Swift Trigger: 1400467;

Presumed name: GRB 251001B

BAT	02^h 50^m 39.60^s, -23° 01′ 12.0″
position:	(42.665, -23.020 ± 180″)
XRT	02^h 50^m 36.24^s, -23° 01′ 12.5″
position:	(42.65098, -23.02014 ± 1.9″)
UVOT	No position available.
Galactic N_HI:	2.44×10²⁰ cm^-2
Galactic E(B-V):	0.027 mag

Best RA:	02^h 50^m 36.24^s	= 42.65098 d
Best Dec:	-23° 01′ 12.5″	= -23.02014 d

Gal Lat:	-62.77
Gal Long:	210.91

Sun angle:	136.88°, 9.7 hr West

Galaxies within 200 of XRT position

	RA*	Dec*		Catalogue
24.4	42.6579	-23.0183		NED
25.8	42.6486	-23.0270	B1=20.1, B2=20.1, R2=20.4	USNO-B1
26.8	42.6538	-23.0269		NED
29.4	42.6504	-23.0283		NED
31.3	42.6517	-23.0114		NED
36.2	42.6538	-23.0297		NED
38.2	42.6417	-23.0267		NED
38.4	42.6554	-23.0103		NED
39.4	42.6392	-23.0197		NED
41.4	42.6633	-23.0197		NED
41.6	42.6471	-23.0092		NED
48.4	42.6371	-23.0156		NED
49.0	42.6600	-23.0308		NED
49.1	42.6633	-23.0128		NED
49.8	42.6621	-23.0108		NED
52.3	42.6496	-23.0347		NED
52.7	42.6425	-23.0325		NED
53.9	42.6488	-23.0053		NED
54.2	42.6525	-23.0053		NED
54.8	42.6667	-23.0156		NED
54.9	42.6346	-23.0217		NED
55.2	42.6675	-23.0206		NED
56.7	42.6354	-23.0131		NED
57.4	42.6588	-23.0344		NED
58.5	42.6404	-23.0072	Mag=19.3	NED
59.8	42.6579	-23.0047		NED
66.0	42.6575	-23.0375		NED
68.6	42.6696	-23.0119	Mag=19.3	NED
68.9	42.6683	-23.0308		NED
69.5	42.6717	-23.0203	Mag=19.61	NED
71.6	42.6371	-23.0353		NED
72.5	42.6292	-23.0236		NED
73.6	42.6642	-23.0367		NED
74.2	42.6400	-23.0022		NED
75.5	42.6375	-23.0033		NED
77.1	42.6392	-23.0386		NED
78.8	42.6271	-23.0211		NED
79.4	42.6496	-22.9981		NED
80.3	42.6317	-23.0067		NED
85.9	42.6258	-23.0258		NED
86.8	42.6275	-23.0306		NED
87.6	42.6246	-23.0175		NED
87.7	42.6246	-23.0200		NED
90.0	42.6500	-22.9953		NED
91.1	42.6246	-23.0131	Mag=19.1	NED
92.0	42.6788	-23.0225		NED
95.0	42.6792	-23.0169		NED
96.7	42.6217	-23.0211		NED
97.1	42.6800	-23.0211		NED
97.4	42.6621	-23.0450	Mag=19.20	NED
98.4	42.6717	-23.0397		NED
98.5	42.6271	-23.0036		NED
99.8	42.6802	-23.0270	B2=19.7, R2=20.1	USNO-B1
101.0	42.6242	-23.0067		NED
102.1	42.6412	-23.0472		NED
102.7	42.6371	-23.0458		NED
103.8	42.6300	-23.0417		NED
104.2	42.6204	-23.0275		NED
104.5	42.6488	-23.0492		NED
105.1	42.6583	-22.9917		NED
105.6	42.6821	-23.0147	Mag=19.4	NED
106.0	42.6813	-23.0106		NED
107.6	42.6204	-23.0094		NED
108.0	42.6287	-22.9981		NED
108.4	42.6238	-23.0369		NED
109.0	42.6354	-22.9933		NED
109.1	42.6325	-22.9950		NED
109.9	42.6204	-23.0317	Mag=18.83	NED
110.3	42.6833	-23.0125		NED
110.8	42.6267	-23.0411		NED
114.4	42.6855	-23.0212	B2=20.2, I=18.3, R1=18.8, R2=19.4	USNO-B1
115.3	42.6858	-23.0211		NED
116.7	42.6392	-22.9897		NED
118.8	42.6860	-23.0273	B2=19.0, R2=19.5	USNO-B1
120.4	42.6771	-22.9972	Mag=20.25	NED
122.9	42.6679	-23.0506		NED
123.4	42.6800	-23.0417		NED
123.8	42.6529	-23.0544		NED
124.9	42.6879	-23.0273	B2=18.4, R2=19.2	USNO-B1
124.9	42.6842	-23.0042		NED
125.0	42.6867	-23.0317	Mag=19.5	NED
126.2	42.6775	-23.0450		NED
126.5	42.6246	-22.9944		NED
126.6	42.6129	-23.0175		NED
126.9	42.6337	-22.9886		NED
127.3	42.6442	-22.9853		NED
129.0	42.6662	-23.0531		NED
129.8	42.6125	-23.0267		NED
130.0	42.6292	-23.0503		NED
131.2	42.6233	-23.0461	Mag=19.6	NED
132.5	42.6171	-23.0397		NED
134.3	42.6479	-23.0572		NED
134.5	42.6146	-23.0033		NED
135.8	42.6104	-23.0133		NED
136.3	42.6650	-23.0558		NED
138.5	42.6400	-22.9831		NED
138.5	42.6675	-22.9847	Mag=19.98	NED
140.2	42.6896	-23.0364		NED
140.2	42.6817	-22.9936		NED
140.2	42.6733	-22.9869		NED
140.8	42.6171	-23.0439		NED
141.7	42.6846	-22.9961		NED
141.7	42.6108	-23.0061		NED
143.3	42.6696	-23.0561		NED
143.6	42.6267	-22.9872		NED
144.2	42.6921	-23.0333		NED
144.5	42.6600	-23.0594		NED
145.2	42.6287	-22.9853		NED
148.0	42.6108	-23.0383		NED
148.2	42.6813	-23.0503		NED
148.7	42.6063	-23.0228		NED
149.2	42.6508	-23.0617		NED
151.2	42.6083	-23.0047		NED
151.7	42.6396	-23.0609	B2=19.6, I=18.8	USNO-B1
152.0	42.6337	-23.0592		NED
152.0	42.6179	-22.9906		NED
152.2	42.6704	-22.9817		NED
152.3	42.6396	-23.0611	Mag=19.2	NED
152.9	42.6783	-22.9858		NED
153.9	42.6054	-23.0114		NED
154.3	42.6325	-22.9806		NED
155.9	42.6546	-23.0633		NED
156.2	42.6846	-22.9897		NED
156.3	42.6833	-23.0517		NED
156.4	42.6263	-22.9833		NED
156.8	42.6250	-23.0567		NED
158.5	42.6075	-23.0014		NED
158.5	42.6683	-23.0611		NED
158.7	42.6063	-23.0358		NED
159.3	42.6517	-22.9758		NED
159.3	42.6929	-22.9986		NED
159.5	42.6984	-23.0279	B1=18.8, R1=16.7	USNO-B1
159.9	42.6133	-23.0478		NED
161.2	42.6588	-22.9758		NED
164.6	42.6038	-23.0058		NED
165.6	42.6921	-23.0464		NED
166.1	42.6404	-22.9750		NED
166.6	42.6092	-22.9947		NED
166.7	42.6067	-22.9983		NED
166.7	42.6066	-22.9984	B=21.3, R2=20.1	SSS
167.7	42.6354	-23.0644		NED
168.1	42.6742	-23.0617		NED
170.5	42.6138	-22.9875		NED
170.6	42.6579	-22.9731		NED
171.2	42.6633	-23.0664		NED
172.1	42.6113	-23.0508		NED
172.3	42.6904	-23.0511		NED
173.0	42.6242	-23.0614	Mag=19.2	NED
174.3	42.6713	-23.0647		NED
174.5	42.6075	-22.9928		NED
175.4	42.6525	-23.0689	Mag=20.1	NED
175.6	42.6421	-22.9719		NED
175.7	42.6671	-22.9736		NED
175.7	42.6208	-23.0606		NED
176.2	42.6589	-22.9718	B1=20.1, R1=19.4	USNO-B1
177.6	42.5988	-23.0314		NED
177.9	42.6706	-22.9741	B1=20.0, R1=18.7	USNO-B1
178.3	42.6332	-23.0669	I=18.8, R2=20.4	USNO-B1
178.6	42.5975	-23.0144		NED
179.0	42.6329	-23.0669		NED
180.0	42.6337	-22.9728		NED
180.7	42.6050	-22.9931		NED
180.7	42.5971	-23.0117		NED
180.8	42.5972	-23.0116	B=20.6, R2=19.9	SSS
180.9	42.6071	-22.9903		NED
181.0	42.6921	-23.0531		NED
181.2	42.7025	-23.0369		NED
182.4	42.5962	-23.0154	B=22.1	SSS
185.9	42.5962	-23.0083		NED
186.0	42.6354	-22.9706		NED
187.1	42.6617	-22.9692		NED
187.1	42.6933	-23.0542		NED
187.6	42.7071	-23.0122		NED
189.0	42.6729	-22.9717		NED
190.1	42.6679	-23.0706		NED
190.9	42.6063	-22.9867		NED
191.6	42.6783	-23.0669		NED
193.9	42.6239	-22.9724	B=21.1	SSS
194.0	42.7088	-23.0275		NED
194.0	42.6238	-22.9725		NED
194.6	42.7092	-23.0275		NED
194.8	42.6554	-23.0742		NED
194.9	42.7093	-23.0129	B1=19.4, R1=16.6, R2=18.2	USNO-B1
196.3	42.6121	-22.9789		NED
196.8	42.6213	-23.0675	Mag=20.25	NED
197.6	42.5913	-23.0211		NED
198.5	42.7000	-23.0517		NED
198.7	42.7100	-23.0292		NED
198.7	42.6287	-22.9689		NED
198.8	42.6900	-22.9781		NED
198.9	42.6292	-22.9687	B=22.1, R2=19.9	SSS
199.4	42.7084	-23.0368	I=16.7, R1=17.7	USNO-B1
199.6	42.6617	-23.0747		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