=19.5	USNO-B1
102.7	315.6280	65.6642	B=19.9, R=17.5	APM-N
103.0	315.6280	65.6638	B2=19.8, I=15.7, R2=17.8	USNO-B1
103.4	315.7392	65.6948	B2=19.0, R2=19.0	USNO-B1
106.9	315.7348	65.6974	I=18.3, R2=19.4	USNO-B1
107.3	315.6249	65.6821	B=21.0, R=20.0	APM-N
107.9	315.7352	65.6976	B1=20.2, R2=19.0	USNO-B1
108.8	315.6533	65.6478	B1=19.9, B2=20.6, I=18.1, R1=19.0, R2=19.0	USNO-B1
112.4	315.6226	65.6837	B2=20.6, R2=18.7	USNO-B1
113.4	315.6921	65.7045	B2=21.1, I=18.5, R2=19.0	USNO-B1
114.3	315.7473	65.6959	B2=20.1, R2=19.0	USNO-B1
114.5	315.7704	65.6770	B1=17.6, B2=18.4, I=16.0, R1=16.4, R2=17.1	USNO-B1
114.7	315.7291	65.6447	B1=17.6, B2=18.1, I=15.5, R1=16.1, R2=16.9	USNO-B1
117.9	315.6321	65.6524	B=19.9, R=18.8	APM-N
118.0	315.6168	65.6812	R1=19.1, R2=19.0	USNO-B1
121.1	315.6204	65.6878	B1=18.1, B2=18.5, I=15.7, R2=14.7	USNO-B1
122.4	315.6186	65.6871	B2=20.6, I=16.9, R1=17.9, R2=18.3	USNO-B1
124.3	315.7728	65.6615	B2=20.9, I=18.2, R1=19.3, R2=19.3	USNO-B1
124.5	315.6178	65.6584	B=21.1, R=19.5	APM-N
124.7	315.6182	65.6579	B2=21.1, I=18.5, R2=19.0	USNO-B1
128.2	315.7803	65.6729	B1=17.2, B2=17.4, I=15.1, R1=15.5, R2=16.3	USNO-B1
132.7	315.6056	65.6667	B1=15.6, B2=16.1, I=13.6, R1=13.8, R2=15.0	USNO-B1
133.0	315.7653	65.6507	B2=19.8, I=18.3	USNO-B1
133.1	315.7132	65.7091	B1=19.1, I=18.7, R2=18.9	USNO-B1
133.3	315.6053	65.6666	B=15.5, R=14.0	APM-N
135.4	315.6769	65.6360	B=21.1, R=19.5	APM-N
136.3	315.7831	65.6641	B1=19.2, B2=20.4, I=18.2, R1=18.6, R2=18.8	USNO-B1
137.5	315.6671	65.6364	B2=19.9, R2=19.0	USNO-B1
139.2	315.7485	65.7044	B1=20.2, B2=19.4	USNO-B1
141.8	315.6141	65.6513	B1=16.2, B2=16.7, I=13.2, R1=13.8, R2=14.9	USNO-B1
142.6	315.5977	65.6740	B2=20.8, R2=19.0	USNO-B1
144.2	315.6327	65.7042	B1=18.9, B2=19.2, I=16.6, R1=17.6, R2=17.6	USNO-B1
146.5	315.6410	65.6386	B=20.1, R=18.3	APM-N
146.8	315.6407	65.6386	B2=19.6, I=17.1, R1=18.0, R2=18.1	USNO-B1
147.3	315.6186	65.6997	B2=20.9, R2=18.8	USNO-B1
150.8	315.5932	65.6793	B2=20.5, R2=18.9	USNO-B1
152.0	315.5923	65.6791	B=21.1, R=19.8	APM-N
152.1	315.6010	65.6910	B=20.9, R=20.0	APM-N
152.4	315.7452	65.6363	B2=20.5, I=18.5, R2=19.3	USNO-B1
153.0	315.6114	65.6986	B2=20.2, R2=19.0	USNO-B1
153.8	315.7460	65.6361	B2=20.5, I=17.8, R2=19.0	USNO-B1
155.3	315.7960	65.6636	B=20.1, R=19.2	APM-N
155.6	315.7961	65.6635	B1=19.6, B2=20.4, I=18.4, R1=18.9, R2=18.7	USNO-B1
164.2	315.6157	65.7054	B2=19.9, I=18.7, R2=19.6	USNO-B1
165.2	315.7083	65.6275	B1=19.5, B2=21.0	USNO-B1
165.9	315.7089	65.6273	B=20.9, R=19.6	APM-N
166.1	315.5894	65.6563	B=20.5, R=18.2	APM-N
168.5	315.6047	65.7021	I=18.2, R2=18.7	USNO-B1
169.8	315.6039	65.7022	B2=20.6, I=18.4, R2=18.9	USNO-B1
171.0	315.5801	65.6809	B2=20.4, I=18.1	USNO-B1
171.2	315.6511	65.7172	B=20.9, R=19.5	APM-N
172.5	315.7696	65.7094	B2=21.0, I=18.3, R2=19.3	USNO-B1
172.8	315.7406	65.6291	I=18.3, R1=19.3	USNO-B1
175.1	315.8095	65.6632	B1=18.9, B2=19.5, I=17.2, R1=17.8, R2=18.0	USNO-B1
177.8	315.7825	65.7063	B1=19.4, B2=20.1, I=18.0, R1=18.5, R2=18.7	USNO-B1
178.4	315.7818	65.7068	B1=19.1, B2=19.5, I=17.5, R1=17.3, R2=17.8	USNO-B1
178.5	315.6930	65.7226	B1=17.8, B2=18.4, I=16.0, R1=16.7, R2=17.4	USNO-B1
178.7	315.7820	65.7068	B=19.3, R=17.8	APM-N
180.2	315.6207	65.6330	B2=20.9, I=17.7, R1=18.9, R2=19.0	USNO-B1
180.8	315.7063	65.7230	B2=19.3, R1=19.2	USNO-B1
181.1	315.7669	65.7133	B1=20.3, B2=20.7, I=18.2, R1=19.1, R2=19.4	USNO-B1
181.4	315.5725	65.6666	B1=17.9, I=15.4	USNO-B1
183.0	315.8155	65.6647	B=21.1, R=19.5	APM-N
185.2	315.7784	65.7109	B=18.9, R=17.7	APM-N
185.6	315.6492	65.6248	I=18.3, R2=18.9	USNO-B1
186.9	315.7001	65.6211	B1=19.4, B2=20.3, I=17.6, R1=18.7, R2=18.8	USNO-B1
190.9	315.8106	65.6508	B2=21.0, I=17.4	USNO-B1
193.0	315.7824	65.6337	B1=19.5, I=17.6	USNO-B1
194.6	315.8008	65.7043	B=19.3, R=17.5	APM-N
194.8	315.5815	65.7011	B1=19.1, B2=19.3, I=17.0, R1=17.7, R2=17.9	USNO-B1
195.3	315.6074	65.7140	B1=17.5, B2=17.5, I=15.3, R1=16.0, R2=16.6	USNO-B1
197.0	315.6458	65.6220	B=19.3, R=18.3	APM-N
197.5	315.7219	65.6194	B1=15.5, B2=16.9, I=13.8, R1=13.9, R2=15.0	USNO-B1
198.2	315.7812	65.7147	B2=20.0, R2=19.1	USNO-B1
198.9	315.7380	65.6208	B2=19.9, R2=19.4	USNO-B1
199.7	315.7407	65.6210	R1=19.0, R2=18.9	USNO-B1
200.0	315.8211	65.6914	I=14.8, R2=19.4	USNO-B1

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