Swift Trigger: 338338;

Presumed name: GRB 081228

BAT	02^h 37^m 52.08^s, +30° 50′ 34.8″
position:	(39.467, +30.843 ± 180″)
XRT	02^h 37^m 50.54^s, +30° 51′ 11.9″
position:	(39.4606, 30.8533 ± 3.8″)
UVOT	No position available.
Galactic N_HI:	0.00×10⁰ cm^-2
Galactic E(B-V):	0.161 mag

Best RA:	02^h 37^m 50.54^s	= 39.4606 d
Best Dec:	+30° 51′ 11.9″	= 30.8533 d

Gal Lat:
Gal Long:

Sun angle:	not found

Stars within 3.33 of XRT position

	RA*	Dec*		Catalogue
21.9	39.4540	30.8555	B1=20.3, B2=20.3, I=18.4, R1=18.7, R2=19.1	USNO-B1
24.5	39.4640	30.8594	h=16.0, j=16.7, k=15.6	2MASS
31.7	39.4605	30.8621	h=12.3, j=12.8, k=12.1	2MASS
31.8	39.4605	30.8621	B1=16.0, B2=15.8, I=13.7, R1=14.1, R2=14.4	USNO-B1
51.8	39.4707	30.8648	h=13.7, j=14.3, k=13.5	2MASS
51.8	39.4706	30.8648	B1=18.0, B2=18.0, I=15.4, R1=16.0, R2=16.2	USNO-B1
57.2	39.4450	30.8618	h=14.0, j=14.2, k=13.8	2MASS
57.4	39.4449	30.8619	B1=15.7, B2=15.7, I=14.6, R1=14.7, R2=15.0	USNO-B1
58.7	39.4791	30.8496	h=16.2, j=16.6, k=15.6	2MASS
61.3	39.4625	30.8363	h=14.1, j=14.7, k=13.8	2MASS
67.2	39.4451	30.8402	h=16.0, j=16.7, k=15.5	2MASS
67.6	39.4450	30.8401	B1=21.2, B2=21.2, I=18.5, R1=19.0, R2=19.2	USNO-B1
68.4	39.4818	30.8587	h=15.0, j=15.6, k=14.8	2MASS
71.9	39.4458	30.8379	h=15.5, j=16.2, k=15.3	2MASS
72.0	39.4457	30.8379	B1=19.7, B2=19.6, I=17.5, R1=17.6, R2=18.0	USNO-B1
72.1	39.4814	30.8623	I=19.1, R2=20.4	USNO-B1
72.9	39.4394	30.8444	B1=18.9, B2=18.9, I=18.7, R1=18.4, R2=18.8	USNO-B1
72.9	39.4395	30.8443	h=16.9, j=16.9, k=15.9	2MASS
74.3	39.4529	30.8729	h=15.3, j=16.3, k=14.8	2MASS
74.4	39.4529	30.8729	B1=18.9, B2=18.6, I=16.4, R1=17.4, R2=16.2	USNO-B1
77.4	39.4514	30.8333	B2=21.4, R1=19.4, R2=19.7	USNO-B1
78.7	39.4860	30.8550	B2=21.4, R2=19.6	USNO-B1
80.0	39.4831	30.8643	B1=17.2, B2=17.4, I=15.6, R1=16.0, R2=16.2	USNO-B1
80.1	39.4832	30.8642	h=14.3, j=14.8, k=14.2	2MASS
84.1	39.4636	30.8765	h=15.4, j=15.9, k=15.0	2MASS
84.7	39.4637	30.8767	B2=21.1, I=17.6, R1=18.9, R2=18.9	USNO-B1
85.9	39.4588	30.8771	I=19.1, R1=19.9	USNO-B1
90.3	39.4668	30.8778	h=14.6, j=15.5, k=14.4	2MASS
90.7	39.4668	30.8779	B1=16.2, B2=14.9, I=13.7, R1=14.1, R2=13.5	USNO-B1
97.1	39.4324	30.8652	h=16.3, j=16.9, k=16.1	2MASS
100.5	39.4704	30.8267	B2=21.1, I=19.0, R1=19.6, R2=20.0	USNO-B1
111.4	39.4946	30.8636	B1=18.2, B2=18.6, I=17.9, R1=18.4, R2=18.1	USNO-B1
114.1	39.4974	30.8554	B1=17.6, B2=17.5, I=15.9, R1=16.2, R2=16.6	USNO-B1
114.2	39.4975	30.8554	h=14.9, j=15.3, k=14.7	2MASS
114.8	39.4797	30.8259	h=16.1, j=16.7, k=15.9	2MASS
118.9	39.4489	30.8218	B1=20.6, B2=21.2, I=18.6, R1=19.9, R2=19.8	USNO-B1
119.0	39.4489	30.8218	h=16.1, j=16.7, k=15.7	2MASS
120.2	39.4542	30.8862	h=10.9, j=11.5, k=10.8	2MASS
120.3	39.4542	30.8863	B1=14.8, B2=14.6, I=12.4, R1=12.9, R2=13.1	USNO-B1
120.3	39.4217	30.8536	h=14.5, j=14.8, k=14.4	2MASS
126.3	39.4434	30.8214	B1=20.3, B2=21.4	USNO-B1
127.3	39.4198	30.8484	h=14.5, j=15.2, k=14.4	2MASS
127.4	39.4198	30.8485	B1=19.0, B2=19.3, I=16.4, R1=16.9, R2=17.1	USNO-B1
127.9	39.5009	30.8453	B1=19.1, B2=19.7, I=18.7, R1=19.2, R2=18.6	USNO-B1
130.2	39.4186	30.8562	h=15.2, j=15.4, k=14.9	2MASS
130.2	39.4186	30.8563	B1=17.1, B2=17.0, I=16.1, R1=16.1, R2=16.2	USNO-B1
133.6	39.5038	30.8537	B2=21.4, R2=19.8	USNO-B1
139.3	39.4645	30.8147	I=19.2, R2=20.2	USNO-B1
142.4	39.4146	30.8506	h=15.2, j=15.8, k=14.9	2MASS
142.5	39.4146	30.8506	B1=19.9, B2=19.7, I=16.8, R1=17.8, R2=17.6	USNO-B1
142.8	39.4932	30.8252	h=15.1, j=15.4, k=15.0	2MASS
142.9	39.4930	30.8250	B1=17.2, B2=16.9, I=15.5, R1=16.0, R2=15.8	USNO-B1
143.3	39.4605	30.8135	h=16.3, j=16.9, k=16.0	2MASS
144.2	39.4927	30.8242	B1=18.3, B2=17.4, I=16.9, R1=16.9, R2=16.8	USNO-B1
144.8	39.4925	30.8239	h=16.0, j=16.6, k=15.9	2MASS
145.0	39.4388	30.8890	h=15.9, j=16.2, k=15.7	2MASS
145.4	39.4387	30.8891	B1=18.2, B2=18.3, I=17.2, R1=17.6, R2=17.5	USNO-B1
149.7	39.4122	30.8532	I=18.8, R1=19.7, R2=19.8	USNO-B1
149.7	39.4147	30.8399	B2=21.4, R2=19.8	USNO-B1
151.8	39.5097	30.8540	R1=20.0, R2=20.3	USNO-B1
152.5	39.4919	30.8861	B2=21.0, R1=18.9	USNO-B1
152.8	39.4918	30.8862	h=15.7, j=16.8, k=15.3	2MASS
153.2	39.4919	30.8863	B2=20.3, I=18.0, R1=19.1, R2=18.5	USNO-B1
157.4	39.4678	30.8100	B2=21.4, I=19.1, R2=20.2	USNO-B1
159.8	39.4543	30.8974	B1=17.8, B2=17.9, I=17.0, R1=17.2, R2=17.2	USNO-B1
160.2	39.4543	30.8975	h=16.4, j=16.4, k=16.1	2MASS
160.2	39.4345	30.8149	h=16.3, j=16.9, k=15.7	2MASS
161.4	39.5052	30.8300	h=16.4, j=17.0, k=15.9	2MASS
163.0	39.4231	30.8851	B2=21.4, I=18.6, R2=20.3	USNO-B1
166.2	39.4645	30.8072	B1=19.5, B2=19.9, I=18.2, R1=18.5, R2=18.4	USNO-B1
166.2	39.4647	30.8073	h=16.0, j=16.7, k=15.6	2MASS
167.2	39.4512	30.8076	B2=21.4, I=18.9, R1=19.4, R2=19.7	USNO-B1
167.4	39.5142	30.8602	B1=15.4, B2=15.1, I=13.6, R1=13.8, R2=14.2	USNO-B1
167.6	39.5143	30.8602	h=12.6, j=13.0, k=12.6	2MASS
170.4	39.4706	30.8067	B1=20.9, B2=21.1, I=18.7, R1=19.4, R2=19.5	USNO-B1
174.4	39.4446	30.8069	h=16.2, j=16.9, k=16.5	2MASS
175.7	39.4438	30.8067	B2=21.4, I=18.7, R1=19.5, R2=19.6	USNO-B1
179.2	39.4115	30.8268	h=15.8, j=16.3, k=15.5	2MASS
179.3	39.4115	30.8268	B2=21.0, I=18.3, R1=19.2, R2=19.3	USNO-B1
182.8	39.4769	30.9021	I=18.8, R1=19.9, R2=20.1	USNO-B1
184.9	39.4070	30.8305	B1=16.7, B2=16.2, I=12.8, R1=14.1, R2=14.5	USNO-B1
185.0	39.4898	30.8084	B1=18.1, B2=18.1, I=15.9, R1=16.3, R2=16.6	USNO-B1
185.0	39.4704	30.8026	h=16.5, j=16.5, k=15.4	2MASS
185.1	39.4070	30.8305	h=11.2, j=11.8, k=11.0	2MASS
185.2	39.4899	30.8084	h=14.4, j=15.0, k=14.2	2MASS
185.4	39.4701	30.8025	B1=18.2, B2=18.4, I=17.8, R1=17.5, R2=17.9	USNO-B1
186.9	39.4562	30.8015	B1=19.9, B2=20.0, I=18.4, R1=19.0, R2=19.0	USNO-B1
187.6	39.3999	30.8557	h=15.1, j=15.6, k=14.8	2MASS
187.8	39.3999	30.8557	B1=18.1, B2=18.0, I=16.3, R1=16.7, R2=16.6	USNO-B1
191.6	39.4041	30.8751	h=15.9, j=16.2, k=16.0	2MASS
192.3	39.4038	30.8751	B1=18.9, B2=18.9, I=17.3, R1=17.6, R2=17.6	USNO-B1
197.7	39.4179	30.8124	B2=21.3, I=19.2, R1=19.8, R2=20.0	USNO-B1

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.