Swift Trigger: 1200812;

Presumed name: GRB 231205B

BAT	03^h 36^m 36.96^s, +27° 08′ 45.6″
position:	(54.154, 27.146 ± 180″)
XRT	03^h 36^m 35.77^s, +27° 08′ 26.1″
position:	(54.14905, 27.14058 ± 3.5″)
UVOT	No position available.
Galactic N_HI:	9.39×10²⁰ cm^-2
Galactic E(B-V):	0.181 mag

Best RA:	03^h 36^m 35.77^s	= 54.14905 d
Best Dec:	+27° 08′ 26.1″	= 27.14058 d

Gal Lat:	-22.77
Gal Long:	162.49

Sun angle:	163.54°, -10.8 hr East of Sun

Galaxies within 200 of XRT position

	RA*	Dec*		Catalogue
20.1	54.1533	27.1447		NED
25.2	54.1412	27.1403	B=19.3, R=18.4	APM-N
25.8	54.1408	27.1406		NED
27.1	54.1575	27.1403		NED
27.4	54.1408	27.1428		NED
38.5	54.1583	27.1336		NED
38.7	54.1479	27.1514		NED
41.0	54.1593	27.1338	B=21.1, R=20.0	APM-N
43.5	54.1621	27.1431		NED
45.7	54.1611	27.1338	I=18.8, R1=19.0, R2=19.6	USNO-B1
47.1	54.1592	27.1503		NED
48.2	54.1396	27.1511		NED
52.1	54.1479	27.1550		NED
52.3	54.1479	27.1551	B1=20.1, B2=19.4, I=17.0, R1=17.7, R2=17.8	USNO-B1
52.7	54.1640	27.1345	B2=20.6, I=18.5, R1=19.8, R2=19.8	USNO-B1
53.0	54.1638	27.1344		NED
53.0	54.1363	27.1314		NED
53.6	54.1650	27.1367		NED
54.3	54.1635	27.1327	B=21.1, R=18.4	APM-N
54.4	54.1655	27.1369	B=21.1, R=19.9	APM-N
57.0	54.1665	27.1374	B=21.1, R=19.9	APM-N
57.4	54.1313	27.1431		NED
57.7	54.1375	27.1283	B2=20.9, R2=19.6	USNO-B1
57.7	54.1375	27.1281		NED
60.8	54.1511	27.1238	I=18.9, R1=19.9, R2=19.9	USNO-B1
62.2	54.1400	27.1253		NED
63.8	54.1337	27.1294		NED
66.4	54.1521	27.1225		NED
66.8	54.1554	27.1228		NED
67.1	54.1688	27.1467		NED
67.8	54.1617	27.1256		NED
71.2	54.1683	27.1308		NED
71.3	54.1485	27.1604	B2=18.0, I=18.4	USNO-B1
71.5	54.1650	27.1267		NED
73.8	54.1692	27.1505	I=19.0, R2=19.9	USNO-B1
73.9	54.1633	27.1567		NED
74.0	54.1267	27.1347		NED
74.8	54.1512	27.1614		NED
75.4	54.1639	27.1568	B1=21.1, I=18.8, R2=19.8	USNO-B1
78.4	54.1550	27.1194		NED
79.1	54.1250	27.1461		NED
79.7	54.1711	27.1508	B=21.1, R=18.7	APM-N
81.4	54.1662	27.1239		NED
82.2	54.1718	27.1511	I=14.4, R2=19.4	USNO-B1
87.5	54.1694	27.1568	I=14.5, R2=19.8	USNO-B1
88.0	54.1765	27.1409	I=18.7, R1=19.9	USNO-B1
89.0	54.1350	27.1619		NED
89.5	54.1742	27.1294		NED
89.8	54.1229	27.1494		NED
90.9	54.1647	27.1616	B1=21.0, B2=20.8, I=18.8, R1=19.6, R2=19.5	USNO-B1
91.1	54.1304	27.1597		NED
91.1	54.1775	27.1422		NED
91.6	54.1750	27.1511		NED
92.5	54.1751	27.1516	B=17.6, R=15.3	APM-N
92.8	54.1775	27.1361		NED
94.3	54.1776	27.1341	B2=20.7, R1=19.5, R2=19.8	USNO-B1
95.0	54.1783	27.1453		NED
95.1	54.1782	27.1455	B=21.1, R=18.9	APM-N
95.7	54.1192	27.1395	B2=20.4, R2=19.8	USNO-B1
96.1	54.1721	27.1575		NED
97.3	54.1692	27.1206		NED
98.6	54.1412	27.1669		NED
98.9	54.1695	27.1611	B=19.7, R=20.0	APM-N
100.6	54.1218	27.1545	B1=20.9, B2=20.7	USNO-B1
101.9	54.1375	27.1669		NED
102.0	54.1374	27.1670	B1=18.8, B2=18.8, I=16.6, R1=17.0, R2=17.3	USNO-B1
102.1	54.1529	27.1125		NED
102.1	54.1454	27.1125		NED
102.8	54.1396	27.1133		NED
103.4	54.1398	27.1131	B=21.1, R=17.7	APM-N
103.7	54.1258	27.1206		NED
104.7	54.1163	27.1378		NED
104.7	54.1165	27.1380	B=20.0, R=17.9	APM-N
106.6	54.1575	27.1692	B2=20.8, I=18.2	USNO-B1
107.7	54.1733	27.1200		NED
109.7	54.1232	27.1206	I=17.3, R1=19.9	USNO-B1
110.6	54.1187	27.1553		NED
111.1	54.1588	27.1703		NED
112.8	54.1446	27.1717		NED
113.8	54.1597	27.1104	B=19.9, R=17.9	APM-N
114.4	54.1700	27.1661		NED
114.7	54.1704	27.1661	B=14.2, R=13.1	APM-N
117.5	54.1450	27.1081	B=21.1, R=19.5	APM-N
118.6	54.1696	27.1681		NED
120.9	54.1362	27.1722	B=21.1, R=19.8	APM-N
122.9	54.1796	27.1200		NED
123.2	54.1183	27.1197		NED
123.5	54.1588	27.1075		NED
124.9	54.1658	27.1719		NED
125.0	54.1660	27.1718	B=21.1, R=18.4	APM-N
126.6	54.1213	27.1156		NED
126.7	54.1650	27.1083		NED
127.1	54.1733	27.1125		NED
127.2	54.1733	27.1126	B2=20.9, R1=19.6, R2=19.9	USNO-B1
128.9	54.1100	27.1500		NED
130.3	54.1154	27.1608		NED
131.5	54.1525	27.1042		NED
132.4	54.1642	27.1747		NED
132.7	54.1642	27.1749	B2=21.4, I=18.4, R2=19.8	USNO-B1
132.7	54.1863	27.1569		NED
132.9	54.1340	27.1750	B=21.1, R=19.1	APM-N
133.2	54.1337	27.1750		NED
134.2	54.1483	27.1778		NED
134.4	54.1417	27.1775		NED
136.0	54.1742	27.1711		NED
136.0	54.1386	27.1772	B=21.1, R=20.0	APM-N
136.4	54.1720	27.1086	B2=20.5, I=18.3, R1=18.5, R2=18.9	USNO-B1
136.5	54.1721	27.1086		NED
136.7	54.1720	27.1086	B=21.1, R=18.5	APM-N
136.9	54.1846	27.1617		NED
140.0	54.1054	27.1419		NED
141.6	54.1571	27.1019		NED
142.6	54.1054	27.1478		NED
142.7	54.1446	27.1800		NED
142.8	54.1447	27.1800	B=18.8, R=17.8	APM-N
142.8	54.1446	27.1800	B1=19.5, B2=19.7, I=17.8, R1=18.3, R2=18.1	USNO-B1
143.3	54.1892	27.1583		NED
143.7	54.1079	27.1569		NED
147.1	54.1213	27.1731		NED
147.5	54.1947	27.1461	B2=20.8, I=19.1	USNO-B1
149.2	54.1521	27.1819		NED
150.1	54.1183	27.1089		NED
150.2	54.1185	27.1089	B1=18.4, B2=18.4, I=16.6, R1=16.9, R2=17.1	USNO-B1
151.8	54.1329	27.1803		NED
153.7	54.1638	27.1811		NED
154.0	54.1913	27.1203		NED
154.0	54.1638	27.1000		NED
154.4	54.1862	27.1133	B2=20.1, I=18.4	USNO-B1
154.5	54.1052	27.1227	I=18.7, R2=19.7	USNO-B1
154.9	54.1562	27.1831		NED
155.9	54.1267	27.1792		NED
156.0	54.1975	27.1372		NED
156.7	54.1264	27.1792	I=18.3, R1=19.8, R2=19.9	USNO-B1
158.5	54.1758	27.1775		NED
158.8	54.1867	27.1117		NED
159.4	54.1621	27.1833		NED
160.6	54.1833	27.1733		NED
160.9	54.1321	27.1825		NED
161.3	54.1950	27.1225		NED
161.9	54.1383	27.1844		NED
162.1	54.1021	27.1233		NED
164.2	54.1583	27.0958		NED
165.6	54.1003	27.1560	B=21.1, R=19.2	APM-N
166.0	54.1092	27.1111		NED
166.4	54.2000	27.1328		NED
166.9	54.1758	27.1803		NED
167.4	54.1649	27.1849	B2=20.9, I=18.6, R1=19.9, R2=19.7	USNO-B1
167.7	54.0988	27.1269		NED
167.8	54.1244	27.1817	B1=21.1, B2=20.8	USNO-B1
168.1	54.1829	27.1050		NED
168.2	54.0967	27.1439		NED
168.8	54.1379	27.0947		NED
170.0	54.0962	27.1364		NED
170.1	54.1938	27.1658		NED
170.5	54.1008	27.1611		NED
170.6	54.1658	27.1856		NED
171.5	54.1299	27.0961	B1=19.1, B2=18.8, I=15.2, R1=16.0, R2=16.3	USNO-B1
171.5	54.1300	27.0961		NED
171.9	54.1171	27.1792		NED
172.2	54.1172	27.1791	B2=20.3, I=18.2, R1=18.9, R2=19.3	USNO-B1
172.4	54.1172	27.1792	B=21.1, R=18.9	APM-N
172.4	54.1023	27.1643	B=21.1, R=20.0	APM-N
172.9	54.1170	27.1792	B2=20.6, R2=18.7	USNO-B1
173.2	54.1654	27.0947		NED
173.2	54.2013	27.1536		NED
173.5	54.1650	27.0947		NED
173.6	54.1229	27.0983		NED
174.0	54.2003	27.1246	B=21.1, R=20.0	APM-N
175.3	54.1869	27.1757	B1=21.0, B2=20.6, I=18.9, R1=19.4, R2=19.6	USNO-B1
176.1	54.1872	27.1758	B=21.0, R=19.2	APM-N
177.2	54.0941	27.1351	B2=20.8, I=17.3, R2=19.8	USNO-B1
177.6	54.1708	27.0953		NED
177.8	54.2042	27.1369		NED
178.2	54.2045	27.1368	B=18.8, R=17.6	APM-N
179.9	54.1908	27.1740	B1=20.9, B2=20.9	USNO-B1
182.6	54.1408	27.1908		NED
182.9	54.0938	27.1542		NED
182.9	54.1204	27.1847		NED
183.1	54.1492	27.0897		NED
183.5	54.1409	27.1910	B2=20.9, I=18.8, R2=19.9	USNO-B1
183.8	54.1446	27.1914		NED
184.7	54.1571	27.0897		NED
186.0	54.1908	27.1050		NED
186.1	54.1842	27.0994		NED
186.3	54.0917	27.1317		NED
186.3	54.1558	27.1919		NED
186.4	54.0917	27.1318	B2=20.9, I=17.2, R1=19.0, R2=19.3	USNO-B1
186.7	54.1771	27.1861		NED
188.0	54.1546	27.0886		NED
188.1	54.0913	27.1511		NED
190.4	54.2079	27.1461		NED
190.7	54.0896	27.1350		NED
191.0	54.1171	27.1856		NED
191.1	54.1612	27.0886		NED
192.3	54.1079	27.1797		NED
192.4	54.1658	27.1919		NED
192.8	54.1400	27.0875		NED
193.3	54.1971	27.1083		NED
194.3	54.0888	27.1467		NED
195.5	54.1260	27.0903	B=21.1, R=19.9	APM-N
196.8	54.1140	27.0957	B2=20.9, R1=19.8, R2=19.8	USNO-B1
196.8	54.1346	27.0875		NED
197.3	54.1133	27.1853		NED
197.5	54.1860	27.1845	I=16.1, R1=19.8	USNO-B1
197.6	54.1525	27.1953		NED
198.6	54.1558	27.0858		NED
198.8	54.1879	27.0975		NED
198.9	54.1187	27.0924	B=20.2, R=18.6	APM-N
199.1	54.2092	27.1542		NED
199.1	54.1417	27.0856		NED
199.7	54.2112	27.1378		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