Swift Trigger: 374875;

Presumed name: GRB 091104

BAT	13^h 54^m 58.08^s, +47° 23′ 52.8″
position:	(208.742, +47.398 ± 180″)
XRT	13^h 55^m 01.61^s, +47° 24′ 37.8″
position:	(208.7567, 47.4105 ± 2.6″)
UVOT	No position available.
Galactic N_HI:	0.00×10⁰ cm^-2
Galactic E(B-V):	0.015 mag

Best RA:	13^h 55^m 01.61^s	= 208.7567 d
Best Dec:	+47° 24′ 37.8″	= 47.4105 d

Gal Lat:
Gal Long:

Sun angle:	not found

Stars within 3.33 of XRT position

	RA*	Dec*		Catalogue
15.3	208.7598	47.4142	h=15.8, j=16.3, k=15.8	2MASS
15.5	208.7598	47.4143	I=17.7, R=18.2, g=19.2, u=21.4, z=17.5	SDSS
15.7	208.7598	47.4143	B1=20.2, B2=19.1, I=17.1, R1=17.9, R2=17.8	USNO-B1
44.4	208.7386	47.4094	B1=20.7, B2=21.4, R2=20.1	USNO-B1
51.7	208.7443	47.4221	B1=20.8, B2=21.5, R2=20.8	USNO-B1
52.1	208.7367	47.4054	I=22.2, R=23.1, g=25.4, u=25.1, z=22.4	SDSS
52.5	208.7439	47.4223	B2=21.4, R1=19.6, R2=20.8	USNO-B1
53.1	208.7366	47.4047	I=23.6, R=23.3, g=23.3, u=23.6, z=22.4	SDSS
67.6	208.7393	47.3959	I=20.0, R=21.2, g=22.5, u=24.3, z=19.5	SDSS
74.9	208.7728	47.4282	R1=19.5, R2=20.1	USNO-B1
78.5	208.7345	47.4263	I=24.9, R=24.8, g=24.5, u=25.7, z=20.4	SDSS
79.8	208.7240	47.4108	B2=20.5, I=16.8, R1=18.5, R2=18.8	USNO-B1
79.9	208.7239	47.4107	h=15.2, j=15.8, k=14.9	2MASS
79.9	208.7239	47.4107	I=17.7, R=18.7, g=20.1, u=22.6, z=17.1	SDSS
80.0	208.7586	47.4327	h=11.7, j=12.0, k=11.7	2MASS
80.1	208.7585	47.4327	I=13.1, R=13.2, g=15.5, u=15.5, z=13.5	SDSS
80.3	208.7586	47.4328	B1=14.5, B2=14.3, I=11.9, R1=13.3, R2=12.9	USNO-B1
81.0	208.7446	47.3896	I=21.9, R=23.0, g=22.9, u=24.0, z=22.0	SDSS
85.3	208.7734	47.4313	B1=20.8, R2=20.1	USNO-B1
85.9	208.7605	47.3868	B2=22.0, R2=20.1	USNO-B1
86.0	208.7643	47.4338	B1=20.8, B2=20.6, I=18.9, R2=19.8	USNO-B1
86.3	208.7618	47.3868	I=21.3, R=21.5, g=22.0, u=22.9, z=21.7	SDSS
86.3	208.7421	47.4324	I=24.0, R=25.9, g=25.5, u=23.3, z=21.0	SDSS
89.3	208.7896	47.3995	I=21.9, R=23.2, g=23.9, u=25.6, z=21.4	SDSS
90.2	208.7529	47.3856	I=22.4, R=23.3, g=23.0, u=23.0, z=21.8	SDSS
90.7	208.7282	47.4267	I=21.8, R=21.9, g=22.4, u=23.3, z=22.1	SDSS
90.8	208.7391	47.4327	B2=21.8, R2=19.9	USNO-B1
91.6	208.7387	47.4329	B2=21.2, R1=19.8, R2=20.9	USNO-B1
92.6	208.7921	47.4199	I=20.0, R=21.4, g=23.0, u=23.8, z=19.3	SDSS
93.9	208.7302	47.3916	I=21.0, R=22.3, g=23.3, u=24.9, z=20.1	SDSS
95.3	208.7269	47.4276	B2=21.6, R1=19.7	USNO-B1
97.6	208.7339	47.4328	B1=20.7, B2=21.9	USNO-B1
99.4	208.7189	47.4210	I=20.7, R=21.8, g=23.2, u=24.2, z=20.2	SDSS
102.4	208.7421	47.4372	B2=21.4, I=18.4, R1=19.7, R2=19.9	USNO-B1
103.0	208.7144	47.4110	B2=21.3, R2=20.1	USNO-B1
104.1	208.7365	47.4360	I=21.6, R=22.6, g=24.6, u=23.4, z=21.1	SDSS
104.6	208.7419	47.4378	h=16.2, j=16.9, k=16.1	2MASS
104.7	208.7482	47.3820	I=18.4, R=19.9, g=21.3, u=23.6, z=17.7	SDSS
104.8	208.7483	47.3819	h=15.8, j=16.4, k=15.5	2MASS
104.9	208.7710	47.3830	B2=21.5, R2=21.0	USNO-B1
105.2	208.7418	47.4379	I=19.0, R=20.3, g=21.8, u=23.6, z=18.3	SDSS
105.2	208.7418	47.4379	B2=21.3, I=19.2	USNO-B1
106.3	208.7481	47.4394	I=22.3, R=23.1, g=23.8, u=24.9, z=22.1	SDSS
106.8	208.7878	47.3896	B1=20.8, B2=21.1, I=18.8, R2=19.8	USNO-B1
106.8	208.7240	47.4303	I=22.3, R=22.8, g=23.9, u=24.4, z=22.1	SDSS
107.6	208.8007	47.4129	I=19.4, R1=19.6	USNO-B1
108.7	208.7747	47.4381	I=17.5, R=18.4, g=19.8, u=22.3, z=16.9	SDSS
108.7	208.7747	47.4381	h=14.9, j=15.6, k=15.0	2MASS
108.7	208.7746	47.4382	B1=20.4, B2=19.9, I=16.5, R1=18.4, R2=18.3	USNO-B1
111.0	208.7115	47.4144	B1=16.1, B2=15.8, I=14.1, R1=15.2, R2=14.9	USNO-B1
111.0	208.7115	47.4143	h=13.7, j=14.1, k=13.7	2MASS
111.1	208.7115	47.4143	I=14.9, R=15.1, g=15.4, u=16.5, z=14.9	SDSS
113.3	208.7932	47.3910	I=21.1, R=22.4, g=23.5, u=25.2, z=20.4	SDSS
114.1	208.7100	47.4086	I=22.8, R=23.3, g=23.2, u=24.1, z=22.1	SDSS
115.8	208.7099	47.4049	I=24.2, R=25.4, g=26.2, u=25.8, z=20.8	SDSS
117.2	208.7261	47.4356	h=14.0, j=14.4, k=13.9	2MASS
117.2	208.7261	47.4356	I=15.5, R=15.7, g=16.4, u=18.4, z=15.4	SDSS
117.4	208.7260	47.4357	B1=17.1, B2=16.7, I=14.6, R1=15.5, R2=15.6	USNO-B1
117.5	208.8010	47.4234	B2=21.9, R1=19.7, R2=19.9	USNO-B1
117.6	208.7505	47.4429	I=21.9, R=22.2, g=23.3, u=25.4, z=21.5	SDSS
119.6	208.7357	47.4405	B2=21.3, I=18.5, R1=19.3, R2=19.7	USNO-B1
122.7	208.7490	47.3768	B2=20.9, R2=20.8	USNO-B1
124.2	208.7112	47.3949	B1=20.6, B2=20.6, I=19.4, R2=19.9	USNO-B1
124.3	208.7112	47.3948	I=19.8, R=19.9, g=20.3, u=21.3, z=19.7	SDSS
127.1	208.7526	47.3753	B2=21.7, R2=21.0	USNO-B1
129.0	208.7878	47.4395	I=20.2, R=20.3, g=20.8, u=21.8, z=20.0	SDSS
129.2	208.7782	47.3777	B1=20.8, R1=19.6	USNO-B1
129.3	208.7255	47.4395	I=22.5, R=23.7, g=24.1, u=24.8, z=21.8	SDSS
129.3	208.7879	47.4396	B1=20.6, B2=20.8, R2=20.0	USNO-B1
134.1	208.8057	47.4276	h=16.4, j=17.5, k=15.9	2MASS
134.6	208.8057	47.4277	B2=21.6, I=18.7, R1=19.3, R2=19.4	USNO-B1
137.5	208.8062	47.3921	B2=20.9, R2=20.1	USNO-B1
137.9	208.8032	47.3887	B2=20.8, R1=19.4, R2=19.9	USNO-B1
139.9	208.8071	47.3918	B2=20.1, R2=20.1	USNO-B1
141.1	208.7424	47.3725	B2=21.6, R1=19.9, R2=20.1	USNO-B1
141.9	208.7131	47.3844	I=21.1, R=21.8, g=23.0, u=25.2, z=21.1	SDSS
142.0	208.7285	47.3760	I=20.8, R=22.0, g=23.6, u=24.7, z=20.2	SDSS
143.5	208.7000	47.3997	I=21.4, R=22.7, g=23.7, u=23.3, z=20.6	SDSS
143.7	208.7094	47.3866	I=22.6, R=22.9, g=23.0, u=22.9, z=21.5	SDSS
144.2	208.7344	47.4476	I=23.9, R=22.9, g=23.7, u=24.4, z=22.6	SDSS
144.8	208.6978	47.4051	I=19.6, R=20.7, g=22.1, u=23.5, z=19.1	SDSS
146.4	208.6972	47.4050	I=19.4, R1=19.8, R2=20.1	USNO-B1
147.5	208.8097	47.3907	B1=19.6, B2=17.8, I=17.6, R1=19.0, R2=17.5	USNO-B1
147.6	208.7597	47.4515	I=18.1, R1=19.5, R2=19.4	USNO-B1
148.5	208.7969	47.4415	I=20.7, R=21.8, g=23.4, u=24.7, z=20.2	SDSS
148.9	208.8101	47.3904	B1=19.1, B2=18.1, I=18.2, R1=19.2	USNO-B1
149.3	208.7464	47.4514	I=19.7, R=19.8, g=20.1, u=21.0, z=19.6	SDSS
149.7	208.7464	47.4515	B1=20.6, B2=20.5, R2=20.1	USNO-B1
151.1	208.8109	47.3900	B1=19.5, B2=20.5, I=18.4, R2=20.2	USNO-B1
151.6	208.7670	47.3690	B2=21.7, R2=20.1	USNO-B1
154.1	208.8058	47.3835	B2=21.5, I=18.8, R1=19.3, R2=20.0	USNO-B1
154.3	208.8058	47.3834	I=19.0, R=20.3, g=21.7, u=24.6, z=18.2	SDSS
154.5	208.8058	47.3833	h=16.2, j=16.8, k=15.7	2MASS
155.5	208.8182	47.4222	I=22.1, R=22.4, g=23.1, u=22.8, z=22.4	SDSS
155.8	208.7648	47.4534	I=23.1, R=22.6, g=22.9, u=24.8, z=22.8	SDSS
155.9	208.6946	47.4209	I=21.3, R=22.0, g=23.5, u=24.0, z=21.0	SDSS
156.2	208.7561	47.3671	B1=20.8, B2=21.4, R2=20.1	USNO-B1
156.3	208.8199	47.4031	B2=21.6, R2=20.8	USNO-B1
156.5	208.7259	47.3724	I=22.5, R=23.3, g=23.2, u=25.5, z=22.5	SDSS
158.7	208.7798	47.4517	B2=21.3, R1=19.6	USNO-B1
158.8	208.7597	47.4546	I=24.4, R=21.0, g=25.1, u=17.2, z=14.4	SDSS
159.1	208.7592	47.4547	h=8.8, j=9.3, k=8.7	2MASS
159.2	208.7593	47.4547	I=13.1, R=10.9, g=11.8, u=15.7, z=11.0	SDSS
159.2	208.7586	47.4547	I=24.4, R=19.4, g=25.1, u=19.3, z=14.8	SDSS
159.2	208.7542	47.4547	B2=19.4, I=17.9, R2=17.5	USNO-B1
159.3	208.7531	47.4547	B2=18.8, R2=19.1	USNO-B1
159.5	208.8062	47.3815	I=22.9, R=22.7, g=23.8, u=24.4, z=22.0	SDSS
159.8	208.7638	47.4546	B2=20.2, R1=18.3	USNO-B1
161.3	208.7668	47.4548	B2=20.8, R2=20.1	USNO-B1
161.4	208.7742	47.4538	I=22.2, R=24.8, g=25.9, u=25.2, z=22.7	SDSS
162.3	208.7553	47.4556	I=21.2, R=21.2, g=24.3, u=24.2, z=22.8	SDSS
163.5	208.7622	47.4558	B2=20.1, I=17.5, R2=18.6	USNO-B1
163.5	208.7655	47.4555	I=22.7, R=24.7, g=24.8, u=23.7, z=22.8	SDSS
164.7	208.7743	47.3663	I=20.5, R=21.1, g=22.5, u=24.5, z=20.2	SDSS
165.3	208.7151	47.3742	B2=20.7, R1=19.6, R2=19.9	USNO-B1
166.9	208.7643	47.4566	B2=21.2, R2=19.5	USNO-B1
167.7	208.7526	47.4570	B2=20.7, R2=18.5	USNO-B1
167.8	208.8217	47.4259	I=22.3, R=24.3, g=24.8, u=24.9, z=21.4	SDSS
168.7	208.8255	47.4156	I=22.4, R=22.8, g=23.6, u=23.5, z=22.6	SDSS
168.8	208.6895	47.3991	B2=21.8, R1=19.9, R2=20.0	USNO-B1
171.1	208.7595	47.4580	B2=19.9, I=19.5, R2=17.7	USNO-B1
172.0	208.7121	47.3735	B2=21.0, I=17.4, R1=19.3, R2=19.2	USNO-B1
172.2	208.7121	47.3734	h=15.3, j=15.9, k=15.3	2MASS
172.2	208.7121	47.3734	I=18.0, R=19.4, g=20.8, u=23.0, z=17.3	SDSS
174.1	208.6940	47.3873	I=22.6, R=22.6, g=23.9, u=23.1, z=21.8	SDSS
174.5	208.6851	47.4085	I=19.0, R=19.1, g=19.3, u=20.1, z=19.0	SDSS
174.6	208.6851	47.4085	B1=19.9, B2=19.2, I=18.7, R1=19.2, R2=19.4	USNO-B1
175.1	208.7915	47.3680	I=21.9, R=22.3, g=23.2, u=24.2, z=21.2	SDSS
175.3	208.7116	47.3726	I=19.8, R2=18.8	USNO-B1
176.0	208.7750	47.4578	I=19.9, R=20.7, g=22.2, u=24.8, z=19.6	SDSS
176.7	208.8288	47.4051	B2=21.3, R2=20.1	USNO-B1
176.7	208.8206	47.3872	h=16.1, j=16.9, k=15.5	2MASS
177.9	208.8211	47.3872	B1=20.8, B2=19.5, I=17.3, R1=18.0, R2=17.2	USNO-B1
177.9	208.6860	47.3982	I=21.9, R=22.7, g=24.3, u=23.6, z=21.3	SDSS
178.1	208.7121	47.3713	B1=20.8, B2=20.8, R1=19.3, R2=20.2	USNO-B1
179.9	208.7767	47.4586	B2=21.8, I=19.5, R1=19.2, R2=19.8	USNO-B1
181.8	208.7189	47.4540	I=23.9, R=23.8, g=23.5, u=24.9, z=23.1	SDSS
182.2	208.8293	47.3984	B2=21.5, R1=19.1, R2=20.7	USNO-B1
182.5	208.7021	47.3758	B1=19.8, B2=19.1, I=18.4, R1=19.2, R2=19.0	USNO-B1
182.5	208.7741	47.3612	I=21.0, R=23.7, g=24.4, u=23.9, z=19.6	SDSS
182.6	208.7020	47.3758	I=18.8, R=18.9, g=19.3, u=20.3, z=18.8	SDSS
182.8	208.6826	47.4186	I=21.2, R=21.9, g=24.2, u=25.5, z=21.0	SDSS
182.9	208.7897	47.3649	I=21.2, R=23.4, g=24.2, u=26.1, z=20.2	SDSS
183.0	208.8086	47.3737	I=21.1, R=21.6, g=22.7, u=25.1, z=20.6	SDSS
185.7	208.7579	47.3589	B2=21.6, I=17.7, R1=19.2, R2=19.4	USNO-B1
185.8	208.7579	47.3589	I=18.4, R=19.9, g=21.2, u=23.2, z=17.6	SDSS
186.0	208.7579	47.3588	h=15.3, j=16.2, k=15.4	2MASS
186.6	208.7563	47.3587	B2=21.2, R1=19.7	USNO-B1
187.7	208.7186	47.3652	B2=21.3, I=19.6, R2=19.2	USNO-B1
188.0	208.7088	47.3696	B1=18.9, B2=17.8, I=15.5, R1=16.4, R2=16.5	USNO-B1
188.2	208.7088	47.3695	h=14.2, j=14.9, k=14.1	2MASS
188.2	208.7126	47.4534	h=14.6, j=15.5, k=14.3	2MASS
188.2	208.7088	47.3695	I=16.3, R=16.7, g=17.9, u=20.4, z=16.0	SDSS
188.4	208.7126	47.4535	B1=18.9, B2=16.7, I=14.6, R1=16.1, R2=14.8	USNO-B1
189.4	208.6797	47.4030	I=22.5, R=23.2, g=23.1, u=25.2, z=22.4	SDSS
190.5	208.7109	47.4534	I=21.4, R=21.5, g=23.2, u=23.6, z=20.5	SDSS
191.7	208.7172	47.3645	I=18.3, R=19.5, g=21.0, u=23.7, z=17.6	SDSS
191.7	208.7171	47.3645	h=15.7, j=16.2, k=15.5	2MASS
192.6	208.7174	47.3641	B2=21.5, I=19.6, R1=19.0, R2=17.8	USNO-B1
194.1	208.7821	47.3594	I=23.2, R=22.8, g=23.6, u=24.8, z=23.4	SDSS
194.6	208.8323	47.4279	B2=21.8, R2=20.8	USNO-B1
194.9	208.7732	47.4635	I=21.3, R=21.9, g=23.7, u=23.4, z=20.8	SDSS
195.3	208.7386	47.4634	I=22.4, R=23.0, g=22.9, u=23.5, z=22.6	SDSS
195.6	208.7251	47.4604	R1=19.5, R2=19.9	USNO-B1
195.9	208.7255	47.4607	I=21.3, R=21.4, g=21.9, u=23.6, z=21.4	SDSS
196.1	208.7256	47.4607	B2=21.5, R1=19.6, R2=20.8	USNO-B1
196.2	208.8139	47.3721	B2=20.9, R2=19.9	USNO-B1
196.6	208.8159	47.3734	I=21.8, R=23.0, g=24.1, u=24.5, z=21.8	SDSS
196.8	208.8005	47.3646	I=21.2, R=22.5, g=23.4, u=23.4, z=20.8	SDSS
197.7	208.7759	47.3572	B1=19.9, B2=19.9, I=18.9, R1=19.4, R2=19.9	USNO-B1
197.9	208.7760	47.3571	I=19.6, R=19.6, g=19.9, u=20.0, z=19.5	SDSS
197.9	208.6996	47.3714	B1=19.5, B2=18.3, I=16.2, R1=17.8, R2=17.0	USNO-B1
198.5	208.6995	47.3713	h=15.5, j=16.4, k=15.1	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.