Swift Trigger: 534402;

Presumed name: GRB 120923A

BAT	20^h 15^m 10.80^s, +06° 14′ 06.0″
position:	(303.795, 6.235 ± 180″)
XRT	20^h 15^m 10.75^s, +06° 13′ 15.6″
position:	(303.7948, 6.2210 ± 2.3″)
UVOT	No position available.
Galactic N_HI:	9.80×10²⁰ cm^-2
Galactic E(B-V):	NED unavailable

Best RA:	20^h 15^m 10.75^s	= 303.7948 d
Best Dec:	+06° 13′ 15.6″	= 6.2210 d

Gal Lat:	-15.47
Gal Long:	48.48

Sun angle:	123.22°, -8.2 hr East of Sun

¹Sper #4 auto processing.

Galaxies within 3.33 of XRT position

	RA*	Dec*		Catalogue
5.1	303.7958	6.2200	B1=19.1, B2=18.5, I=17.7, R1=17.8, R2=17.9	USNO-B1
11.9	303.7959	6.2179	B1=20.9, B2=20.0, I=18.4, R1=18.6, R2=19.5	USNO-B1
12.9	303.7937	6.2176	B1=20.5, B2=19.2, I=18.0, R1=18.1, R2=18.2	USNO-B1
24.1	303.7965	6.2145	R1=19.2, R2=19.8	USNO-B1
25.0	303.7879	6.2200	B1=20.9, B2=19.9, I=18.9, R1=18.8, R2=19.7	USNO-B1
28.2	303.7937	6.2132	B1=18.5, B2=18.0, I=17.6, R1=17.6, R2=17.8	USNO-B1
31.4	303.8028	6.2245	B1=20.8, B2=20.9, R2=19.9	USNO-B1
32.6	303.7915	6.2295	B1=20.8, B2=20.0, I=18.7, R1=19.2, R2=19.7	USNO-B1
35.8	303.7857	6.2251	B1=18.4, B2=16.3, I=15.7, R1=16.2, R2=16.4	USNO-B1
39.9	303.7843	6.2247	B2=19.9, R1=18.6, R2=18.0	USNO-B1
40.1	303.7838	6.2190	B1=20.1, B2=19.1, I=18.0, R1=18.4, R2=18.6	USNO-B1
43.9	303.7902	6.2323	I=18.8, R1=19.6, R2=20.0	USNO-B1
49.1	303.7951	6.2346	B1=20.8, B2=20.1, I=18.8, R1=19.1, R2=18.9	USNO-B1
49.7	303.7857	6.2106	B1=20.6, B2=19.6, I=18.0, R1=17.9, R2=18.3	USNO-B1
51.5	303.7903	6.2074	B1=20.5, B2=19.5, I=17.9, R1=18.3, R2=18.5	USNO-B1
51.6	303.8035	6.2324	B1=19.4, B2=18.5, I=17.5, R1=17.4, R2=17.8	USNO-B1
51.9	303.7845	6.2311	B1=16.2, B2=15.9, I=14.7, R1=14.8, R2=15.3	USNO-B1
52.3	303.8083	6.2266	B1=21.1, B2=20.3, R1=18.9, R2=20.0	USNO-B1
54.8	303.8014	6.2072	B1=20.4, B2=18.9, I=16.9, R1=17.2, R2=17.6	USNO-B1
55.1	303.8075	6.2297	B1=21.0, R1=19.1, R2=20.1	USNO-B1
55.2	303.8083	6.2136	B1=18.8, B2=17.9, I=17.1, R1=17.2, R2=17.5	USNO-B1
55.4	303.8017	6.2348	B2=20.4, R2=20.0	USNO-B1
56.3	303.7859	6.2081	B2=20.8, I=18.5, R1=18.9, R2=19.6	USNO-B1
59.5	303.8105	6.2263	B2=20.8, I=17.9, R1=18.5, R2=19.1	USNO-B1
62.5	303.7826	6.2334	B1=20.8, B2=19.7, I=18.6, R1=18.7, R2=19.4	USNO-B1
68.0	303.7787	6.2109	B1=19.0, B2=18.0, I=17.2, R1=17.1, R2=17.5	USNO-B1
68.1	303.7782	6.2303	B1=19.7, B2=18.8, I=18.3, R1=18.0, R2=18.2	USNO-B1
71.2	303.7759	6.2273	B1=21.0, R2=20.2	USNO-B1
73.7	303.7892	6.2013	B1=20.5, B2=20.0, I=18.2, R1=19.1, R2=19.4	USNO-B1
75.6	303.7821	6.2378	B2=20.1, I=18.2, R1=19.0, R2=19.2	USNO-B1
75.7	303.8058	6.2390	B1=20.6, B2=19.6, I=14.8, R1=18.9, R2=19.4	USNO-B1
76.6	303.7876	6.2411	B1=19.7, B2=18.8, I=18.1, R1=18.2, R2=18.7	USNO-B1
78.8	303.8126	6.2338	B2=20.8, I=18.6, R2=18.8	USNO-B1
81.3	303.8069	6.2019	B1=20.8, B2=20.3, I=18.2, R1=18.8, R2=19.2	USNO-B1
83.2	303.8009	6.2433	B1=18.2, B2=17.4, I=15.6, R1=16.0, R2=16.3	USNO-B1
85.6	303.7722	6.2131	B1=20.8, B2=19.4, I=17.3, R1=17.9, R2=18.0	USNO-B1
85.7	303.8182	6.2161	B1=19.6, B2=18.7, I=17.9, R1=18.0, R2=18.1	USNO-B1
86.2	303.7983	6.1973	B1=17.7, I=15.3, R1=15.6, R2=15.7	USNO-B1
88.1	303.7735	6.2088	B1=20.4, B2=20.2, R2=19.9	USNO-B1
89.1	303.7987	6.1966	B1=15.8, B2=15.2, I=14.3, R1=14.6, R2=14.9	USNO-B1
90.3	303.7836	6.1985	B1=20.8, B2=21.2, R2=19.9	USNO-B1
90.3	303.8166	6.2084	B1=20.1, B2=19.2, I=18.4, R1=18.5, R2=18.9	USNO-B1
93.5	303.7729	6.2069	B1=20.3, B2=19.8, I=18.3, R1=18.9, R2=19.0	USNO-B1
96.1	303.8216	6.2228	B1=19.3, B2=18.6, I=17.8, R1=17.7, R2=18.0	USNO-B1
96.4	303.7749	6.2030	B1=20.9, I=18.5, R1=19.3, R2=19.4	USNO-B1
98.0	303.7953	6.2482	B1=20.8, B2=20.0, R2=18.6	USNO-B1
99.1	303.7718	6.2057	B2=20.7, I=18.8, R1=19.2, R2=19.5	USNO-B1
103.0	303.7868	6.2485	B1=20.7, R2=19.8	USNO-B1
103.6	303.7679	6.2103	R1=18.9, R2=19.9	USNO-B1
106.5	303.8205	6.2359	B1=15.8, B2=15.2, I=13.9, R1=14.4, R2=14.6	USNO-B1
106.9	303.8217	6.2339	B2=20.6, R2=19.3	USNO-B1
107.0	303.7698	6.2047	B2=20.7, R2=19.6	USNO-B1
108.4	303.8051	6.2493	B2=20.3, I=14.0, R1=18.9, R2=19.1	USNO-B1
108.9	303.7740	6.1989	B2=19.3, R1=17.9, R2=18.5	USNO-B1
109.5	303.7710	6.2401	B1=20.3, B2=19.8, I=18.3, R1=18.8, R2=19.1	USNO-B1
109.9	303.8243	6.2126	R1=19.1, R2=19.8	USNO-B1
110.0	303.7647	6.2147	B1=20.3, B2=19.6, I=18.7, R1=18.6, R2=19.2	USNO-B1
110.5	303.8083	6.2486		NED
110.5	303.8084	6.2486	B1=20.7, B2=20.0, I=18.2, R1=18.9, R2=19.3	USNO-B1
111.7	303.8212	6.2045	B2=20.4, I=18.1, R1=18.7, R2=19.2	USNO-B1
112.7	303.7799	6.1934	B1=17.0, B2=16.6, I=15.3, R1=15.7, R2=16.1	USNO-B1
114.6	303.8016	6.1899	B2=21.2, I=18.8	USNO-B1
114.8	303.7676	6.2379	B1=17.1, B2=16.5, I=15.5, R1=15.5, R2=16.1	USNO-B1
115.0	303.7830	6.1913	B2=21.2, R2=20.2	USNO-B1
117.6	303.7682	6.2019	B1=20.0, B2=19.0, I=18.3, R1=18.5, R2=18.6	USNO-B1
118.4	303.7617	6.2212	B2=20.6, I=18.5, R1=19.3, R2=19.6	USNO-B1
118.4	303.7649	6.2351	B1=20.6, B2=20.6, I=18.6, R1=18.8, R2=19.3	USNO-B1
121.4	303.8265	6.2091	B1=20.9, B2=20.6, R1=19.1, R2=19.5	USNO-B1
121.7	303.8201	6.1984	B1=16.1, B2=15.7, I=14.1, R1=14.4, R2=15.0	USNO-B1
124.5	303.7651	6.2030	B1=19.8, B2=18.9, I=17.7, R1=18.0, R2=17.9	USNO-B1
124.7	303.7608	6.2133	I=18.3, R1=19.3, R2=19.9	USNO-B1
126.0	303.8295	6.2152	B1=20.2, B2=18.9, I=17.5, R1=18.5, R2=18.3	USNO-B1
126.2	303.8169	6.2483	B2=20.6, R1=19.8, R2=19.8	USNO-B1
127.7	303.7665	6.1993	B2=20.8, I=18.1, R1=18.8, R2=19.2	USNO-B1
127.8	303.7632	6.2375	B1=21.0, B2=20.5, I=19.2, R1=19.0, R2=19.6	USNO-B1
130.3	303.8300	6.2119	B2=20.7, R2=20.0	USNO-B1
131.2	303.7816	6.1870	I=17.3, R1=18.4, R2=19.0	USNO-B1
131.5	303.8129	6.2528	B1=18.4, B2=17.8, I=16.6, R1=17.0, R2=17.3	USNO-B1
131.8	303.8299	6.2098	B2=20.9, I=17.2, R1=19.0, R2=19.1	USNO-B1
132.5	303.8235	6.1977	B1=17.8, B2=17.3, I=15.9, R1=16.1, R2=16.6	USNO-B1
133.6	303.8089	6.2553	B1=18.7, B2=17.8, I=16.5, R1=16.8, R2=17.1	USNO-B1
133.9	303.7794	6.2549	B1=21.1, B2=20.5, I=18.8, R1=19.3, R2=19.1	USNO-B1
134.1	303.8321	6.2245	B2=20.5, I=17.8, R1=18.3, R2=18.8	USNO-B1
135.1	303.8261	6.2419	B2=20.5, R1=19.4, R2=19.9	USNO-B1
137.4	303.8266	6.1996	B1=20.0, B2=18.1, I=16.3, R1=17.8, R2=17.4	USNO-B1
138.5	303.8017	6.1831	B1=21.0, B2=21.0, R2=19.9	USNO-B1
138.8	303.7562	6.2246	B1=20.5, B2=19.7, I=17.8, R1=18.4, R2=18.3	USNO-B1
139.9	303.7889	6.2594	B1=21.0, B2=20.0, I=18.8, R1=19.3, R2=19.7	USNO-B1
139.9	303.7919	6.1822	B1=17.8, B2=15.8, I=15.8, R1=15.7, R2=15.3	USNO-B1
140.0	303.7649	6.2461	B2=21.2, I=18.7, R1=19.2, R2=19.7	USNO-B1
140.0	303.7671	6.2484	B1=19.8, B2=18.6, I=17.4, R1=17.4, R2=17.8	USNO-B1
140.2	303.7921	6.1822	B2=15.9, R2=15.7	USNO-B1
141.1	303.8299	6.2389	B1=20.4, B2=18.8, I=16.6, R1=17.3, R2=17.6	USNO-B1
143.4	303.7618	6.1984	B1=20.0, B2=19.1, I=18.0, R1=18.2, R2=18.4	USNO-B1
143.7	303.7636	6.1959	B1=20.6, B2=19.9, I=18.3, R1=18.6, R2=19.1	USNO-B1
144.3	303.8103	6.1840	B1=20.7, B2=19.7, I=17.6, R1=18.3, R2=18.2	USNO-B1
145.1	303.8343	6.2118	I=18.7, R1=19.6	USNO-B1
145.4	303.7700	6.2530	B1=20.1, B2=19.2, I=18.2, R1=18.7, R2=18.9	USNO-B1
145.6	303.7797	6.1834	B1=21.0, B2=19.1, I=17.3, R1=17.0, R2=18.0	USNO-B1
147.4	303.7565	6.2059	B1=17.4, R2=19.7	USNO-B1
148.1	303.7722	6.2555	B1=20.6, B2=20.6	USNO-B1
149.1	303.8364	6.2188	B2=20.3, I=18.5, R1=18.2, R2=19.1	USNO-B1
149.8	303.7530	6.2185	I=17.9, R2=18.6	USNO-B1
150.2	303.7577	6.2014	B1=18.2, B2=17.5, I=16.3, R1=16.5, R2=16.9	USNO-B1
150.6	303.7704	6.1869	B1=20.6, B2=17.7	USNO-B1
151.4	303.8155	6.1843	B1=20.3, B2=19.4, I=18.4, R1=18.4, R2=18.9	USNO-B1
153.3	303.7648	6.1907	B2=21.0, R2=19.9	USNO-B1
153.5	303.8319	6.1995	I=18.2, R1=18.8, R2=19.9	USNO-B1
153.6	303.8057	6.2623	B1=19.0, B2=18.2, I=17.4, R2=16.7	USNO-B1
153.8	303.7726	6.1844	B1=20.7, R2=20.3	USNO-B1
158.3	303.7512	6.2282	B1=20.8, B2=20.1, R1=19.0, R2=19.3	USNO-B1
158.8	303.7687	6.1853	R1=19.2, R2=20.0	USNO-B1
158.9	303.7919	6.2650	B1=15.3, B2=15.0, I=13.8, R1=14.1, R2=14.6	USNO-B1
159.0	303.7871	6.1775	B1=21.1, B2=20.5, R2=20.0	USNO-B1
160.0	303.8271	6.2518	B1=20.7, B2=20.3, I=18.8, R1=19.3, R2=19.8	USNO-B1
161.5	303.8399	6.2224	B2=20.7, R2=19.9	USNO-B1
164.1	303.7491	6.2169	B2=20.1, I=17.9, R1=18.6, R2=18.7	USNO-B1
164.3	303.8295	6.2509	B2=20.9, R2=20.0	USNO-B1
166.9	303.8249	6.2564	B1=20.6, B2=20.1, R2=19.9	USNO-B1
167.3	303.8100	6.2649	B2=20.5, R2=20.2	USNO-B1
167.5	303.7869	6.2669	I=18.5, R1=19.4, R2=20.0	USNO-B1
167.7	303.7946	6.1744	B2=20.7, I=18.6, R1=19.2, R2=19.4	USNO-B1
168.5	303.8137	6.2639	I=18.5, R1=19.3	USNO-B1
169.2	303.8188	6.1805	B1=19.6, B2=18.5, I=17.3, R1=17.9, R2=17.8	USNO-B1
169.6	303.8106	6.1766	B1=19.6, B2=18.7, I=17.7, R1=18.2, R2=18.3	USNO-B1
169.8	303.7980	6.1739	I=17.7, R2=18.1	USNO-B1
172.7	303.8037	6.1739	I=18.5, R1=19.7, R2=19.8	USNO-B1
173.4	303.7886	6.2688	B1=16.9, B2=16.3, I=14.5, R1=14.8, R2=15.3	USNO-B1
173.5	303.8315	6.1895	B1=20.8, B2=20.4, R1=19.6, R2=19.7	USNO-B1
174.7	303.8385	6.2427	I=18.4, R1=19.1, R2=19.6	USNO-B1
175.1	303.7798	6.1747	B1=18.0, I=16.2, R1=15.7, R2=15.7	USNO-B1
177.0	303.7743	6.2657	B1=20.1, B2=19.9, I=18.3, R1=18.8, R2=18.9	USNO-B1
177.5	303.7738	6.2656	I=18.3, R1=19.6	USNO-B1
178.6	303.7620	6.1836	B2=20.1, I=18.2, R1=18.7, R2=19.0	USNO-B1
180.1	303.7858	6.2702	B1=19.8, B2=18.5, I=17.4, R1=17.6, R2=17.6	USNO-B1
180.2	303.7559	6.1892	B2=20.9, I=17.7, R1=18.7, R2=19.4	USNO-B1
180.3	303.7978	6.2710	B1=18.4, B2=16.5, I=14.8, R1=16.1, R2=15.7	USNO-B1
180.8	303.7457	6.2092	B1=19.9, B2=18.8, I=17.3, R1=17.4, R2=17.7	USNO-B1
180.8	303.7444	6.2177	R1=19.3, R2=19.1	USNO-B1
181.1	303.7666	6.2628	B1=18.1, B2=17.6, I=16.8, R1=17.0, R2=17.4	USNO-B1
181.4	303.7722	6.1759	I=18.5, R1=19.6	USNO-B1
181.5	303.8408	6.1998	B1=20.1, B2=19.3, I=18.3, R1=18.7, R2=18.8	USNO-B1
181.7	303.7442	6.2166	B1=17.6, B2=17.0, I=15.2, R1=15.8, R2=16.1	USNO-B1
181.9	303.8431	6.2368	B1=18.9, B2=17.9, I=17.0, R1=17.1, R2=17.4	USNO-B1
182.0	303.7600	6.2579	I=18.4, R1=19.4	USNO-B1
182.1	303.7973	6.2715	B1=19.1, R1=16.2	USNO-B1
182.1	303.8253	6.2615	B1=20.6, B2=19.9, I=16.6, R1=18.2, R2=18.3	USNO-B1
182.4	303.7467	6.2043	B2=19.9, I=18.4, R1=18.3, R2=18.9	USNO-B1
182.7	303.8083	6.2699	B1=20.8, B2=20.5, R1=19.0, R2=19.9	USNO-B1
183.0	303.8054	6.1713	B2=19.7, R2=19.5	USNO-B1
183.1	303.7462	6.2050	I=17.1, R1=18.3	USNO-B1
183.4	303.8073	6.1716	I=18.4, R1=19.3, R2=19.6	USNO-B1
184.2	303.7442	6.2115	I=19.1, R1=19.7, R2=19.7	USNO-B1
185.3	303.7459	6.2381	B1=17.4, B2=16.9, I=16.3, R1=16.4, R2=16.7	USNO-B1
186.7	303.7452	6.2372	R1=19.3, R2=19.7	USNO-B1
186.9	303.7636	6.2627	B1=20.1, B2=18.4, I=18.6, R1=19.2, R2=19.0	USNO-B1
188.8	303.7517	6.1908	B1=18.9, B2=18.0, I=17.4, R1=17.1, R2=17.5	USNO-B1
188.9	303.7636	6.2633	I=18.8, R1=18.3, R2=18.6	USNO-B1
189.1	303.7867	6.1691	B1=19.6, B2=17.5, I=17.6, R1=17.7, R2=17.9	USNO-B1
189.5	303.7525	6.2527	I=18.8, R1=19.1, R2=20.1	USNO-B1
189.7	303.8453	6.2049	B2=20.6, R2=20.3	USNO-B1
190.4	303.8004	6.1684	B1=20.8, B2=19.4, I=16.9, R1=17.6, R2=17.8	USNO-B1
190.9	303.8119	6.2713	B1=19.2, B2=18.0, I=17.2, R1=17.1, R2=17.1	USNO-B1
191.2	303.7543	6.2557	R1=19.9, R2=20.3	USNO-B1
191.3	303.8277	6.2629	I=18.6, R1=18.7	USNO-B1
191.5	303.8051	6.2732	B1=20.3, B2=20.0, I=18.5, R1=18.8, R2=19.1	USNO-B1
192.1	303.8285	6.2625	B1=19.9, B2=18.2, R2=18.1	USNO-B1
193.3	303.7976	6.1674	B1=20.7, B2=19.7, I=18.1, R1=18.7, R2=18.9	USNO-B1
193.7	303.7824	6.1686	B1=19.4, B2=18.3, I=17.8, R1=17.9, R2=17.9	USNO-B1
194.1	303.7782	6.1697	B1=17.4, B2=16.7, I=15.6, R1=15.8, R2=16.2	USNO-B1
194.2	303.8314	6.2608	B1=19.9, B2=19.1, I=18.1, R1=18.3, R2=18.6	USNO-B1
194.3	303.7750	6.2712	B1=17.5, B2=16.8, I=15.7, R1=15.9, R2=16.2	USNO-B1
196.8	303.7811	6.1681	B1=18.9, B2=18.1, I=17.3, R1=17.3, R2=17.6	USNO-B1
197.4	303.8498	6.2249	B1=20.7, B2=20.3, I=18.6, R1=19.1, R2=19.2	USNO-B1
197.6	303.8498	6.2264	B1=21.0, B2=20.5, I=18.7, R1=19.2, R2=19.4	USNO-B1
198.6	303.7476	6.2500	B1=20.8, B2=20.6, I=18.6, R1=19.2, R2=19.4	USNO-B1
199.1	303.7784	6.2739	B2=18.5, R2=19.6	USNO-B1
199.7	303.8435	6.2481	B1=16.1, B2=15.7, I=14.4, R1=14.8, R2=15.2	USNO-B1
199.9	303.7397	6.2302	B2=20.7, I=18.8, R1=19.6, R2=19.4	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