Swift Trigger: 358574;

Presumed name: GRB 090728

BAT	01^h 58^m 38.40^s, +41° 38′ 49.2″
position:	(29.660, +41.647 ± 180″)
XRT	01^h 58^m 36.74^s, +41° 38′ 00.2″
position:	(29.6531, 41.6334 ± 2.0″)
UVOT	No position available.
Galactic N_HI:	0.00×10⁰ cm^-2
Galactic E(B-V):	0.072 mag

Best RA:	01^h 58^m 36.74^s	= 29.6531 d
Best Dec:	+41° 38′ 00.2″	= 41.6334 d

Gal Lat:
Gal Long:

Sun angle:	not found

Stars within 3.33 of XRT position

	RA*	Dec*		Catalogue
18.7	29.6522	41.6282	B2=20.8, I=18.8, R1=19.4, R2=19.2	USNO-B1
20.4	29.6603	41.6352	B1=20.8, B2=20.8	USNO-B1
21.6	29.6457	41.6357	h=14.6, j=14.8, k=14.4	2MASS
21.7	29.6457	41.6358	B1=16.3, B2=14.9, I=15.1, R1=16.0, R2=15.6	USNO-B1
23.8	29.6557	41.6397	h=11.8, j=12.3, k=11.7	2MASS
23.8	29.6541	41.6400	I=18.9, R1=14.2	USNO-B1
23.9	29.6557	41.6398	B1=15.4, B2=14.1, I=12.9, R2=13.7	USNO-B1
27.5	29.6449	41.6379	R1=19.8, R2=19.2	USNO-B1
29.9	29.6457	41.6272	B1=20.9, B2=20.1, I=17.8, R1=19.4, R2=19.0	USNO-B1
29.9	29.6456	41.6272	h=15.8, j=16.1, k=15.2	2MASS
36.6	29.6495	41.6432	I=18.9, R2=19.2	USNO-B1
39.6	29.6563	41.6441	B1=19.9, B2=18.6, I=18.8, R1=19.3, R2=19.1	USNO-B1
49.9	29.6715	41.6353	B1=16.7, B2=15.3, I=15.5, R1=16.2, R2=15.9	USNO-B1
49.9	29.6715	41.6352	h=14.9, j=15.2, k=14.7	2MASS
51.3	29.6532	41.6191	B1=20.7, B2=19.8, I=18.9, R1=19.9, R2=19.6	USNO-B1
53.2	29.6352	41.6396	h=15.4, j=15.9, k=15.5	2MASS
53.3	29.6351	41.6397	B1=17.7, B2=16.0, I=16.1, R1=17.0, R2=16.6	USNO-B1
57.2	29.6691	41.6229	B1=19.2, B2=17.2, I=16.4, R1=17.1, R2=17.1	USNO-B1
57.6	29.6692	41.6229	h=15.0, j=15.6, k=14.8	2MASS
58.3	29.6315	41.6346	B1=19.6, B2=18.1, I=18.5, R1=18.7, R2=18.6	USNO-B1
58.5	29.6702	41.6434	B1=17.4, B2=15.6, I=15.3, R1=16.2, R2=15.9	USNO-B1
58.5	29.6703	41.6434	h=14.4, j=14.8, k=14.4	2MASS
60.2	29.6403	41.6471	B1=20.4, B2=19.1, I=18.6, R2=19.3	USNO-B1
61.5	29.6608	41.6173	h=16.3, j=16.6, k=16.0	2MASS
68.5	29.6296	41.6261	B2=20.4, R1=19.8, R2=19.4	USNO-B1
78.3	29.6243	41.6366	B1=20.6, B2=19.1, I=18.1, R1=18.8, R2=18.4	USNO-B1
79.9	29.6272	41.6442	h=15.4, j=15.9, k=15.4	2MASS
80.0	29.6272	41.6443	B1=18.7, B2=16.7, I=16.4, R1=17.2, R2=17.0	USNO-B1
82.4	29.6294	41.6189	B1=20.2, B2=18.9, I=18.5, R1=19.1, R2=19.2	USNO-B1
89.6	29.6332	41.6534	h=13.2, j=13.5, k=13.1	2MASS
89.7	29.6332	41.6534	B1=15.6, B2=14.2, I=13.8, R1=14.8, R2=14.5	USNO-B1
92.1	29.6266	41.6496	B2=21.2, R2=19.2	USNO-B1
94.2	29.6319	41.6126	B1=21.0, B2=19.2, R1=19.6, R2=19.2	USNO-B1
95.9	29.6258	41.6505	B2=20.4, I=18.1, R1=19.3, R2=19.1	USNO-B1
96.1	29.6256	41.6505	h=16.3, j=16.7, k=15.7	2MASS
96.1	29.6292	41.6136	h=16.6, j=16.5, k=15.9	2MASS
96.3	29.6291	41.6136	B1=18.2, B2=16.6, I=17.2, R1=17.6, R2=17.4	USNO-B1
96.5	29.6580	41.6069	I=18.6, R1=19.8, R2=19.4	USNO-B1
99.7	29.6776	41.6127	B2=21.1, I=18.5, R1=19.5, R2=19.3	USNO-B1
100.2	29.6272	41.6534	h=15.9, j=16.4, k=15.5	2MASS
100.8	29.6270	41.6535	B1=18.2, B2=16.6, I=17.0, R1=17.4, R2=17.3	USNO-B1
102.3	29.6877	41.6217	B1=20.5, B2=18.8, I=18.0, R1=18.3, R2=18.3	USNO-B1
102.6	29.6878	41.6216	h=15.9, j=16.8, k=16.0	2MASS
104.0	29.6561	41.6046	B2=21.4, R2=19.3	USNO-B1
106.2	29.6696	41.6066	B1=19.3, B2=17.5, I=16.7, R1=17.5, R2=17.5	USNO-B1
106.4	29.6693	41.6064	B2=18.8, R1=17.7	USNO-B1
106.6	29.6695	41.6065	h=15.4, j=16.2, k=15.3	2MASS
107.9	29.6266	41.6559	h=15.5, j=16.3, k=15.4	2MASS
107.9	29.6265	41.6559	B1=20.9, B2=18.9, I=17.9, R1=18.3, R2=18.1	USNO-B1
108.1	29.6682	41.6056	B2=20.1, I=18.6, R1=18.9, R2=18.4	USNO-B1
110.0	29.6746	41.6074	h=16.1, j=16.5, k=16.0	2MASS
111.3	29.6360	41.6615	h=16.1, j=16.8, k=16.0	2MASS
111.5	29.6685	41.6046	B1=20.9, B2=21.3, I=18.3, R2=18.4	USNO-B1
111.9	29.6359	41.6617	B2=20.1, I=18.2, R1=19.0, R2=18.8	USNO-B1
112.1	29.6749	41.6069	B1=18.0, B2=16.3, I=16.8, R1=17.5, R2=17.3	USNO-B1
112.4	29.6749	41.6068	h=16.2, j=16.4, k=16.6	2MASS
112.8	29.6811	41.6567	h=16.1, j=16.4, k=15.9	2MASS
113.2	29.6812	41.6568	B1=17.9, B2=16.4, I=16.6, R1=17.2, R2=16.9	USNO-B1
114.8	29.6249	41.6573	h=15.7, j=16.0, k=15.4	2MASS
114.8	29.6249	41.6574	B1=17.5, B2=16.2, I=16.8, R1=17.2, R2=16.9	USNO-B1
115.4	29.6108	41.6389	B1=20.0, B2=18.6, I=18.9, R1=19.6, R2=19.1	USNO-B1
116.4	29.6100	41.6364	B1=20.6, B2=19.2, I=18.6, R1=19.2, R2=19.0	USNO-B1
117.2	29.6914	41.6490	h=12.5, j=13.0, k=12.3	2MASS
117.3	29.6914	41.6490	B1=15.7, B2=14.4, I=13.4, R1=14.5, R2=14.2	USNO-B1
118.4	29.6442	41.6656	B2=21.8, I=18.9, R2=19.4	USNO-B1
118.7	29.6848	41.6563	h=15.5, j=15.8, k=15.3	2MASS
118.7	29.6849	41.6563	B1=17.7, B2=16.0, I=16.3, R1=16.6, R2=16.7	USNO-B1
118.9	29.6859	41.6556	B2=19.3, I=17.9, R1=18.9, R2=18.5	USNO-B1
123.6	29.6141	41.6515	B2=20.1, I=18.0, R1=19.1	USNO-B1
126.8	29.6849	41.6594	h=15.7, j=16.0, k=15.2	2MASS
127.0	29.6849	41.6595	B1=18.7, B2=16.7, I=16.6, R1=17.3, R2=17.1	USNO-B1
127.2	29.6212	41.6595	h=14.5, j=15.1, k=14.3	2MASS
127.4	29.6212	41.6595	B2=19.4, I=16.6, R1=18.4, R2=18.1	USNO-B1
128.4	29.6140	41.6539	B1=13.8, B2=12.6, I=11.2, R1=12.6, R2=12.0	USNO-B1
128.5	29.6140	41.6539	h=10.2, j=10.7, k=10.0	2MASS
129.4	29.6055	41.6386	h=15.5, j=16.2, k=16.0	2MASS
129.7	29.6054	41.6387	B1=18.4, B2=16.6, I=16.4, R1=17.2, R2=17.0	USNO-B1
135.4	29.7024	41.6408	h=16.1, j=16.6, k=15.6	2MASS
135.6	29.7025	41.6409	B2=21.4, I=18.3, R1=19.2, R2=19.4	USNO-B1
138.3	29.6029	41.6250	h=14.8, j=15.1, k=14.6	2MASS
138.5	29.6028	41.6251	B1=17.1, B2=15.6, I=15.3, R1=16.1, R2=15.8	USNO-B1
139.3	29.6014	41.6317	h=15.7, j=16.6, k=16.0	2MASS
139.9	29.6012	41.6316	B1=19.2, B2=17.1, I=17.5, R1=18.1, R2=17.6	USNO-B1
140.1	29.6517	41.5945	B1=21.1, B2=20.4, R2=20.4	USNO-B1
141.2	29.6047	41.6182	h=13.8, j=13.9, k=13.7	2MASS
141.2	29.6047	41.6183	B1=15.1, B2=13.8, I=14.1, R1=15.0, R2=14.6	USNO-B1
141.5	29.6613	41.5946	I=17.6, R2=20.7	USNO-B1
141.6	29.6870	41.6635	B1=20.8, B2=19.6, I=18.2, R1=19.2, R2=19.4	USNO-B1
141.8	29.7054	41.6285	B1=20.9, B2=20.9, R2=19.5	USNO-B1
143.6	29.6630	41.5942	B2=19.1, I=16.9, R1=19.5, R2=17.0	USNO-B1
144.0	29.7059	41.6267	B2=20.4, I=18.1, R1=19.1, R2=18.8	USNO-B1
144.1	29.7059	41.6266	h=16.1, j=16.8, k=15.8	2MASS
146.2	29.5993	41.6278	B1=19.3, I=17.9, R2=18.6	USNO-B1
146.8	29.6612	41.6737	B2=21.1, I=18.5, R1=20.0, R2=19.4	USNO-B1
146.9	29.6056	41.6133	h=15.5, j=16.2, k=15.6	2MASS
147.1	29.6054	41.6134	B1=19.0, B2=17.1, I=16.9, R1=17.4, R2=17.4	USNO-B1
148.1	29.7067	41.6427	h=14.6, j=15.0, k=14.5	2MASS
148.2	29.7067	41.6428	B1=17.3, B2=15.7, I=15.2, R1=16.0, R2=15.9	USNO-B1
148.7	29.6543	41.5921	B1=20.8, B2=19.5, I=18.8, R2=19.3	USNO-B1
148.8	29.6309	41.5955	B1=21.0, B2=19.7, I=18.5, R1=19.3, R2=19.3	USNO-B1
148.9	29.6760	41.6711	B2=21.2, I=18.4, R1=19.3, R2=18.9	USNO-B1
149.4	29.7085	41.6366	h=16.1, j=16.9, k=15.8	2MASS
149.8	29.7082	41.6276	h=16.2, j=16.4, k=16.0	2MASS
150.0	29.7087	41.6365	B2=18.3, I=18.0, R1=17.9, R2=17.8	USNO-B1
151.4	29.6770	41.6715	B1=20.9, R2=19.1	USNO-B1
151.7	29.7089	41.6277	B2=20.0, I=16.5, R1=18.0, R2=17.7	USNO-B1
152.5	29.7093	41.6277	B2=19.3, R1=18.2, R2=17.2	USNO-B1
153.8	29.7097	41.6277	B1=17.9, B2=16.1, I=15.9, R1=16.9, R2=16.6	USNO-B1
154.5	29.7100	41.6275	h=15.9, j=16.3, k=15.6	2MASS
154.8	29.6374	41.5921	B2=20.8, I=17.7, R1=19.0, R2=19.3	USNO-B1
155.0	29.6374	41.5920	h=15.7, j=16.1, k=15.0	2MASS
156.3	29.6195	41.6688	B1=21.1, B2=19.7, R2=19.5	USNO-B1
156.4	29.6475	41.6766	h=13.0, j=13.6, k=12.7	2MASS
156.5	29.7112	41.6356	B1=15.4, B2=14.2, I=13.8, R1=14.8, R2=14.5	USNO-B1
156.5	29.6476	41.6767	B1=18.9, B2=16.6, I=14.5, R1=16.5, R2=16.2	USNO-B1
156.5	29.7112	41.6355	h=13.2, j=13.6, k=13.1	2MASS
158.4	29.6112	41.6025	B2=20.2, I=18.7, R1=19.1, R2=19.4	USNO-B1
158.5	29.5951	41.6411	h=14.7, j=14.9, k=14.4	2MASS
158.5	29.5951	41.6412	B1=16.6, B2=15.2, I=15.2, R1=16.0, R2=15.7	USNO-B1
160.4	29.6973	41.6633	h=15.2, j=15.5, k=15.0	2MASS
160.5	29.6972	41.6634	B1=17.1, B2=15.6, I=16.0, R1=16.6, R2=16.3	USNO-B1
161.0	29.6656	41.5897	B2=20.7, I=18.9, R2=19.4	USNO-B1
161.5	29.7113	41.6443	B2=21.1, I=18.7, R1=19.6, R2=20.1	USNO-B1
161.7	29.7113	41.6445	I=18.3, R2=19.4	USNO-B1
162.1	29.6435	41.6779	B1=20.7, B2=19.5, I=19.0, R1=19.0, R2=19.3	USNO-B1
162.6	29.6057	41.6615	B2=21.1, I=18.3, R1=19.4, R2=19.3	USNO-B1
163.3	29.6015	41.6573	h=12.8, j=13.1, k=12.8	2MASS
163.4	29.6015	41.6573	B1=14.9, B2=13.8, I=13.4, R1=14.4, R2=14.0	USNO-B1
169.3	29.5952	41.6519	B2=20.3, I=18.8, R1=19.5, R2=19.4	USNO-B1
171.3	29.6025	41.6045	B1=19.2, B2=17.3, I=18.0, R1=18.7, R2=18.1	USNO-B1
174.2	29.6894	41.5933	B1=20.4, B2=19.1, I=19.0, R2=19.4	USNO-B1
177.0	29.6483	41.5844	B1=17.4, B2=15.7, I=14.9, R1=15.9, R2=15.7	USNO-B1
177.0	29.7098	41.6085	B1=16.1, B2=14.8, I=14.7, R1=15.6, R2=15.4	USNO-B1
177.1	29.6483	41.5843	h=13.7, j=14.4, k=13.6	2MASS
177.2	29.7098	41.6084	h=14.2, j=14.6, k=14.2	2MASS
177.3	29.6370	41.5856	B1=19.9, I=17.3, R1=17.7	USNO-B1
178.0	29.6342	41.5860	B2=20.7, I=18.1, R2=19.3	USNO-B1
178.0	29.6372	41.5854	B1=20.1, B2=17.3, I=17.6, R1=18.2, R2=17.6	USNO-B1
178.3	29.6344	41.5859	h=15.7, j=16.7, k=15.3	2MASS
178.6	29.5889	41.6461	B2=20.0, I=18.8, R1=19.4, R2=19.4	USNO-B1
179.3	29.7163	41.6176	B1=21.0, B2=19.8, I=17.5, R1=18.8, R2=18.8	USNO-B1
179.4	29.7164	41.6177	h=16.1, j=16.4, k=15.5	2MASS
180.0	29.7156	41.6156	B1=16.9, B2=15.7, I=15.6, R1=16.4, R2=16.3	USNO-B1
180.3	29.7157	41.6155	h=15.2, j=15.4, k=15.1	2MASS
180.9	29.6708	41.6819	B1=20.7, B2=18.6, I=18.3, R1=18.9, R2=18.7	USNO-B1
181.0	29.5871	41.6431	B1=20.9, B2=18.9, I=18.3, R2=19.1	USNO-B1
181.9	29.6171	41.6762	h=14.5, j=15.0, k=14.4	2MASS
182.0	29.6171	41.6762	B1=17.0, B2=15.6, I=15.4, R1=16.3, R2=16.0	USNO-B1
182.8	29.6527	41.6842	B2=21.1, R2=20.8	USNO-B1
182.8	29.6940	41.6740	h=15.8, j=16.6, k=15.7	2MASS
182.9	29.6939	41.6741	B1=18.9, B2=16.8, I=16.7, R1=17.5, R2=17.3	USNO-B1
186.2	29.7157	41.6114	B1=20.4, B2=18.3, I=15.6, R1=17.1, R2=17.3	USNO-B1
186.2	29.7157	41.6114	h=14.1, j=14.7, k=13.7	2MASS
188.1	29.5895	41.6118	B1=19.9, B2=17.6, I=15.7, R1=17.3, R2=17.2	USNO-B1
188.1	29.5895	41.6117	h=14.0, j=14.6, k=13.7	2MASS
188.7	29.7231	41.6370	h=12.9, j=13.4, k=12.7	2MASS
189.2	29.7233	41.6369	B1=15.7, B2=15.5, I=13.5, R1=14.8, R2=14.4	USNO-B1
189.4	29.7147	41.6588	B2=20.5, I=17.9, R1=19.4, R2=19.6	USNO-B1
189.5	29.7148	41.6588	h=15.9, j=17.0, k=15.5	2MASS
190.5	29.6797	41.5844	R1=19.1, R2=19.4	USNO-B1
190.7	29.6791	41.5841	R1=19.0, R2=19.0	USNO-B1
191.0	29.6991	41.6738	I=18.9, R2=19.4	USNO-B1
191.6	29.6656	41.5810	B2=20.3, R1=18.0, R2=19.4	USNO-B1
192.7	29.7236	41.6426	h=13.5, j=13.9, k=13.4	2MASS
192.8	29.7237	41.6426	B1=15.7, B2=14.3, I=14.0, R1=14.9, R2=14.7	USNO-B1
193.1	29.5859	41.6523	B2=20.3, I=18.6, R2=19.0	USNO-B1
194.6	29.7253	41.6362	B1=16.9, B2=16.7, I=15.5, R1=15.8	USNO-B1
195.0	29.6836	41.5843	h=10.5, j=10.8, k=10.4	2MASS
195.3	29.7256	41.6360	h=15.1, j=15.4, k=15.1	2MASS
195.9	29.7251	41.6253	B1=19.4, B2=17.7, I=17.7, R1=18.2, R2=18.1	USNO-B1
196.8	29.6079	41.6764	B2=19.9, I=18.7, R1=19.2, R2=19.1	USNO-B1
197.5	29.6763	41.6854	h=13.4, j=13.8, k=13.3	2MASS
197.6	29.6763	41.6855	B1=15.9, B2=14.6, I=14.0, R1=15.3, R2=14.8	USNO-B1
198.4	29.6326	41.6863	h=16.0, j=16.6, k=14.8	2MASS
198.6	29.5796	41.6283	B1=20.8, B2=19.6, I=18.9, R2=19.3	USNO-B1
199.1	29.7168	41.6053	B1=17.2, B2=15.7, I=15.3, R1=16.2, R2=16.1	USNO-B1
199.2	29.7168	41.6052	h=14.6, j=15.0, k=14.5	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.