Swift Trigger: 1299088;

Presumed name: GRB 250327A

BAT	16^h 32^m 47.28^s, +61° 35′ 42.0″
position:	(248.197, +61.595 ± 180″)
XRT	No position available.
UVOT	No position available.
Galactic N_HI:	2.28×10²⁰ cm^-2
Galactic E(B-V):	0.036 mag

Best RA:	16^h 32^m 47.28^s	= 248.197 d
Best Dec:	+61° 35′ 42.0″	= +61.595 d

Gal Lat:	39.93
Gal Long:	92.25

Sun angle:	100.48°, 7.9 hr West

Galaxies within 200 of BAT position

	RA*	Dec*	Redshift		Catalogue
5.5	248.2000	61.5944			NED
11.8	248.1946	61.5919			NED
13.8	248.1892	61.5939			NED
17.1	248.1873	61.5939		B1=17.7, B2=15.7, I=14.5, R1=15.9, R2=14.7	USNO-B1
20.0	248.1854	61.5942		B1=14.6, B2=13.6, I=12.5, R2=12.3	USNO-B1
21.1	248.1846	61.5942	0.071658		NED
21.2	248.1847	61.5944		h=12.6, j=13.3, k=12.0	2MASS
23.0	248.1842	61.5970		B1=19.7, B2=19.2, R1=19.5	USNO-B1
27.5	248.2088	61.6000			NED
27.8	248.2089	61.6002		B=16.3, R=14.7	APM-N
30.9	248.1800	61.5922			NED
32.3	248.1971	61.6039			NED
33.4	248.2063	61.5869			NED
33.8	248.1808	61.6003			NED
34.5	248.1812	61.6009		B1=20.3, B2=20.6, I=18.8, R2=19.9	USNO-B1
35.2	248.1806	61.6009		B=21.1, R=19.0	APM-N
35.3	248.1802	61.6006		B=21.9, R=19.3	APM-N
35.3	248.1767	61.5961			NED
35.5	248.1809	61.6012		R1=19.7, R2=20.6	USNO-B1
37.1	248.1892	61.6047			NED
37.9	248.1933	61.5847			NED
44.9	248.1871	61.5833			NED
45.0	248.1874	61.5834		B=21.2, R=19.8	APM-N
45.2	248.1788	61.6042			NED
50.7	248.2208	61.6033			NED
52.8	248.2208	61.5858			NED
55.6	248.2117	61.5812		B=18.9, R=17.2	APM-N
55.6	248.2117	61.5811			NED
55.6	248.2115	61.5812		B=19.3, R=17.7	APM-N
56.1	248.1879	61.6100			NED
58.4	248.2107	61.5801		B2=20.9, R1=19.4	USNO-B1
58.4	248.2217	61.6064			NED
60.5	248.1617	61.5942			NED
61.2	248.1613	61.5951		B1=20.3, R1=17.7	USNO-B1
61.3	248.1642	61.5881			NED
62.5	248.2292	61.6033			NED
63.3	248.1600	61.5958			NED
63.3	248.2025	61.6125			NED
63.6	248.1860	61.6119		B=21.6, R=19.3	APM-N
63.8	248.1596	61.5950			NED
64.6	248.1593	61.5944		B=15.7, R=13.7	APM-N
65.8	248.2296	61.5853			NED
66.2	248.1771	61.6108			NED
67.4	248.1829	61.6125		B1=20.7, R1=20.2	USNO-B1
68.2	248.1572	61.5941		h=0.0, j=15.6, k=14.0	2MASS
68.3	248.1571	61.5942			NED
68.6	248.2242	61.5811			NED
69.0	248.1567	61.5940		B1=17.5, B2=15.9, R1=16.4	USNO-B1
71.9	248.1695	61.6101		B=20.3, R=17.6	APM-N
71.9	248.1696	61.6103			NED
71.9	248.2117	61.6136			NED
73.1	248.1544	61.5963		B1=20.9, R2=19.1	USNO-B1
74.4	248.1536	61.5960		B1=21.0, B2=20.9, R2=19.6	USNO-B1
75.7	248.2238	61.6117			NED
75.7	248.1554	61.6022			NED
76.1	248.1527	61.5964		B2=20.9, R2=20.5	USNO-B1
78.8	248.1867	61.6164			NED
79.5	248.2183	61.5756			NED
81.9	248.2425	61.6019			NED
82.2	248.1730	61.5752		B1=20.9, B2=20.8, R1=20.1, R2=20.4	USNO-B1
82.5	248.1729	61.5753			NED
82.7	248.1488	61.5964			NED
83.0	248.1808	61.6167			NED
84.3	248.1933	61.5717			NED
84.4	248.2108	61.5725			NED
85.1	248.2417	61.5850			NED
87.2	248.2296	61.5764			NED
87.7	248.2429	61.6058			NED
88.2	248.1608	61.6125			NED
89.0	248.1529	61.5819			NED
91.6	248.2392	61.5794		B1=19.9, B2=20.8	USNO-B1
93.1	248.2013	61.5692			NED
95.0	248.2415	61.5792		B=19.3, R=16.4	APM-N
95.1	248.1717	61.6186			NED
95.3	248.2288	61.5733			NED
95.7	248.2417	61.5792			NED
96.4	248.2438	61.5801		B2=21.0, I=16.9, R1=19.6, R2=19.9	USNO-B1
96.9	248.2447	61.5805		B1=19.7, B2=21.2, R1=17.5	USNO-B1
97.2	248.1551	61.6132		B2=21.0, R2=20.8	USNO-B1
97.9	248.2250	61.6186			NED
98.8	248.2129	61.6214			NED
99.4	248.2542	61.6000			NED
100.6	248.2483	61.5814			NED
100.7	248.1450	61.5820		B2=20.9, R2=20.4	USNO-B1
100.8	248.2485	61.5814		B2=21.2, I=17.8, R1=19.6, R2=19.6	USNO-B1
101.6	248.1446	61.5819			NED
102.4	248.1904	61.6233			NED
103.1	248.2533	61.6050			NED
103.7	248.1798	61.5674		B=21.6, R=20.0	APM-N
104.7	248.2449	61.5769		B1=20.9, B2=20.9	USNO-B1
105.7	248.1475	61.5775			NED
107.0	248.2400	61.5736			NED
107.4	248.2105	61.5659		B1=20.9, B2=21.0, R2=20.4	USNO-B1
108.0	248.2171	61.6234		B=21.2, R=18.6	APM-N
108.1	248.2413	61.6164		B1=21.0, B2=21.0	USNO-B1
108.1	248.2254	61.5682		B=20.5, R=18.0	APM-N
108.1	248.2171	61.6235		B1=20.4, R1=19.2	USNO-B1
108.1	248.2254	61.5683			NED
108.3	248.2172	61.6235		B=20.9, R=18.8	APM-N
108.4	248.2258	61.5682		B=20.8, R=17.3	APM-N
108.6	248.2171	61.6236			NED
108.6	248.2108	61.5655		B1=20.9, R2=20.2	USNO-B1
108.8	248.2406	61.6170		B1=20.8, B2=20.8, R2=20.7	USNO-B1
109.4	248.1346	61.6014			NED
110.6	248.1637	61.6213		B1=20.4, R2=20.5	USNO-B1
112.2	248.1402	61.5795		B1=18.2, B2=17.9, I=15.8, R1=16.7, R2=16.9	USNO-B1
112.4	248.1401	61.5794		B=17.6, R=16.0	APM-N
112.4	248.1635	61.6219		B=19.8, R=17.0	APM-N
112.4	248.1633	61.6218		B=19.7, R=17.6	APM-N
112.4	248.1329	61.5878			NED
112.5	248.1400	61.5794			NED
112.5	248.1633	61.6219			NED
112.5	248.1401	61.5794		B=18.0, R=16.3	APM-N
114.4	248.2500	61.6142			NED
115.1	248.1967	61.6269			NED
115.6	248.1312	61.5879		B2=20.7, R2=20.8	USNO-B1
115.9	248.2300	61.5669			NED
116.0	248.1838	61.6266		B1=20.5, I=19.0, R2=20.5	USNO-B1
116.0	248.1294	61.5965		B=20.2, R=17.1	APM-N
116.1	248.2306	61.5670		B1=21.0, B2=20.7, I=17.4, R1=19.6, R2=19.6	USNO-B1
116.3	248.1292	61.5967			NED
116.5	248.2621	61.6044			NED
116.7	248.1838	61.6267			NED
116.9	248.2092	61.5631			NED
117.1	248.2642	61.6008			NED
117.2	248.1917	61.5625			NED
117.8	248.2324	61.5669		B1=20.5, R1=20.2	USNO-B1
118.7	248.2475	61.6176		B1=21.0, B2=20.5	USNO-B1
119.3	248.2058	61.6278			NED
120.4	248.2392	61.5683			NED
121.5	248.1575	61.5669			NED
121.7	248.1404	61.6154		B1=20.8, B2=20.5, I=19.1, R1=20.3, R2=19.6	USNO-B1
122.0	248.1400	61.6153			NED
122.3	248.1399	61.6154		B1=20.4, B2=19.9, R1=20.0	USNO-B1
122.5	248.1397	61.6154		B=21.4, R=19.5	APM-N
122.9	248.1308	61.5819			NED
123.3	248.2242	61.5633			NED
123.8	248.1650	61.5642			NED
124.0	248.2692	61.5931			NED
124.7	248.2179	61.6281			NED
125.9	248.2488	61.5703			NED
126.8	248.2675	61.5844			NED
132.1	248.1221	61.5864			NED
132.1	248.2417	61.6250			NED
132.3	248.1217	61.5867		B2=20.8, I=18.6, R1=19.8, R2=20.2	USNO-B1
132.6	248.1649	61.6285		B=21.9, R=19.5	APM-N
132.6	248.1216	61.5867		B=22.2, R=19.8	APM-N
133.1	248.2700	61.5822			NED
133.3	248.2596	61.6169			NED
133.3	248.1579	61.6269			NED
133.6	248.1646	61.6289			NED
133.7	248.1571	61.5631			NED
133.8	248.1197	61.6005		B=18.1, R=15.6	APM-N
134.3	248.1196	61.6006			NED
134.6	248.2438	61.5650			NED
134.7	248.1389	61.5698		R1=19.8, R2=20.1	USNO-B1
134.8	248.2692	61.5803			NED
134.8	248.1392	61.5697			NED
134.9	248.2696	61.5805		B=22.2, R=19.3	APM-N
135.3	248.1258	61.5786			NED
136.2	248.1254	61.6117			NED
136.5	248.2388	61.5628			NED
136.5	248.1398	61.6214		B2=21.5, R2=20.6	USNO-B1
137.5	248.1167	61.5969			NED
139.7	248.2679	61.6142			NED
140.2	248.2682	61.6142		B1=20.5, B2=21.0, I=15.8, R1=19.0, R2=19.2	USNO-B1
140.4	248.2684	61.6141		B=22.2, R=18.1	APM-N
140.5	248.2196	61.6325			NED
141.5	248.2121	61.6336			NED
141.6	248.1650	61.5586			NED
141.6	248.1285	61.6171		B=21.9, R=17.9	APM-N
142.0	248.2763	61.5833			NED
142.1	248.2296	61.6314			NED
142.3	248.1283	61.6172			NED
142.9	248.2233	61.5575			NED
143.0	248.1429	61.5647			NED
143.3	248.2804	61.5933			NED
143.9	248.2375	61.5600			NED
144.9	248.2408	61.6294			NED
147.2	248.1950	61.6358			NED
147.6	248.1108	61.5950			NED
147.9	248.1318	61.6220		B=17.8, R=14.9	APM-N
148.0	248.1320	61.6221		h=14.0, j=14.7, k=13.6	2MASS
148.1	248.2475	61.5617			NED
148.2	248.1317	61.6219	0.098561		NED
148.3	248.1316	61.6220		B=18.1, R=15.6	APM-N
148.3	248.1458	61.6283			NED
150.1	248.2554	61.5639			NED
150.9	248.2738	61.5744			NED
151.1	248.2788	61.6106			NED
151.7	248.2221	61.6353			NED
152.1	248.2842	61.6033			NED
152.6	248.2050	61.5528			NED
154.3	248.2850	61.5861			NED
155.4	248.1076	61.5875		B1=21.0, B2=20.6	USNO-B1
155.8	248.2225	61.5533			NED
156.1	248.2637	61.6244			NED
156.3	248.1547	61.6335		B1=20.5, R1=18.8	USNO-B1
156.5	248.1531	61.6331		B1=19.3, B2=18.9, I=16.6	USNO-B1
156.5	248.1529	61.6331			NED
156.5	248.2675	61.6228			NED
156.6	248.1527	61.6331		B=19.9, R=17.3	APM-N
156.8	248.2671	61.6230		B1=20.5, B2=21.0, R1=19.0	USNO-B1
156.8	248.2846	61.5828			NED
156.8	248.2675	61.6228		B=22.2, R=18.8	APM-N
156.8	248.1523	61.6330		B=19.4, R=17.1	APM-N
158.3	248.1504	61.6330		B1=20.5, B2=20.7, R1=18.1	USNO-B1
158.5	248.1092	61.6092			NED
158.6	248.1604	61.5544			NED
159.1	248.1154	61.5736			NED
160.3	248.2413	61.5558			NED
161.1	248.2833	61.6128			NED
161.6	248.2043	61.5502		B=20.2, R=19.2	APM-N
161.8	248.2046	61.5502		B=20.1, R=18.6	APM-N
161.9	248.1333	61.6283			NED
163.3	248.2621	61.5619			NED
163.6	248.1075	61.5792			NED
164.1	248.1771	61.6397			NED
165.3	248.1400	61.6322			NED
165.5	248.1397	61.6320		B1=21.0, I=18.6, R2=20.6	USNO-B1
165.8	248.2837	61.5744			NED
166.2	248.1410	61.6327		B2=20.9, I=18.1, R1=20.3	USNO-B1
166.8	248.1795	61.5494		B=21.9, R=20.0	APM-N
167.2	248.1963	61.6414			NED
167.3	248.2800	61.6194			NED
167.4	248.2900	61.6094			NED
167.5	248.2171	61.5494			NED
168.5	248.2833	61.6175			NED
168.5	248.1425	61.5561			NED
168.5	248.0987	61.5983			NED
168.7	248.1129	61.6194			NED
168.9	248.1354	61.5583			NED
169.8	248.1872	61.5481		B2=20.6, R1=19.8	USNO-B1
170.7	248.1871	61.5478		B=22.2, R=17.9	APM-N
171.5	248.1874	61.5476		B1=20.5, I=17.0, R1=19.0, R2=19.1	USNO-B1
171.8	248.1871	61.5475			NED
172.0	248.1138	61.5683			NED
172.4	248.2975	61.5936			NED
172.4	248.1583	61.6392			NED
173.1	248.1582	61.6394		B1=20.5, B2=20.9	USNO-B1
174.5	248.2912	61.5767			NED
176.1	248.2786	61.6248		B=20.8, R=19.9	APM-N
176.1	248.2842	61.5692			NED
176.8	248.1983	61.5458			NED
176.8	248.2738	61.6281			NED
176.9	248.0979	61.6089			NED
177.1	248.1596	61.5492			NED
177.8	248.1325	61.6339			NED
177.8	248.2662	61.6319		B2=20.7, R1=18.6	USNO-B1
178.1	248.2995	61.6033		B1=21.0, R1=20.3	USNO-B1
178.2	248.2682	61.6311		B=20.0, R=18.8	APM-N
178.6	248.1721	61.5469			NED
178.9	248.0925	61.5936			NED
179.2	248.0927	61.5912		B1=21.0, B2=21.3	USNO-B1
179.2	248.2684	61.6314		B=20.1, R=18.3	APM-N
179.3	248.2686	61.6314		B1=19.9, B2=18.4, I=17.9, R1=19.0, R2=18.2	USNO-B1
179.3	248.2687	61.6314			NED
179.6	248.2967	61.5797			NED
179.6	248.2512	61.6378			NED
179.7	248.2813	61.5653			NED
179.7	248.0971	61.5797		B1=20.8, B2=20.9, I=18.9, R1=19.5, R2=19.5	USNO-B1
179.8	248.0971	61.5797			NED
180.1	248.2325	61.6419			NED
180.2	248.0968	61.5798		B1=20.6, B2=20.9	USNO-B1
180.4	248.3004	61.6042			NED
180.7	248.2883	61.6200			NED
181.0	248.1817	61.6447			NED
182.2	248.2962	61.6133			NED
183.4	248.3025	61.5864			NED
183.8	248.1146	61.6278			NED
184.1	248.1704	61.6444			NED
184.3	248.0904	61.6022			NED
184.7	248.1442	61.5503			NED
186.0	248.2355	61.5467		B1=20.5, R1=20.3	USNO-B1
186.0	248.2855	61.6250		B=16.7, R=15.5	APM-N
186.1	248.1167	61.5603			NED
186.2	248.2854	61.6253			NED
186.6	248.2857	61.6251		B=16.6, R=14.9	APM-N
187.0	248.0904	61.5839			NED
188.9	248.0871	61.5992			NED
188.9	248.3067	61.5908			NED
189.3	248.3072	61.5910		B1=20.8, B2=20.9, R1=19.7, R2=19.8	USNO-B1
190.1	248.1825	61.5425			NED
190.3	248.2154	61.6472			NED
190.3	248.0954	61.5733			NED
190.7	248.2404	61.6439			NED
191.4	248.0983	61.5700			NED
191.6	248.2088	61.5419			NED
191.6	248.3087	61.5978			NED
192.0	248.2091	61.5420		B1=20.5, B2=19.9, I=16.6, R1=18.1, R2=18.0	USNO-B1
192.1	248.2092	61.5419			NED
193.0	248.1375	61.6406			NED
193.1	248.2413	61.5456			NED
193.4	248.1372	61.6406		B=22.2, R=19.7	APM-N
194.1	248.1368	61.6407		B2=20.9, R1=19.8, R2=20.1	USNO-B1
194.5	248.1813	61.6485		B2=20.6, I=19.1, R1=20.3, R2=20.5	USNO-B1
194.7	248.2790	61.5576		B=17.3, R=16.1	APM-N
194.8	248.2792	61.5576		B=17.3, R=15.8	APM-N
194.9	248.2788	61.5575			NED
195.1	248.1221	61.6358			NED
195.1	248.1042	61.6267			NED
196.3	248.1146	61.5569			NED
196.8	248.1808	61.6492			NED
197.0	248.2830	61.5587		B1=20.8, R1=19.9	USNO-B1
197.5	248.0820	61.5909		B=18.9, R=17.8	APM-N
197.5	248.1479	61.5453			NED
197.9	248.0960	61.6217		B2=20.9, R1=19.6	USNO-B1
198.0	248.3113	61.5872			NED
198.3	248.0954	61.6217			NED
198.8	248.3104	61.5839			NED
199.6	248.2983	61.5675			NED
199.7	248.1509	61.5441		B=22.2, R=19.6	APM-N
199.7	248.1246	61.6386			NED
199.7	248.1542	61.5433			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