Swift Trigger: 516997;

Presumed name: GRB 120305A

BAT	03^h 10^m 11.04^s, +28° 29′ 34.8″
position:	(47.546, +28.493 ± 180″)
XRT	03^h 10^m 08.83^s, +28° 29′ 29.4″
position:	(47.5368, 28.4915 ± 2.6″)
UVOT	No position available.
Galactic N_HI:	1.13×10²¹ cm^-2
Galactic E(B-V):	0.433 mag

Best RA:	03^h 10^m 08.83^s	= 47.5368 d
Best Dec:	+28° 29′ 29.4″	= 28.4915 d

Gal Lat:	-25.2
Gal Long:	156.48

Sun angle:	67.83°, -4.1 hr East of Sun

¹Sper #2 auto processing.

Stars within 3.33 of XRT position

	RA*	Dec*		Catalogue
9.8	47.5341	28.4902	h=14.4, j=15.2, k=14.0	2MASS
9.8	47.5340	28.4903	B1=20.4, B2=20.0, I=16.4, R1=17.1, R2=17.5	USNO-B1
38.1	47.5363	28.5021	h=15.9, j=17.1, k=16.1	2MASS
38.8	47.5363	28.5023	B1=20.9, I=19.0, R2=20.2	USNO-B1
40.4	47.5270	28.4986	h=15.2, j=15.8, k=14.7	2MASS
40.8	47.5270	28.4988	B2=21.5, I=17.4, R1=19.3, R2=19.4	USNO-B1
51.0	47.5307	28.4784	B1=20.5, B2=20.8, I=18.9, R1=20.0, R2=19.5	USNO-B1
52.2	47.5364	28.4770	B1=20.7, B2=20.2, I=17.1, R1=17.7, R2=17.8	USNO-B1
52.7	47.5365	28.4769	h=15.0, j=15.7, k=14.7	2MASS
58.3	47.5529	28.4836	B1=20.9, R2=20.1	USNO-B1
64.0	47.5260	28.5065	B1=20.9, I=18.7, R2=19.6	USNO-B1
64.7	47.5346	28.5094	h=15.3, j=15.8, k=15.2	2MASS
64.9	47.5346	28.5094	B1=19.6, B2=18.7, I=16.9, R1=17.6, R2=17.9	USNO-B1
71.5	47.5568	28.5007	I=18.4, R1=19.3, R2=18.2	USNO-B1
71.7	47.5570	28.5006	h=15.6, j=16.8, k=15.4	2MASS
82.8	47.5629	28.4897	B1=20.9, I=18.5	USNO-B1
88.3	47.5631	28.4997	B1=20.9, B2=21.6, I=19.3, R2=20.6	USNO-B1
95.6	47.5086	28.4819	h=13.7, j=14.1, k=13.6	2MASS
95.8	47.5634	28.4789	B1=19.9, B2=18.7, I=16.7, R1=17.1, R2=17.4	USNO-B1
96.0	47.5635	28.4788	h=14.9, j=15.6, k=14.9	2MASS
99.9	47.5248	28.5172	h=16.0, j=16.9, k=15.8	2MASS
100.0	47.5247	28.5172	I=18.6, R2=20.1	USNO-B1
109.1	47.5192	28.4654	h=16.2, j=16.7, k=15.8	2MASS
109.4	47.5302	28.5213	h=15.7, j=16.1, k=15.6	2MASS
110.0	47.5301	28.5215	B1=20.1, B2=19.1, I=17.2, R1=17.9, R2=17.7	USNO-B1
118.9	47.5149	28.5184	h=15.4, j=16.3, k=15.5	2MASS
124.1	47.5085	28.4677	R1=19.7, R2=20.9	USNO-B1
124.6	47.5159	28.5209	h=16.4, j=17.0, k=15.5	2MASS
125.5	47.5157	28.5210	I=18.9, R1=19.9, R2=20.0	USNO-B1
126.8	47.5212	28.5240	h=15.5, j=16.1, k=15.3	2MASS
135.3	47.5600	28.4600	B1=19.5, B2=18.8, I=16.5, R1=17.4, R2=17.2	USNO-B1
135.4	47.5601	28.4599	h=14.8, j=15.4, k=14.6	2MASS
136.8	47.4940	28.4863	B2=20.7, I=19.2, R2=19.7	USNO-B1
137.9	47.5804	28.4904	h=15.9, j=16.6, k=15.5	2MASS
138.4	47.5805	28.4902	B1=20.6, B2=20.7, I=18.1, R1=18.6, R2=18.9	USNO-B1
138.4	47.5632	28.5222	B1=20.8, R1=20.1	USNO-B1
139.2	47.5701	28.4662	B2=20.1, R1=18.8, R2=18.2	USNO-B1
139.6	47.5702	28.4662	h=15.6, j=16.7, k=15.3	2MASS
142.5	47.5797	28.4793	B1=20.5, B2=20.5, I=17.5, R1=18.6, R2=18.3	USNO-B1
142.7	47.5797	28.4792	h=15.6, j=16.3, k=15.4	2MASS
143.2	47.5196	28.5283	h=15.1, j=15.8, k=14.9	2MASS
143.6	47.5196	28.5284	I=17.9, R1=19.2, R2=19.8	USNO-B1
147.3	47.5192	28.4536	B1=20.2, R1=19.7, R2=18.2	USNO-B1
147.9	47.5057	28.5221	B1=20.8, I=18.9, R2=20.3	USNO-B1
149.6	47.5188	28.4531	B1=18.8, B2=17.9, I=16.2, R1=17.4, R2=16.7	USNO-B1
150.0	47.4955	28.4711	B1=20.0, B2=20.3, I=18.2, R1=18.1, R2=19.0	USNO-B1
150.4	47.5187	28.4529	h=15.5, j=16.1, k=15.4	2MASS
156.3	47.5862	28.4929	R1=19.9, R2=20.5	USNO-B1
156.8	47.5661	28.4564	h=14.6, j=15.2, k=14.3	2MASS
157.2	47.4889	28.5031	B1=20.9, R1=20.0	USNO-B1
159.2	47.5794	28.5150	I=19.4, R1=20.0, R2=20.4	USNO-B1
161.6	47.5050	28.5267	h=15.2, j=15.9, k=14.9	2MASS
161.9	47.5050	28.5267	B2=21.5, I=17.7, R1=19.6, R2=19.6	USNO-B1
163.5	47.5733	28.4594	h=15.8, j=16.5, k=15.9	2MASS
163.5	47.5733	28.4594	B1=20.2, B2=19.8, I=17.7, R1=18.3, R2=18.1	USNO-B1
164.9	47.4948	28.4644	B1=15.8, B2=15.4, I=13.7, R1=14.2, R2=14.2	USNO-B1
165.0	47.4948	28.4643	h=12.2, j=12.6, k=12.1	2MASS
166.8	47.4899	28.4704	h=14.9, j=15.8, k=14.8	2MASS
171.7	47.5552	28.5364	h=13.4, j=14.1, k=13.2	2MASS
171.8	47.5551	28.5364	B1=19.8, B2=18.2, I=15.3, R1=16.6, R2=16.4	USNO-B1
172.8	47.5693	28.5300	h=16.6, j=17.1, k=15.9	2MASS
173.0	47.5693	28.5301	B1=20.5, B2=20.1, I=18.3, R1=18.9, R2=19.0	USNO-B1
174.8	47.5906	28.4805	B1=19.9, B2=18.8, I=15.5, R1=16.8, R2=17.1	USNO-B1
175.2	47.5907	28.4804	h=13.3, j=13.9, k=13.1	2MASS
177.4	47.5347	28.5407	h=15.3, j=15.8, k=15.5	2MASS
177.9	47.5379	28.4421	B1=20.5, B2=20.3, I=17.4, R1=18.1, R2=18.5	USNO-B1
178.0	47.5346	28.5409	B1=19.6, B2=18.3, I=16.6, R1=17.3, R2=17.2	USNO-B1
178.3	47.5090	28.4484	B1=20.9, B2=21.1, I=17.4, R1=18.5, R2=18.8	USNO-B1
178.4	47.5379	28.4420	h=15.4, j=16.0, k=15.3	2MASS
178.8	47.5089	28.4483	h=15.2, j=15.9, k=15.0	2MASS
186.1	47.4964	28.5291	B1=20.9, B2=20.8, I=18.3, R1=19.3, R2=19.4	USNO-B1
189.0	47.4798	28.4758	h=16.0, j=16.5, k=15.5	2MASS
189.1	47.5934	28.4746	B2=20.8, I=18.8, R2=19.5	USNO-B1
189.3	47.4797	28.4758	B1=20.1, B2=18.9, I=17.9, R1=18.2, R2=18.1	USNO-B1
190.6	47.5196	28.5422	h=16.2, j=16.8, k=15.7	2MASS
190.6	47.5180	28.5418	h=16.3, j=16.6, k=15.8	2MASS
190.7	47.5179	28.5418	B1=20.5, B2=19.3, I=17.6, R1=18.7, R2=18.4	USNO-B1
191.2	47.5194	28.5424	I=18.2, R2=20.1	USNO-B1
193.3	47.5710	28.4470	B1=18.8, B2=17.8, I=16.4, R1=16.8, R2=16.9	USNO-B1
193.5	47.5839	28.4573	h=15.5, j=16.3, k=15.1	2MASS
193.7	47.5840	28.4573	I=18.1, R1=19.8, R2=20.1	USNO-B1
193.7	47.5710	28.4469	h=15.0, j=15.5, k=14.8	2MASS
193.8	47.4809	28.5134	B1=18.5, R1=20.2	USNO-B1
194.3	47.5979	28.4974	B2=21.0, I=18.9, R1=19.7, R2=19.9	USNO-B1
195.4	47.5842	28.4567	B1=20.8, I=18.4, R2=19.8	USNO-B1
197.4	47.5691	28.5384	B1=17.5, B2=16.5, I=15.0, R1=15.6, R2=15.6	USNO-B1
197.4	47.5692	28.5384	h=13.7, j=14.2, k=13.6	2MASS
198.6	47.5890	28.4609	B1=20.7, B2=20.5, I=18.9, R1=19.4, R2=19.3	USNO-B1
198.9	47.4768	28.4751	B1=20.7, B2=20.3, I=16.5, R1=17.5, R2=17.5	USNO-B1
198.9	47.4768	28.4750	h=13.7, j=14.5, k=13.4	2MASS

Queried USNO-B1, SDSS, 2MASS.

* 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.