Swift Trigger: 882747;

Presumed name: GRB 190109A

BAT	02^h 12^m 52.32^s, +38° 06′ 36.0″
position:	(33.218, 38.110 ± 180″)
XRT	02^h 12^m 48.48^s, +38° 06′ 28.8″
position:	(33.2020, 38.1080 ± 2.1″)
UVOT	No position available.
Galactic N_HI:	4.35×10⁰ cm^-2
Galactic E(B-V):	0.050 mag

Best RA:	02^h 12^m 48.48^s	= 33.2020 d
Best Dec:	+38° 06′ 28.8″	= 38.1080 d

Gal Lat:	-22.04
Gal Long:	140.1

Sun angle:	113.63°, -6.9 hr East of Sun

¹Sper #4 auto processing.

Galaxies within 3.33 of XRT position

	RA*	Dec*		Catalogue
4.1	33.2034	38.1076	B2=20.3, I=18.5, R1=18.6	USNO-B1
4.3	33.2030	38.1071	B1=21.1, B2=18.6, I=18.5	USNO-B1
4.9	33.2020	38.1093	B2=19.3, I=17.8, R1=19.5	USNO-B1
6.8	33.1996	38.1075		NED
8.9	33.1989	38.1083	B1=20.7, B2=19.2, R2=19.2	USNO-B1
12.7	33.2001	38.1112	B1=17.7, B2=20.3, I=18.4, R1=19.2	USNO-B1
23.2	33.1939	38.1072	B1=18.1, B2=18.6, I=18.5, R2=18.9	USNO-B1
45.4	33.2155	38.1148	B1=19.3, B2=17.8, I=17.8, R1=18.4, R2=18.3	USNO-B1
45.7	33.1892	38.1003		NED
45.8	33.1890	38.1004	B1=17.9, B2=16.1, I=16.2, R1=16.7, R2=17.0	USNO-B1
47.5	33.1994	38.1210	B1=18.4, B2=16.9, I=17.3, R1=17.8, R2=17.6	USNO-B1
47.9	33.1851	38.1077	B1=20.8, I=18.3, R2=19.4	USNO-B1
48.8	33.1889	38.1168	B1=20.8, I=18.9, R2=20.6	USNO-B1
48.9	33.2192	38.1094		NED
50.5	33.1890	38.1176	I=18.5, R2=19.3	USNO-B1
52.9	33.1974	38.1222	B1=19.9, B2=19.5, I=16.2, R1=17.1, R2=17.2	USNO-B1
52.9	33.1975	38.1222		NED
64.6	33.1897	38.1231	B1=20.6, I=17.4	USNO-B1
68.5	33.2254	38.1125		NED
69.4	33.2212	38.1197		NED
69.6	33.2259	38.1124	B=21.1, R=20.0	APM-N
70.4	33.2263	38.1122	I=17.7, R2=19.4	USNO-B1
71.1	33.2213	38.1207	I=18.4, R1=20.0	USNO-B1
73.4	33.2077	38.0881	B=20.7, R=20.0	APM-N
73.6	33.1842	38.1228		NED
73.6	33.1840	38.1228	B1=20.6, B2=20.7, I=18.7, R1=19.5	USNO-B1
75.0	33.2071	38.1283		NED
75.1	33.1836	38.1230	I=16.9, R1=19.2	USNO-B1
76.9	33.2247	38.0963	R1=19.6, R2=19.4	USNO-B1
80.0	33.2222	38.1235	B1=18.0, B2=16.0, I=16.3, R1=17.0, R2=17.0	USNO-B1
80.3	33.2221	38.1236		NED
80.8	33.2084	38.0861	B=21.3, R=20.0	APM-N
81.0	33.2305	38.1063	B=21.1, R=19.3	APM-N
81.1	33.2305	38.1060	B1=20.5, I=18.2, R2=19.2	USNO-B1
81.6	33.2308	38.1065	B=21.0, R=20.0	APM-N
82.5	33.2085	38.0857	B=21.5, R=20.0	APM-N
82.5	33.2083	38.0856		NED
82.7	33.2259	38.0948	B=17.9, R=16.1	APM-N
82.8	33.2258	38.0947		NED
85.7	33.1731	38.1150	I=26.9, R2=19.1	USNO-B1
87.2	33.1742	38.0978		NED
87.3	33.1857	38.0874	B1=19.4, I=18.6, R2=19.5	USNO-B1
89.1	33.2313	38.0991	B1=20.8, I=18.9, R2=19.8	USNO-B1
91.4	33.2338	38.1123	B=20.5, R=19.5	APM-N
93.8	33.2289	38.1232	B=21.6, R=20.0	APM-N
94.9	33.2292	38.1233		NED
95.1	33.1884	38.1322	B1=23.0, I=17.6, R2=19.8	USNO-B1
95.1	33.2036	38.1344	B2=21.1, I=18.4, R1=19.5, R2=19.2	USNO-B1
95.3	33.2293	38.1234	B2=20.9, I=17.7, R1=18.6, R2=18.6	USNO-B1
97.3	33.1898	38.1333	B=21.5, R=17.6	APM-N
97.4	33.1896	38.1333		NED
97.5	33.1895	38.1332	B1=20.9, B2=18.5, I=16.3, R1=18.1, R2=18.1	USNO-B1
98.5	33.1683	38.1008		NED
98.9	33.1683	38.1009	B=16.8, R=15.0	APM-N
99.6	33.1717	38.1219		NED
101.8	33.2268	38.0875	I=19.0, R1=17.6	USNO-B1
102.1	33.1804	38.0853	B1=24.1, R2=20.2	USNO-B1
104.9	33.1692	38.1217		NED
106.6	33.2358	38.0950		NED
106.7	33.2313	38.0894		NED
107.3	33.1887	38.0801	I=18.5, R2=19.4	USNO-B1
107.9	33.2004	38.1380	B2=19.2, R2=17.6	USNO-B1
108.9	33.1955	38.0782	B=20.1, R=17.8	APM-N
111.0	33.2029	38.1388	B2=19.1, R1=19.6	USNO-B1
111.9	33.2277	38.0844	B=22.1, R=19.7	APM-N
112.2	33.1673	38.0930	I=18.9, R1=19.4	USNO-B1
113.8	33.2029	38.1397		NED
114.3	33.1977	38.1396	B1=20.5, B2=18.6, I=18.5, R1=19.0, R2=18.8	USNO-B1
116.2	33.2298	38.0843	B1=19.1, I=18.1	USNO-B1
116.4	33.2204	38.1369		NED
117.4	33.1827	38.1369	I=18.1, R1=18.8, R2=20.6	USNO-B1
118.0	33.1625	38.1189		NED
119.2	33.2304	38.0836		NED
121.9	33.1730	38.1330	I=18.5, R2=18.3	USNO-B1
124.1	33.1720	38.1331	B1=20.9, I=18.4, R2=19.4	USNO-B1
125.7	33.1754	38.1358		NED
127.4	33.1571	38.1063	R1=19.7, R2=19.4	USNO-B1
127.9	33.2468	38.1123	B1=23.1, R1=20.0, R2=19.1	USNO-B1
128.5	33.2112	38.1429	I=18.4, R2=19.1	USNO-B1
128.5	33.2114	38.1429	B=22.1, R=19.8	APM-N
128.5	33.2467	38.1133		NED
129.4	33.2109	38.1432	I=18.7, R1=19.2, R2=16.9	USNO-B1
130.3	33.2096	38.1437	B1=21.1, R2=19.3	USNO-B1
130.5	33.1818	38.1406	B1=19.4, B2=17.6, I=18.0, R1=18.4, R2=18.2	USNO-B1
131.0	33.1846	38.0742		NED
133.0	33.2144	38.1436	B2=21.2, I=18.5, R2=19.1	USNO-B1
134.2	33.2492	38.1103		NED
135.4	33.1578	38.1224	I=18.6, R2=19.9	USNO-B1
136.3	33.2493	38.1010	I=18.5, R2=19.4	USNO-B1
136.6	33.1905	38.0712	B=22.1, R=19.0	APM-N
136.7	33.1542	38.1130	B2=21.4, I=18.8, R2=19.5	USNO-B1
138.7	33.1914	38.0704	R1=17.0, R2=19.2	USNO-B1
139.3	33.2471	38.0925		NED
139.3	33.1588	38.1264		NED
140.2	33.1910	38.0701	B1=18.8, I=18.7, R2=20.3	USNO-B1
140.6	33.1903	38.1459	I=18.9, R2=20.2	USNO-B1
142.4	33.1616	38.1316	I=18.6, R2=17.9	USNO-B1
143.5	33.2100	38.1474	B=21.6, R=20.0	APM-N
144.6	33.1607	38.1316	B2=21.7, I=18.5, R2=19.5	USNO-B1
146.0	33.2532	38.1034	R1=19.5, R2=19.4	USNO-B1
147.0	33.2493	38.0912	B2=21.4, I=18.5, R1=19.9, R2=19.4	USNO-B1
147.3	33.2537	38.1036	B1=21.2, I=18.3	USNO-B1
147.6	33.1562	38.1281		NED
147.8	33.1855	38.0690	I=18.5, R1=19.6, R2=19.1	USNO-B1
151.1	33.2257	38.1456	B2=20.8, I=15.8, R1=18.8	USNO-B1
151.4	33.1687	38.1409	B=14.9, R=14.0	APM-N
151.9	33.2396	38.0781		NED
151.9	33.1683	38.1408		NED
154.8	33.1628	38.0780	I=18.5, R1=20.1	USNO-B1
155.5	33.2263	38.1467		NED
156.6	33.2269	38.1468	B=16.2, R=15.4	APM-N
157.1	33.2272	38.1469	B=16.7, R=20.0	APM-N
158.7	33.2580	38.1097	B=21.3, R=17.9	APM-N
158.8	33.2579	38.1097		NED
160.8	33.2373	38.1430	B1=17.1, B2=15.4, I=15.2, R1=16.1, R2=16.1	USNO-B1
160.9	33.2371	38.1431		NED
160.9	33.1550	38.1331	B1=20.7, I=18.5, R2=18.1	USNO-B1
161.9	33.1922	38.1523	I=18.5, R2=19.4	USNO-B1
162.5	33.2592	38.1047		NED
163.7	33.2219	38.1507	R1=19.8, R2=20.7	USNO-B1
163.9	33.2065	38.1534	I=18.5, R1=19.7, R2=19.4	USNO-B1
164.8	33.2170	38.0638	B1=20.2, B2=18.6	USNO-B1
166.9	33.2175	38.0633	B=18.2, R=17.0	APM-N
167.0	33.2329	38.1475		NED
167.7	33.2175	38.0631		NED
170.2	33.2142	38.0617	B1=20.4, B2=18.8, I=18.5, R1=19.3, R2=19.0	USNO-B1
172.0	33.1525	38.0803		NED
172.1	33.1613	38.1436		NED
172.2	33.1616	38.1437	B1=21.0, B2=19.6, I=18.0, R1=18.8, R2=18.6	USNO-B1
172.9	33.1557	38.1393	I=17.9, R1=19.7	USNO-B1
175.9	33.1446	38.1269		NED
178.4	33.1465	38.1314	R1=19.8, R2=20.1	USNO-B1
179.2	33.1925	38.1572		NED
180.6	33.1515	38.1386	B1=21.1, I=18.1, R2=19.8	USNO-B1
182.5	33.2142	38.1578		NED
182.5	33.1481	38.0802	B=18.7, R=20.0	APM-N
184.2	33.2167	38.1578	B1=18.6, B2=21.3	USNO-B1
184.4	33.2434	38.1475	B1=19.9, B2=18.0, I=18.1, R1=19.1, R2=18.6	USNO-B1
184.5	33.2472	38.1449	B1=19.0, I=18.3	USNO-B1
184.9	33.1418	38.0883	I=18.3, R1=19.1, R2=20.4	USNO-B1
184.9	33.2467	38.1455	B=21.5, R=20.0	APM-N
185.1	33.2659	38.0974	B1=20.5, B2=21.2, I=18.8	USNO-B1
185.8	33.1417	38.0878	R1=19.3, R2=20.7	USNO-B1
186.2	33.1542	38.0725		NED
186.7	33.1361	38.1095	I=18.5, R2=19.4	USNO-B1
186.9	33.1694	38.0629	B2=21.1, I=17.9, R2=18.9	USNO-B1
187.1	33.2633	38.1274	B1=21.1, B2=20.6, R2=20.6	USNO-B1
188.0	33.2167	38.1589	h=0.0, j=0.0, k=13.9	2MASS
188.1	33.2166	38.1590	B1=18.4, B2=15.8, I=15.7, R2=15.4	USNO-B1
188.3	33.2167	38.1589		NED
189.7	33.1358	38.1158	I=18.4, R1=20.2, R2=20.4	USNO-B1
190.3	33.1388	38.0903		NED
190.5	33.1671	38.0628		NED
191.6	33.2687	38.1167	B=18.9, R=17.9	APM-N
193.0	33.1449	38.1372	R1=19.5, R2=19.9	USNO-B1
193.4	33.2186	38.0559	B1=19.1, I=18.4	USNO-B1
193.6	33.2448	38.1499	B1=20.8, B2=20.2, R1=19.6, R2=19.5	USNO-B1
195.1	33.2208	38.1601	R1=18.9, R2=20.4	USNO-B1
198.1	33.2554	38.1433		NED
198.7	33.2600	38.1389		NED
199.0	33.2600	38.1392	B=18.2, R=16.6	APM-N
199.4	33.1317	38.1056		NED
199.8	33.1904	38.0533		NED

Queried APM-N, SDSS, PSCz, SSS, NED, 2MASSX, USNO-B1.

* 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