Swift Trigger: 885314;

Presumed name: GRB 190123A

BAT	03^h 32^m 54.96^s, +45° 29′ 02.4″
position:	(53.229, 45.484 ± 180″)
XRT	03^h 32^m 52.97^s, +45° 31′ 27.3″
position:	(53.22071, 45.52425 ± 4.0″)
UVOT	No position available.
Galactic N_HI:	3.02×10⁰ cm^-2
Galactic E(B-V):	0.433 mag

Best RA:	03^h 32^m 52.97^s	= 53.22071 d
Best Dec:	+45° 31′ 27.3″	= 45.52425 d

Gal Lat:	-8.61
Gal Long:	150.25

Sun angle:	116.26°, -7.2 hr East of Sun

¹Sper #1 auto processing.

Galaxies within 3.33 of XRT position

	RA*	Dec*		Catalogue
9.6	53.2171	45.5251	B2=20.1, R2=19.6	USNO-B1
12.4	53.2165	45.5261	B2=21.0, I=18.6, R1=19.6, R2=19.1	USNO-B1
27.1	53.2232	45.5169	B2=21.4, I=18.3, R1=19.4, R2=19.0	USNO-B1
27.5	53.2230	45.5168	I=18.1, R1=19.3	USNO-B1
32.2	53.2232	45.5330	B1=19.9, B2=20.7, I=18.5, R2=19.7	USNO-B1
32.6	53.2332	45.5267	I=18.8, R2=20.3	USNO-B1
45.2	53.2100	45.5343	B1=21.0, B2=20.9, I=18.9, R1=19.5, R2=20.0	USNO-B1
48.5	53.2093	45.5351	B1=20.4, R1=19.4	USNO-B1
54.2	53.2335	45.5122	I=18.3, R2=20.3	USNO-B1
58.7	53.2435	45.5275	B1=20.6, I=19.0, R2=19.1	USNO-B1
62.4	53.2436	45.5308	B1=21.1, R2=19.1	USNO-B1
63.7	53.2035	45.5372	B2=21.4, I=18.7, R1=19.7, R2=19.1	USNO-B1
67.6	53.2475	45.5239	B1=18.9, I=18.5	USNO-B1
70.0	53.1941	45.5186	B1=20.9, B2=17.6	USNO-B1
76.1	53.2037	45.5417	B1=20.1, B2=20.4, I=18.5, R1=18.7, R2=19.1	USNO-B1
86.9	53.2545	45.5195	B1=21.2, I=18.7, R2=20.4	USNO-B1
90.1	53.2562	45.5216	I=18.4, R2=19.1	USNO-B1
90.9	53.1966	45.5055	B1=20.8, I=18.7, R1=18.7	USNO-B1
93.4	53.1880	45.5121	B2=20.8, I=18.5, R1=19.5, R2=19.5	USNO-B1
93.5	53.1878	45.5122	B1=20.4, B2=20.3, I=18.3	USNO-B1
93.7	53.1894	45.5383	B1=18.7, B2=18.3, I=16.7, R1=17.2, R2=17.1	USNO-B1
93.9	53.2575	45.5283	B1=14.5, B2=14.9, I=13.5, R1=13.8, R2=14.0	USNO-B1
94.0	53.2546	45.5134	B1=20.9, B2=20.3, R2=20.6	USNO-B1
95.4	53.2144	45.4981	B1=19.8, B2=20.7, I=18.0	USNO-B1
98.9	53.2259	45.4970	B1=17.7, B2=17.1, I=16.1, R1=16.5, R2=16.0	USNO-B1
100.7	53.2182	45.4963	B1=20.6, B2=21.4, I=18.8, R2=20.0	USNO-B1
103.2	53.1803	45.5197	B1=21.1, B2=20.9, I=18.9, R2=19.4	USNO-B1
103.2	53.1800	45.5211	B2=20.5, R1=19.6	USNO-B1
104.2	53.2388	45.4982	B2=20.3, I=18.6, R2=20.3	USNO-B1
104.5	53.1793	45.5233	I=16.2, R1=18.5	USNO-B1
105.4	53.2624	45.5264	R1=17.8, R2=18.9	USNO-B1
106.3	53.1786	45.5227	B1=20.0, B2=19.6, R2=18.6	USNO-B1
107.5	53.1781	45.5226	B1=18.4, B2=18.0	USNO-B1
108.2	53.1787	45.5304	I=18.7, R1=19.2, R2=19.1	USNO-B1
109.0	53.1776	45.5222	h=14.2, j=14.8, k=13.6	2MASS
109.6	53.1949	45.4998	B1=20.0, B2=18.6	USNO-B1
111.1	53.1946	45.4994	h=14.2, j=15.2, k=13.6	2MASS
112.5	53.1962	45.5504	B1=20.6, B2=19.5, R2=18.3	USNO-B1
113.0	53.1941	45.5495	B1=17.2, B2=17.1, I=15.3, R1=15.6, R2=15.8	USNO-B1
117.9	53.2170	45.4916	B2=21.4, I=18.7, R1=19.2, R2=20.0	USNO-B1
121.7	53.2655	45.5369	B1=18.1, B2=18.0, I=16.4, R1=16.9, R2=17.1	USNO-B1
127.8	53.2336	45.5586	B2=20.8, I=18.5, R1=19.1, R2=19.1	USNO-B1
127.9	53.2012	45.5571	I=18.5, R2=19.1	USNO-B1
131.6	53.2668	45.5414	I=18.6, R2=20.1	USNO-B1
134.2	53.2511	45.4937	B1=16.9, B2=16.9, I=15.3, R1=15.6, R2=15.8	USNO-B1
136.4	53.2631	45.5478	B2=20.3, R1=19.6	USNO-B1
136.4	53.1667	45.5228	I=18.4, R1=18.0, R2=18.8	USNO-B1
137.2	53.2690	45.5418	I=18.6, R2=19.1	USNO-B1
137.6	53.1997	45.5595	I=18.7, R2=20.0	USNO-B1
139.0	53.1975	45.5592	B1=16.9, B2=16.8, I=15.3, R1=15.7, R2=15.6	USNO-B1
145.4	53.2729	45.5414	I=18.6, R2=19.7	USNO-B1
146.0	53.2484	45.4886	I=18.6, R1=19.6, R2=19.1	USNO-B1
146.7	53.1909	45.5592	B2=20.2, I=18.4	USNO-B1
151.7	53.1643	45.5389	B1=16.7, B2=16.7, I=14.4, R1=15.0, R2=15.0	USNO-B1
152.7	53.2139	45.5664	B2=19.7, I=16.4, R1=17.5, R2=17.5	USNO-B1
153.5	53.2235	45.5669	B1=14.9, B2=14.7, I=12.7, R1=13.1, R2=13.4	USNO-B1
158.3	53.2107	45.4808	I=18.7, R1=19.0, R2=19.1	USNO-B1
160.5	53.2192	45.5688	B1=18.4, I=17.3, R2=19.5	USNO-B1
161.2	53.2112	45.4800	B1=21.2, I=18.7, R2=20.3	USNO-B1
161.8	53.2688	45.4945	B1=19.1, B2=18.7, I=17.4, R1=17.6, R2=17.6	USNO-B1
161.9	53.2371	45.5677	B1=17.5, B2=18.0, I=15.1	USNO-B1
162.4	53.2771	45.5025	B1=20.9, B2=18.9, I=18.1	USNO-B1
162.5	53.2373	45.5679	B1=19.3, B2=18.2, I=15.8, R1=16.1	USNO-B1
162.9	53.2637	45.5580	B1=20.8, B2=21.3, R2=20.4	USNO-B1
163.5	53.1868	45.4856	I=18.4, R1=19.6, R2=20.3	USNO-B1
165.4	53.2172	45.5701	I=19.0, R2=20.1	USNO-B1
166.3	53.1611	45.5440	B1=18.5, B2=18.2, I=16.6, R1=16.8, R2=17.2	USNO-B1
167.4	53.1656	45.4983	B1=20.9, B2=20.2, R2=18.9	USNO-B1
168.4	53.1542	45.5286	R1=19.9, R2=20.2	USNO-B1
168.5	53.2438	45.5682	I=18.8, R2=20.2	USNO-B1
168.9	53.2618	45.5613	B2=20.3, I=18.7, R1=19.5, R2=20.2	USNO-B1
172.2	53.2845	45.5072	B1=16.3, B2=16.6	USNO-B1
172.5	53.1746	45.4889	B1=20.8, B2=20.2, I=18.4, R1=18.6, R2=19.3	USNO-B1
173.7	53.2347	45.5715	B1=20.0, B2=19.4, I=16.9, R1=17.4, R2=17.3	USNO-B1
176.3	53.2286	45.5729	B2=21.4, R1=19.7, R2=20.5	USNO-B1
183.7	53.1608	45.5532	I=18.2, R1=19.0, R2=18.8	USNO-B1
183.7	53.2202	45.4732	B1=21.2, B2=20.9, I=18.6	USNO-B1
184.2	53.2205	45.4731	I=18.4, R1=18.5, R2=18.9	USNO-B1
187.5	53.2591	45.4797	B1=17.9, B2=17.7, I=16.0, R1=16.3, R2=16.5	USNO-B1
191.4	53.1607	45.4917	I=18.9, R2=20.5	USNO-B1
192.0	53.1731	45.5659	I=18.1, R1=16.7	USNO-B1
194.3	53.1715	45.5658	I=16.5, R1=16.7	USNO-B1
196.1	53.2075	45.5779	B1=19.3, R2=19.8	USNO-B1
197.9	53.1853	45.4752	B1=19.1, B2=18.2, I=16.1, R1=18.1, R2=16.9	USNO-B1

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