Swift Trigger: 338895;

Presumed name: GRB 090102

BAT	08^h 33^m 02.16^s, +33° 05′ 31.2″
position:	(128.259, +33.092 ± 180″)
XRT	08^h 32^m 58.54^s, +33° 06′ 52.6″
position:	(128.2439, 33.1146 ± 2.1″)
UVOT	No position available.
Galactic N_HI:	0.00×10⁰ cm^-2
Galactic E(B-V):	0.048 mag

Best RA:	08^h 32^m 58.54^s	= 128.2439 d
Best Dec:	+33° 06′ 52.6″	= 33.1146 d

Gal Lat:
Gal Long:

Sun angle:	not found

Stars within 3.33 of XRT position

	RA*	Dec*		Catalogue
14.3	128.2430	33.1107	I=22.6, R=23.5, g=23.2, u=23.7, z=22.4	SDSS
14.4	128.2396	33.1163	I=21.5, R=21.8, g=22.8, u=24.1, z=21.0	SDSS
19.6	128.2424	33.1093	I=22.2, R=23.2, g=24.1, u=23.4, z=21.0	SDSS
36.2	128.2546	33.1100	B1=19.5, B2=18.6, I=17.6, R1=18.5, R2=18.4	USNO-B1
36.9	128.2538	33.1086	B2=19.2, R1=19.4, R2=19.5	USNO-B1
41.8	128.2301	33.1149	I=21.5, R=22.9, g=24.0, u=26.2, z=20.4	SDSS
46.9	128.2322	33.1231	h=15.5, j=16.2, k=16.0	2MASS
47.1	128.2321	33.1232	I=18.1, R=19.3, g=20.7, u=23.0, z=17.5	SDSS
47.3	128.2320	33.1232	B2=20.8, I=17.8, R1=19.0, R2=19.2	USNO-B1
51.3	128.2416	33.1287	h=15.7, j=16.1, k=15.6	2MASS
51.8	128.2416	33.1288	I=17.0, R=17.2, g=17.7, u=19.0, z=16.9	SDSS
52.0	128.2415	33.1289	B1=17.5, B2=17.6, I=16.6, R1=16.4, R2=16.9	USNO-B1
56.7	128.2575	33.1038	I=17.8, R=18.0, g=18.6, u=20.1, z=17.7	SDSS
56.7	128.2576	33.1038	B1=18.7, B2=18.6, I=17.7, R1=17.2, R2=17.7	USNO-B1
56.9	128.2599	33.1062	I=20.3, R=21.1, g=22.5, u=24.4, z=20.1	SDSS
64.5	128.2625	33.1058	h=11.9, j=12.6, k=11.8	2MASS
64.5	128.2626	33.1058	I=14.8, R=15.0, g=16.4, u=19.0, z=13.8	SDSS
64.6	128.2631	33.1226	I=25.1, R=25.3, g=25.3, u=24.0, z=20.8	SDSS
69.4	128.2482	33.1335	h=15.3, j=15.7, k=15.0	2MASS
69.5	128.2482	33.1336	I=16.9, R=17.3, g=18.2, u=20.5, z=16.7	SDSS
69.8	128.2483	33.1336	B1=18.5, B2=18.1, I=16.3, R1=16.7, R2=16.8	USNO-B1
69.9	128.2279	33.1287	h=15.1, j=15.4, k=15.0	2MASS
70.1	128.2278	33.1287	I=16.3, R=16.6, g=17.2, u=18.7, z=16.3	SDSS
70.2	128.2279	33.1287	B1=17.1, B2=17.1, I=15.9, R1=15.9, R2=16.2	USNO-B1
72.9	128.2442	33.1348	I=19.3, R=19.6, g=20.4, u=21.9, z=19.1	SDSS
73.2	128.2443	33.1349	B1=20.9, B2=20.2, R1=19.6, R2=19.6	USNO-B1
73.4	128.2217	33.1230	I=21.8, R=23.3, g=25.0, u=25.1, z=21.1	SDSS
74.8	128.2191	33.1147	I=21.8, R=22.1, g=22.7, u=23.2, z=21.7	SDSS
78.8	128.2689	33.1211	I=22.5, R=24.1, g=24.3, u=24.9, z=21.6	SDSS
79.7	128.2452	33.0925	I=20.6, R=21.9, g=23.1, u=24.2, z=19.7	SDSS
80.1	128.2207	33.1255	h=15.0, j=15.9, k=15.0	2MASS
80.2	128.2207	33.1255	I=17.4, R=18.2, g=19.6, u=21.9, z=17.0	SDSS
80.2	128.2207	33.1255	B1=20.2, B2=19.6, I=17.3, R1=17.6, R2=17.7	USNO-B1
84.3	128.2182	33.1238	I=22.8, R=23.7, g=23.4, u=23.5, z=23.1	SDSS
84.9	128.2600	33.1339	I=22.1, R=22.7, g=23.5, u=23.1, z=22.1	SDSS
87.3	128.2396	33.1386	I=22.7, R=23.9, g=24.4, u=24.7, z=21.9	SDSS
88.6	128.2714	33.1060	I=21.6, R=22.5, g=23.9, u=23.5, z=20.8	SDSS
89.7	128.2185	33.1016	I=22.7, R=24.9, g=24.9, u=24.4, z=22.0	SDSS
90.1	128.2219	33.1315	I=20.2, R=20.3, g=20.6, u=21.5, z=20.4	SDSS
90.2	128.2447	33.0896	I=20.6, R=21.4, g=22.8, u=24.2, z=19.7	SDSS
90.3	128.2219	33.1316	B1=20.6, B2=20.7, R1=19.6, R2=20.0	USNO-B1
92.4	128.2743	33.1114	I=21.9, R=22.6, g=24.1, u=24.2, z=21.6	SDSS
92.7	128.2655	33.1329	I=21.0, R=22.0, g=23.5, u=24.1, z=20.4	SDSS
97.3	128.2630	33.1364	B1=23.2, R1=20.0	USNO-B1
97.5	128.2760	33.1116	I=22.3, R=23.0, g=23.7, u=24.0, z=21.8	SDSS
99.3	128.2759	33.1212	I=19.8, R=21.5, g=22.8, u=24.3, z=18.8	SDSS
101.3	128.2713	33.1308	I=22.0, R=22.9, g=24.2, u=24.3, z=22.2	SDSS
102.9	128.2514	33.1425	I=20.6, R=21.7, g=22.8, u=23.5, z=20.2	SDSS
104.6	128.2776	33.1077	B1=19.5, B2=19.2, I=18.3, R1=18.2, R2=18.6	USNO-B1
104.7	128.2776	33.1076	I=18.4, R=18.6, g=19.2, u=20.6, z=18.2	SDSS
105.5	128.2245	33.0902	I=24.1, R=23.2, g=25.0, u=24.1, z=22.7	SDSS
106.6	128.2580	33.1418	I=19.9, R=21.1, g=22.5, u=23.8, z=19.2	SDSS
109.5	128.2414	33.1450	I=18.5, R=18.8, g=19.8, u=22.1, z=18.3	SDSS
114.5	128.2420	33.0828	I=22.4, R=23.3, g=24.1, u=23.9, z=21.6	SDSS
115.1	128.2745	33.1337	I=18.7, R=20.0, g=21.5, u=23.5, z=18.0	SDSS
116.1	128.2764	33.1319	I=24.2, R=24.8, g=25.3, u=23.8, z=21.2	SDSS
116.5	128.2743	33.1345	I=21.8, R=23.5, g=24.6, u=25.5, z=22.3	SDSS
117.0	128.2752	33.1338	h=15.8, j=16.5, k=15.7	2MASS
118.4	128.2764	33.0962	I=22.5, R=23.2, g=24.6, u=25.2, z=22.5	SDSS
118.4	128.2680	33.1406	I=23.2, R=24.8, g=25.2, u=22.6, z=23.8	SDSS
122.9	128.2767	33.1348	I=23.8, R=25.4, g=25.5, u=22.8, z=22.9	SDSS
123.7	128.2294	33.1468	I=20.9, R=22.8, g=24.0, u=23.9, z=19.7	SDSS
123.9	128.2294	33.1468	I=20.9, R=22.7, g=24.1, u=24.0, z=19.7	SDSS
123.9	128.2262	33.1457	I=16.3, R=16.8, g=18.0, u=20.7, z=16.0	SDSS
123.9	128.2262	33.1457	I=16.3, R=16.8, g=18.0, u=20.6, z=16.0	SDSS
124.0	128.2262	33.1457	h=14.2, j=14.9, k=14.3	2MASS
124.1	128.2262	33.1457	B1=17.9, B2=18.0, I=15.7, R1=15.8, R2=16.4	USNO-B1
125.3	128.2662	33.1440	I=22.1, R=22.7, g=23.4, u=22.9, z=22.3	SDSS
125.4	128.2111	33.0932	B2=20.7, I=17.9, R1=19.1, R2=19.3	USNO-B1
125.5	128.2111	33.0931	I=18.1, R=19.4, g=20.9, u=23.9, z=17.5	SDSS
125.9	128.2109	33.0931	h=15.7, j=16.2, k=15.7	2MASS
126.4	128.2027	33.1083	B1=20.3, B2=20.5	USNO-B1
127.0	128.2764	33.1370	B2=20.3, R1=19.8	USNO-B1
127.1	128.2764	33.1371	I=19.4, R=20.2, g=21.6, u=25.1, z=18.9	SDSS
127.3	128.2764	33.1372	B2=20.9, R1=19.4, R2=19.8	USNO-B1
127.6	128.2762	33.0917	I=22.5, R=23.1, g=25.4, u=24.0, z=22.6	SDSS
127.9	128.2180	33.1427	I=21.8, R=22.1, g=22.9, u=24.2, z=21.4	SDSS
131.2	128.2023	33.1039	I=21.7, R=22.0, g=22.7, u=23.8, z=21.7	SDSS
132.7	128.2866	33.1235	I=21.1, R=21.4, g=21.7, u=22.5, z=21.0	SDSS
133.2	128.2881	33.1133	I=19.9, R=20.9, g=22.4, u=24.1, z=19.5	SDSS
133.3	128.2153	33.0864	I=22.3, R=22.6, g=22.7, u=23.3, z=21.5	SDSS
133.5	128.2295	33.0795	I=20.5, R=22.0, g=23.4, u=23.8, z=19.9	SDSS
134.6	128.2017	33.1268	I=20.8, R=22.1, g=23.6, u=24.0, z=20.0	SDSS
134.7	128.2017	33.1268	I=20.7, R=22.1, g=23.8, u=24.1, z=19.8	SDSS
137.6	128.2452	33.1528	I=19.3, R=19.4, g=19.8, u=20.9, z=19.2	SDSS
137.6	128.2452	33.1528	I=19.2, R=19.4, g=19.8, u=20.9, z=19.1	SDSS
139.3	128.2243	33.0796	B1=20.6, B2=20.3, R2=20.0	USNO-B1
140.5	128.2324	33.1524	B2=19.3, I=17.9, R1=18.5, R2=18.3	USNO-B1
140.6	128.2889	33.1044	I=21.3, R=21.5, g=21.9, u=23.1, z=21.0	SDSS
140.6	128.2263	33.0784	I=21.1, R=22.7, g=23.5, u=23.9, z=20.2	SDSS
140.6	128.2324	33.1525	h=15.8, j=16.8, k=15.0	2MASS
140.7	128.1987	33.1050	I=20.5, R=21.7, g=23.1, u=24.3, z=20.0	SDSS
141.6	128.2610	33.1512	I=22.6, R=23.4, g=23.8, u=24.7, z=22.5	SDSS
141.9	128.2105	33.1424	R=22.2	SDSS
142.0	128.2105	33.1424	I=22.0, R=22.4, g=24.7, u=25.2, z=20.6	SDSS
142.9	128.1967	33.1113	B1=20.5, B2=20.3, R1=19.9, R2=19.8	USNO-B1
143.7	128.2022	33.0953	R1=19.9, R2=20.0	USNO-B1
143.8	128.2841	33.0931	B1=15.3, B2=15.4, I=14.0, R1=13.9, R2=14.3	USNO-B1
143.8	128.2840	33.0930	I=15.0, R=14.6, g=15.1, u=16.6, z=14.4	SDSS
143.9	128.2841	33.0930	h=13.2, j=13.6, k=13.2	2MASS
145.6	128.2792	33.1422	I=22.7, R=24.1, g=25.3, u=23.4, z=21.9	SDSS
148.8	128.2932	33.1142	B1=18.2, B2=15.2, I=17.8, R1=18.9, R2=18.4	USNO-B1
149.5	128.2802	33.1429	I=21.4, R=21.7, g=22.7, u=25.2, z=21.2	SDSS
149.7	128.2223	33.0772	I=19.8, R=21.2, g=22.5, u=25.7, z=18.9	SDSS
150.6	128.1952	33.1239	I=21.1, R=21.3, g=21.7, u=22.5, z=21.2	SDSS
150.7	128.1952	33.1240	I=21.1, R=21.1, g=21.8, u=22.0, z=20.9	SDSS
150.9	128.2939	33.1150	R1=19.7, R2=17.0	USNO-B1
152.3	128.2929	33.1249	I=13.5, R=13.7, g=15.1, u=16.1, z=13.7	SDSS
152.4	128.2929	33.1249	h=11.8, j=12.3, k=11.7	2MASS
152.4	128.2929	33.1250	B1=14.7, B2=14.6, I=12.9, R1=13.3, R2=13.3	USNO-B1
153.3	128.2836	33.1412	I=22.4, R=24.5, g=25.1, u=24.6, z=22.2	SDSS
153.6	128.2843	33.0886	B1=20.9, B2=21.1, R2=20.1	USNO-B1
159.0	128.2672	33.1542	I=17.7, R=17.9, g=18.2, u=19.1, z=17.7	SDSS
159.4	128.2672	33.1543	B1=17.7, B2=18.1, I=17.5, R1=17.5, R2=17.6	USNO-B1
159.4	128.2446	33.1589	I=21.2, R=22.3, g=23.8, u=26.4, z=20.7	SDSS
159.5	128.2836	33.0853	B1=15.4, B2=15.5, I=14.3, R1=14.4, R2=14.7	USNO-B1
159.6	128.2836	33.0853	I=14.8, R=15.0, g=15.4, u=16.5, z=14.8	SDSS
159.6	128.2446	33.1589	I=21.2, R=22.4, g=23.8, u=25.2, z=20.9	SDSS
159.7	128.2836	33.0853	h=13.7, j=14.0, k=13.6	2MASS
160.0	128.1980	33.0923	R1=20.0, R2=20.6	USNO-B1
160.6	128.2166	33.0763	I=22.8, R=24.1, g=25.5, u=24.9, z=22.3	SDSS
161.3	128.2343	33.1587	I=20.6, R=21.0, u=24.8, z=20.2	SDSS
161.3	128.2343	33.1587	I=20.5, R=21.0, g=22.3, u=22.8, z=20.3	SDSS
161.7	128.2086	33.1484	I=23.4, R=22.6, g=23.0, u=23.1, z=22.2	SDSS
162.9	128.2972	33.1075	B2=20.7, R1=19.8, R2=20.1	USNO-B1
165.3	128.1908	33.1033	I=20.8, R=21.0, g=21.5, u=22.4, z=20.7	SDSS
165.5	128.2687	33.0736	B2=20.8, R1=19.7	USNO-B1
166.2	128.2893	33.1408	I=24.8, R=24.3, g=25.5, u=25.1, z=21.1	SDSS
166.4	128.2386	33.0686	B2=19.8, I=18.2, R1=18.2, R2=19.5	USNO-B1
166.4	128.2015	33.1442	I=17.7, R=17.8, g=18.3, u=19.3, z=17.6	SDSS
166.4	128.2016	33.1443	h=16.3, j=16.5, k=16.3	2MASS
166.6	128.2015	33.1443	B1=18.2, B2=18.0, I=17.6, R1=17.1, R2=17.6	USNO-B1
167.2	128.2386	33.0684	B2=21.0, R1=19.9, R2=19.7	USNO-B1
167.9	128.2992	33.1087	h=12.3, j=12.8, k=12.3	2MASS
168.0	128.2992	33.1087	I=14.1, R=14.3, g=15.1, u=16.8, z=13.9	SDSS
168.0	128.2992	33.1088	B1=15.1, B2=15.0, I=13.4, R1=13.5, R2=13.7	USNO-B1
168.7	128.2238	33.0709	I=18.3, R1=19.4, R2=18.7	USNO-B1
172.6	128.2083	33.1521	h=15.8, j=17.0, k=15.5	2MASS
172.6	128.1991	33.1445	I=23.1, R=22.4, g=23.6, u=23.1, z=22.6	SDSS
172.7	128.2113	33.1540	B1=20.5, R1=20.0	USNO-B1
173.5	128.2081	33.1523	B1=20.4, B2=19.1, I=17.6, R1=19.2, R2=18.5	USNO-B1
173.6	128.2010	33.0825	I=22.5, R=23.0, g=24.4, u=24.2, z=23.1	SDSS
174.3	128.2108	33.1543	h=14.4, j=15.0, k=14.3	2MASS
174.4	128.2108	33.1543	B1=20.7, B2=20.0, I=16.2, R1=17.6, R2=18.1	USNO-B1
174.4	128.2107	33.1543	I=17.1, R=18.5, g=20.1, u=22.9, z=16.4	SDSS
174.6	128.2519	33.1626	I=22.6, R=22.7, g=23.7, u=23.6, z=23.5	SDSS
174.6	128.2159	33.0722	I=24.0, R=23.1, g=24.5, u=23.8, z=21.9	SDSS
176.8	128.3006	33.1023	I=15.4, R=16.2, g=17.6, u=20.2, z=15.0	SDSS
176.9	128.3007	33.1023	h=13.2, j=13.8, k=13.0	2MASS
177.2	128.2603	33.1619	I=24.6, R=24.9, g=23.4, u=23.8, z=22.4	SDSS
177.7	128.1850	33.1130	I=18.5, R1=19.6, R2=20.3	USNO-B1
178.2	128.2997	33.0984	I=24.8, R=25.0, g=25.4, u=25.1, z=21.2	SDSS
178.8	128.1846	33.1135	B2=21.1, I=18.3, R2=20.2	USNO-B1
179.7	128.2066	33.1535	I=18.2, R=19.4, g=20.9, u=25.3, z=17.5	SDSS
179.8	128.2066	33.1536	h=15.8, j=16.3, k=15.5	2MASS
179.8	128.2882	33.0812	I=21.6, R=22.3, g=23.6, u=24.5, z=21.6	SDSS
179.9	128.2066	33.1536	B2=20.8, I=17.8, R1=19.1, R2=19.6	USNO-B1
180.6	128.1986	33.1475	I=19.4, R=19.6, g=19.9, u=20.8, z=19.4	SDSS
180.8	128.2164	33.1592	B2=20.9, I=18.2, R1=19.1, R2=19.6	USNO-B1
180.8	128.2163	33.1592	I=18.7, R=19.4, g=20.9, u=23.2, z=18.4	SDSS
181.4	128.1855	33.1024	I=19.3, R=20.0, g=21.4, u=23.6, z=18.9	SDSS
181.6	128.1855	33.1023	B2=20.8, R1=19.6, R2=19.6	USNO-B1
182.7	128.1853	33.1016	I=20.3, R=21.3, g=22.5, u=24.6, z=19.8	SDSS
183.6	128.2361	33.0640	I=21.2, R=22.9, g=24.2, u=24.1, z=20.2	SDSS
184.6	128.2970	33.0891	I=21.1, R=22.4, g=23.7, u=23.4, z=20.5	SDSS
185.9	128.1897	33.1392	I=24.8, R=22.7, g=25.0, u=24.2, z=23.2	SDSS
188.4	128.2320	33.1660	I=21.2, R=22.9, g=23.9, u=23.7, z=20.2	SDSS
190.8	128.1977	33.0784	I=24.2, R=25.3, g=24.6, u=25.4, z=20.8	SDSS
190.8	128.2610	33.0636	I=20.2, R=21.4, g=22.7, u=23.5, z=19.4	SDSS
191.1	128.1911	33.1440	I=21.8, R=23.2, g=24.8, u=25.3, z=22.4	SDSS
191.4	128.2413	33.1677	I=21.5, R=21.8, g=22.2, u=23.3, z=22.0	SDSS
191.4	128.2426	33.1677	B1=19.6, B2=19.9, R1=18.8, R2=19.4	USNO-B1
191.4	128.2427	33.1678	I=19.4, R=19.5, g=19.9, u=21.1, z=19.4	SDSS
191.6	128.2058	33.0720	I=22.7, R=23.2, g=24.5, u=25.2, z=22.7	SDSS
193.2	128.3079	33.1125	B1=15.4, B2=15.5, I=14.2, R1=14.2, R2=14.4	USNO-B1
193.2	128.3079	33.1124	I=14.7, R=14.8, g=15.3, u=16.8, z=14.6	SDSS
193.2	128.3079	33.1124	h=13.5, j=13.8, k=13.4	2MASS
193.6	128.2909	33.1512	I=17.0, R=17.4, g=18.5, u=21.0, z=16.7	SDSS
193.6	128.2909	33.1512	h=15.0, j=15.7, k=14.9	2MASS
193.7	128.2909	33.1513	B1=18.8, B2=18.7, I=16.3, R1=16.7, R2=16.9	USNO-B1
197.6	128.2955	33.0808	I=19.8, R=20.2, g=21.0, u=22.7, z=19.6	SDSS
198.6	128.2960	33.0809	B1=21.1, B2=20.9, I=18.5, R2=19.9	USNO-B1
199.8	128.2252	33.0614	B1=21.2, B2=21.1, I=18.3, R2=20.1	USNO-B1
199.8	128.2251	33.0614	I=19.0, R=20.4, g=21.8, u=24.3, z=18.4	SDSS
199.9	128.2676	33.0628	I=21.2, R=22.6, g=23.9, u=26.0, z=20.5	SDSS

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.