Swift Trigger: 1187463;

Presumed name: GRB 230826A

BAT	05^h 32^m 02.88^s, +66° 07′ 30.0″
position:	(83.012, 66.125 ± 180″)
XRT	05^h 32^m 14.21^s, +66° 07′ 30.0″
position:	(83.0592, 66.1250 ± 5.3″)
UVOT	No position available.
Galactic N_HI:	8.53×10²⁰ cm^-2
Galactic E(B-V):	0.242 mag

Best RA:	05^h 32^m 14.21^s	= 83.0592 d
Best Dec:	+66° 07′ 30.0″	= 66.1250 d

Gal Lat:	17.15
Gal Long:	146.42

Sun angle:	73.22°, 4.8 hr West

Galaxies within 200 of XRT position

	RA*	Dec*	Redshift		Catalogue
9.1	83.0654	66.1250			NED
25.7	83.0725	66.1297			NED
27.7	83.0525	66.1178			NED
39.1	83.0529	66.1144			NED
41.6	83.0875	66.1269			NED
41.9	83.0671	66.1139			NED
48.2	83.0354	66.1344			NED
48.4	83.0304	66.1183			NED
50.6	83.0821	66.1144			NED
56.5	83.0212	66.1286			NED
58.7	83.0908	66.1149		B1=20.3, B2=20.5, I=18.9, R2=19.8	USNO-B1
59.3	83.0546	66.1086			NED
59.6	83.0763	66.1400			NED
60.1	83.0737	66.1094			NED
60.8	83.1000	66.1217			NED
62.6	83.0904	66.1369			NED
63.5	83.0842	66.1106			NED
64.1	83.0438	66.1417			NED
66.4	83.0629	66.1433			NED
69.9	83.0150	66.1325			NED
74.0	83.1004	66.1128			NED
74.8	83.1029	66.1358			NED
76.8	83.0175	66.1119			NED
77.4	83.1000	66.1386			NED
79.6	83.0067	66.1186			NED
81.5	83.0805	66.1041		B1=20.9, B2=19.4, I=18.7, R1=19.3, R2=19.4	USNO-B1
82.6	83.0804	66.1036			NED
83.5	83.0888	66.1051		B1=17.4, B2=17.4, I=15.6, R1=16.1, R2=16.0	USNO-B1
83.8	83.0888	66.1050			NED
83.8	83.1125	66.1161			NED
84.1	83.0662	66.1019			NED
84.6	83.0867	66.1458			NED
85.3	83.0496	66.1483			NED
85.4	83.0046	66.1339			NED
85.9	83.0204	66.1431			NED
87.4	83.1175	66.1303			NED
88.6	83.0451	66.1011		B2=20.2, I=15.7, R2=19.7	USNO-B1
89.3	83.0467	66.1008			NED
90.1	83.0387	66.1486			NED
90.3	83.1208	66.1269			NED
93.3	83.1229	66.1277		B2=20.9, I=18.7	USNO-B1
94.0	83.0337	66.1011			NED
94.5	83.1092	66.1083			NED
94.7	82.9982	66.1159		B2=20.8, R2=19.5	USNO-B1
94.9	83.1125	66.1400			NED
95.7	83.0454	66.1511			NED
96.7	83.0225	66.1475			NED
99.3	83.0938	66.1489			NED
101.9	83.1079	66.1047		R1=19.6, R2=20.3	USNO-B1
102.2	83.1027	66.1027		B1=20.8, B2=19.8, I=16.5, R1=17.7, R2=17.4	USNO-B1
102.3	83.1020	66.1025		B1=21.1, I=16.6	USNO-B1
102.4	83.1025	66.1025			NED
102.5	83.1292	66.1236			NED
102.6	83.1029	66.1028			NED
103.1	83.0067	66.1058			NED
103.3	83.1287	66.1306			NED
105.5	82.9908	66.1350			NED
107.3	83.1142	66.1447			NED
107.3	82.9896	66.1153			NED
107.6	83.0529	66.1547			NED
108.5	83.0375	66.1539			NED
110.0	83.1292	66.1136			NED
110.5	83.1018	66.0996		B1=20.8, I=18.1, R2=19.4	USNO-B1
110.6	83.1196	66.1064			NED
111.4	83.1021	66.0994			NED
112.0	82.9904	66.1111			NED
112.3	82.9900	66.1111			NED
114.5	83.1045	66.0990		B1=20.7, I=17.9	USNO-B1
115.1	83.0012	66.1033			NED
116.3	83.0580	66.0927		B2=19.6, I=18.2, R2=19.7	USNO-B1
118.3	83.1238	66.1447			NED
119.2	83.0583	66.0919			NED
119.4	83.1309	66.1090		B2=20.6, I=17.4, R1=18.9, R2=18.8	USNO-B1
119.8	83.1308	66.1089			NED
119.8	83.0233	66.0950			NED
120.0	82.9813	66.1142			NED
120.2	82.9788	66.1325			NED
120.3	82.9788	66.1328			NED
120.3	82.9808	66.1142			NED
120.5	82.9954	66.1464			NED
120.8	83.1025	66.1536			NED
121.4	82.9762	66.1283			NED
124.9	83.0062	66.0978			NED
125.1	82.9733	66.1261			NED
125.5	83.1425	66.1342			NED
126.1	83.0713	66.1597		B1=21.1, B2=20.9, I=18.5, R1=19.5, R2=20.0	USNO-B1
126.3	83.0275	66.0922			NED
126.9	83.0296	66.1581			NED
127.7	83.1312	66.1453			NED
128.8	82.9975	66.1506			NED
129.2	82.9883	66.1033			NED
129.8	83.1479	66.1275			NED
130.0	83.0683	66.1608			NED
132.2	83.0346	66.1603			NED
132.6	83.1500	66.1231			NED
133.0	83.1200	66.0975			NED
133.6	83.1250	66.0992			NED
133.8	83.1262	66.0996		B2=18.1, I=15.3, R2=13.9	USNO-B1
134.7	83.0775	66.0883			NED
135.0	82.9676	66.1194		B1=21.1, I=18.8	USNO-B1
135.8	83.1279	66.1503			NED
136.2	82.9667	66.1196		B1=21.1, B2=20.9	USNO-B1
136.6	83.0913	66.0894			NED
136.6	82.9663	66.1194			NED
136.9	83.0010	66.0952		B1=20.9, B2=21.1, R2=19.4	USNO-B1
137.2	83.0012	66.0950			NED
137.8	83.1439	66.1080		I=18.6, R2=20.3	USNO-B1
137.8	83.1437	66.1081			NED
137.9	82.9854	66.1492			NED
139.4	83.1461	66.1412		B2=17.3, I=18.0, R2=15.6	USNO-B1
139.7	83.1533	66.1176		B2=21.0, I=18.2, R2=18.7	USNO-B1
140.3	83.0150	66.0903			NED
140.5	83.1471	66.1411			NED
141.9	83.0242	66.1617			NED
142.8	82.9967	66.1556			NED
143.3	83.1367	66.1003			NED
143.9	82.9750	66.1042			NED
144.1	82.9961	66.1558		B2=17.9, I=16.4, R1=19.9	USNO-B1
144.2	82.9746	66.1042			NED
144.2	83.1559	66.1165		B1=21.0, B2=20.9, I=17.4, R1=18.4, R2=18.4	USNO-B1
144.7	83.1562	66.1164			NED
144.9	83.1563	66.1163		B1=21.1, B2=20.6	USNO-B1
146.1	82.9592	66.1218		I=18.3, R2=20.2	USNO-B1
146.3	82.9592	66.1219			NED
146.5	83.1308	66.1533			NED
146.8	82.9587	66.1219		B2=20.5, I=18.3, R2=20.2	USNO-B1
147.1	83.0779	66.0847			NED
147.4	83.0700	66.0842			NED
148.1	83.0950	66.1636			NED
149.8	83.0233	66.0861			NED
150.2	83.0625	66.0833			NED
150.2	83.0931	66.1644		B2=21.0, I=18.5, R2=18.8	USNO-B1
150.9	82.9908	66.0936			NED
151.6	83.1350	66.0961			NED
152.2	83.0425	66.1667			NED
152.6	82.9700	66.1475			NED
152.8	82.9703	66.1475		B2=21.0, I=18.6, R1=19.4, R2=19.6	USNO-B1
153.2	83.1614	66.1351		B2=21.6, I=18.9	USNO-B1
155.3	83.0475	66.0822			NED
155.6	83.1650	66.1197			NED
156.2	83.1162	66.0883			NED
156.5	83.1625	66.1131			NED
156.8	83.0442	66.1681		R1=19.7, R2=20.5	USNO-B1
157.1	83.1092	66.0864			NED
157.3	82.9646	66.1039			NED
157.6	82.9546	66.1364			NED
159.5	83.0387	66.0814			NED
160.0	83.1054	66.1653			NED
161.0	83.1187	66.1625			NED
162.7	82.9754	66.0953			NED
163.0	82.9483	66.1319			NED
163.4	83.1696	66.1328			NED
163.8	83.0175	66.1672			NED
165.1	83.1725	66.1269			NED
165.9	83.1546	66.0997			NED
166.1	82.9792	66.1578			NED
168.5	83.1575	66.1497			NED
168.8	82.9858	66.0889			NED
169.2	83.1671	66.1423		B1=21.1, I=18.9	USNO-B1
169.3	83.1658	66.1067			NED
169.3	83.0688	66.0781			NED
169.4	82.9646	66.0978			NED
169.9	83.1108	66.1672			NED
170.4	83.0533	66.1722			NED
171.5	83.1767	66.1242			NED
172.6	83.1125	66.0822			NED
172.9	82.9421	66.1333			NED
173.5	83.1312	66.1633			NED
173.8	83.1271	66.0853			NED
174.1	83.0683	66.1733			NED
174.1	83.1654	66.1028		R1=20.0, R2=20.1	USNO-B1
174.6	83.1425	66.0903			NED
174.8	83.1479	66.0925			NED
175.0	82.9701	66.1576		B1=20.2, B2=20.6, I=18.7, R1=19.5, R2=19.3	USNO-B1
175.0	83.1523	66.1558		B2=21.0, R1=19.5, R2=20.2	USNO-B1
175.6	82.9704	66.1581			NED
176.4	82.9697	66.1580		B2=19.8, R1=19.8	USNO-B1
177.4	83.1633	66.0997			NED
177.5	82.9383	66.1189			NED
177.8	83.0229	66.0778			NED
178.7	82.9367	66.1269			NED
178.8	83.1817	66.1217			NED
178.8	82.9366	66.1271		B1=17.4, B2=16.3, I=14.2, R1=15.1, R2=15.0	USNO-B1
179.1	83.1467	66.1600			NED
179.5	83.0017	66.0808			NED
179.5	83.0190	66.0779		B1=21.0, B2=20.9, I=18.4, R1=19.7, R2=19.3	USNO-B1
179.6	82.9712	66.0900			NED
180.1	82.9550	66.0981			NED
180.7	83.0625	66.1753			NED
181.0	83.1625	66.1528			NED
182.8	83.1287	66.0828			NED
183.0	83.0479	66.1756			NED
183.4	82.9404	66.1419			NED
183.9	83.0746	66.0742			NED
184.9	83.1342	66.0836			NED
185.9	83.1829	66.1125			NED
186.0	83.0612	66.0733			NED
186.3	83.1750	66.1031		B2=20.5, I=17.7, R2=19.4	USNO-B1
187.3	83.0271	66.0747			NED
187.6	82.9317	66.1172			NED
187.7	82.9342	66.1125			NED
188.9	82.9729	66.0858			NED
190.3	82.9346	66.1094			NED
190.6	82.9821	66.1678			NED
190.7	82.9284	66.1231		B1=20.5, B2=20.2, R1=19.7, R2=19.4	USNO-B1
190.7	83.1760	66.1011		I=18.1, R2=19.8	USNO-B1
190.8	83.1782	66.1029		h=12.8, j=13.6, k=12.4	2MASS
191.2	83.1783	66.1028	0.080716		NED
191.3	83.0712	66.0722			NED
191.5	82.9617	66.1606			NED
191.7	83.1650	66.0933			NED
192.0	83.0004	66.0772			NED
192.4	82.9437	66.1508			NED
193.0	82.9412	66.1006			NED
193.3	83.1478	66.0851		B2=20.9, R1=20.0	USNO-B1
193.4	82.9483	66.1544			NED
193.6	82.9482	66.1546		B1=18.4, B2=17.7, I=16.3, R1=16.9, R2=17.1	USNO-B1
193.9	83.0429	66.1783			NED
194.2	83.1821	66.1042		B2=20.5, I=17.8, R2=19.1	USNO-B1
194.4	83.1587	66.0892			NED
194.8	83.1242	66.1722			NED
194.8	83.1917	66.1181			NED
194.8	83.1408	66.0822			NED
195.7	82.9492	66.0936			NED
196.4	83.0517	66.0706			NED
196.6	82.9279	66.1378			NED
197.8	83.1879	66.1078			NED
197.9	83.1021	66.1772			NED
198.4	83.1704	66.1567			NED
198.5	83.0888	66.0711			NED
198.9	82.9838	66.1711			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