Swift Trigger: 995004;

Presumed name: GRB 200907B

BAT	05^h 56^m 03.12^s, +06° 54′ 39.6″
position:	(89.013, +6.911 ± 180″)
XRT	05^h 56^m 06.94^s, +06° 54′ 22.7″
position:	(89.0289, 6.9063 ± 2.2″)
UVOT	No position available.
Galactic N_HI:	2.80×10⁰ cm^-2
Galactic E(B-V):	0.554 mag

Best RA:	05^h 56^m 06.94^s	= 89.0289 d
Best Dec:	+06° 54′ 22.7″	= 6.9063 d

Gal Lat:	-9
Gal Long:	200.35

Sun angle:	76.91°, 5.2 hr West

¹Sper #4 auto processing.

Galaxies within 3.33 of XRT position

	RA*	Dec*		Catalogue
9.3	89.0293	6.9037	R1=20.1, R2=20.9	USNO-B1
10.3	89.0289	6.9034	R1=20.1, R2=18.7	USNO-B1
18.4	89.0273	6.9014	B2=21.4, R1=20.1	USNO-B1
20.8	89.0238	6.9033		NED
22.4	89.0283	6.9125	R1=19.8, R2=15.8	USNO-B1
24.7	89.0300	6.9131		NED
25.5	89.0230	6.9024	B1=20.9, R2=17.0	USNO-B1
37.9	89.0183	6.9081		NED
40.9	89.0385	6.9001	R1=19.8, R2=18.7	USNO-B1
43.8	89.0170	6.9032	R1=19.8, R2=19.2	USNO-B1
45.1	89.0200	6.9153		NED
45.7	89.0171	6.9008		NED
46.5	89.0198	6.9155	B1=20.7, R2=16.2	USNO-B1
47.3	89.0404	6.9131		NED
48.2	89.0406	6.9130	B1=13.3, B2=13.2, I=12.8, R1=12.7, R2=13.0	USNO-B1
48.4	89.0229	6.8942		NED
49.5	89.0215	6.8947	B2=21.3, R1=19.9	USNO-B1
51.0	89.0147	6.9080	B1=19.6, R2=19.2	USNO-B1
51.8	89.0217	6.9189		NED
52.9	89.0146	6.9022		NED
52.9	89.0144	6.9093	B1=19.4, R2=19.2	USNO-B1
53.1	89.0146	6.9023	B1=20.3, B2=20.4, I=17.5, R1=18.2, R2=19.0	USNO-B1
53.4	89.0235	6.8925	B2=20.9, R1=19.8, R2=20.3	USNO-B1
53.6	89.0142	6.9092	B1=19.5, R2=19.2	USNO-B1
54.9	89.0166	6.8971	B1=21.0, R1=20.1, R2=19.1	USNO-B1
56.2	89.0350	6.9206		NED
56.5	89.0446	6.9069		NED
58.1	89.0375	6.9200		NED
60.3	89.0303	6.9230	R1=20.2, R2=19.2	USNO-B1
62.8	89.0154	6.9175		NED
64.4	89.0163	6.9192		NED
64.6	89.0447	6.9150	B2=20.6, I=18.5, R1=18.8, R2=19.0	USNO-B1
65.0	89.0158	6.9188	I=14.4, R2=13.8	USNO-B1
66.5	89.0238	6.8886		NED
66.6	89.0237	6.8885	B1=20.4, B2=19.7, R1=19.7	USNO-B1
66.6	89.0463	6.9122		NED
67.1	89.0471	6.9097		NED
68.2	89.0304	6.9252	R1=19.8, R2=20.8	USNO-B1
71.1	89.0215	6.8879	B1=20.3, B2=21.8, R1=17.5, R2=20.2	USNO-B1
71.5	89.0260	6.9259	B1=20.5, R2=18.0	USNO-B1
71.6	89.0254	6.9258		NED
73.4	89.0494	6.9047	B1=20.5, R2=19.2	USNO-B1
74.4	89.0187	6.8883		NED
74.6	89.0188	6.8882	R1=20.1, R2=20.6	USNO-B1
76.0	89.0493	6.9002	R1=17.4, R2=19.2	USNO-B1
78.0	89.0100	6.8953		NED
78.3	89.0217	6.8858		NED
79.6	89.0242	6.9281		NED
79.6	89.0304	6.9283		NED
79.9	89.0461	6.8922	R1=20.1, R2=21.0	USNO-B1
80.3	89.0454	6.9214		NED
81.7	89.0062	6.9036		NED
82.3	89.0176	6.9262	B2=19.9, R1=19.9, R2=19.0	USNO-B1
82.3	89.0138	6.8892		NED
82.4	89.0082	6.9165	R1=20.0, R2=19.2	USNO-B1
83.4	89.0412	6.9260	R1=20.2, R2=19.2	USNO-B1
83.9	89.0458	6.8903		NED
85.6	89.0417	6.8861		NED
87.2	89.0067	6.9161		NED
89.9	89.0512	6.9175		NED
90.2	89.0513	6.9178	R1=19.7, R2=20.4	USNO-B1
92.4	89.0429	6.9278		NED
92.9	89.0508	6.8924	R1=19.8, R2=20.2	USNO-B1
94.1	89.0354	6.8808		NED
94.2	89.0353	6.8809	B1=18.6, B2=18.0, I=15.9, R1=16.6, R2=17.3	USNO-B1
94.7	89.0537	6.8970	B2=21.5, R1=20.0, R2=20.6	USNO-B1
96.2	89.0262	6.8797	B2=21.8, R1=20.1	USNO-B1
96.5	89.0146	6.9292		NED
96.8	89.0136	6.9285	B1=20.8, R1=19.3, R2=16.2	USNO-B1
98.0	89.0050	6.9197		NED
98.1	89.0496	6.9244		NED
99.1	89.0096	6.9261		NED
99.2	89.0012	6.9042		NED
101.2	89.0138	6.8825		NED
101.5	89.0321	6.9342		NED
101.5	89.0371	6.9333	B2=19.9, I=18.0, R1=19.7, R2=18.4	USNO-B1
101.6	89.0571	6.9031		NED
101.8	89.0004	6.9068	B1=20.9, R1=19.6, R2=19.2	USNO-B1
103.0	89.0007	6.9005	B1=20.8, R2=18.9	USNO-B1
103.2	89.0258	6.8778		NED
103.3	89.0333	6.8779	I=18.6, R1=20.0, R2=19.9	USNO-B1
103.4	89.0475	6.8844		NED
104.3	89.0561	6.9169	B1=20.1, B2=20.1, R1=19.1, R2=19.0	USNO-B1
104.4	89.0471	6.8836	B1=20.4, R1=20.2	USNO-B1
106.5	88.9992	6.9097		NED
106.7	89.0483	6.9286		NED
112.1	89.0358	6.9367		NED
112.1	89.0359	6.9367	B1=17.9, B2=18.5, I=15.7, R1=16.1, R2=16.4	USNO-B1
113.3	89.0554	6.9233		NED
113.8	89.0100	6.8808		NED
115.2	89.0613	6.9058		NED
115.2	89.0097	6.8806	B2=21.9, I=18.7, R1=20.1, R2=20.1	USNO-B1
115.7	89.0238	6.8744		NED
116.0	88.9971	6.9133		NED
116.2	89.0608	6.9126	R1=20.2, R2=19.0	USNO-B1
116.2	89.0292	6.9386		NED
116.6	89.0464	6.9336	R1=19.9, R2=21.1	USNO-B1
119.4	89.0495	6.8802	B1=19.4, R1=20.0	USNO-B1
119.6	89.0419	6.9369	B1=20.2, R2=19.4	USNO-B1
119.6	89.0488	6.8794		NED
119.9	89.0017	6.9257	B1=20.4, B2=21.1, R1=19.6	USNO-B1
119.9	88.9962	6.8989	R1=20.0, R2=18.8	USNO-B1
120.7	88.9967	6.9161		NED
122.2	89.0475	6.8778		NED
122.6	88.9963	6.9167		NED
122.8	89.0474	6.8775	B1=20.5, B2=20.9, R1=18.3, R2=20.1	USNO-B1
123.2	89.0241	6.9402	B2=19.8, R1=19.2, R2=20.2	USNO-B1
123.7	89.0058	6.9319		NED
123.7	89.0108	6.8769		NED
123.7	89.0057	6.9318	B1=19.5, B2=19.6, I=18.1, R1=18.1, R2=18.8	USNO-B1
124.0	89.0367	6.8728		NED
124.1	89.0399	6.8736	B1=21.0, I=18.6, R2=20.9	USNO-B1
124.3	89.0104	6.8769		NED
125.1	89.0050	6.9319		NED
125.4	89.0588	6.9247		NED
126.1	89.0473	6.9362	B2=17.3, R1=20.1, R2=18.5	USNO-B1
128.4	88.9930	6.9085	B1=20.5, R2=16.2	USNO-B1
128.5	88.9996	6.9272		NED
129.2	89.0094	6.8761	B1=19.9, B2=19.7, I=16.6, R2=18.6	USNO-B1
129.2	89.0042	6.9325		NED
129.5	89.0092	6.8761		NED
129.7	89.0091	6.8761	B1=20.6, R1=17.4	USNO-B1
132.5	89.0093	6.8750	B1=19.5, R1=17.6	USNO-B1
132.6	89.0233	6.9427	I=18.6, R1=19.9, R2=19.2	USNO-B1
133.3	89.0617	6.8883		NED
133.5	89.0226	6.9428	B2=19.3, I=18.7, R1=19.5, R2=20.0	USNO-B1
133.8	88.9950	6.9219		NED
134.4	89.0517	6.9358		NED
135.5	89.0096	6.8739		NED
135.7	89.0508	6.9369		NED
136.0	89.0600	6.9281	B1=20.1, R1=19.3, R2=27.6	USNO-B1
136.3	88.9921	6.8962	I=18.7, R1=20.0, R2=20.7	USNO-B1
136.7	88.9907	6.9043	B1=20.9, R2=19.0	USNO-B1
136.7	88.9921	6.8961		NED
137.4	89.0448	6.9410	B1=20.6, R2=16.8	USNO-B1
138.0	89.0430	6.9420	B2=21.4, I=18.7, R1=18.7, R2=19.9	USNO-B1
140.1	89.0322	6.8675	B1=18.1, B2=18.2, I=15.9, R1=16.5, R2=17.3	USNO-B1
140.2	89.0321	6.8675		NED
140.3	89.0042	6.8761		NED
140.5	89.0642	6.9231		NED
140.9	88.9895	6.9081	B1=20.9, R1=20.0, R2=18.6	USNO-B1
145.3	89.0342	6.9464		NED
145.6	89.0525	6.8733		NED
147.0	89.0600	6.8797		NED
147.1	89.0354	6.8658		NED
147.5	88.9875	6.9050		NED
147.7	89.0230	6.9469	B2=21.6, R1=20.1, R2=20.8	USNO-B1
148.9	89.0058	6.9408		NED
149.1	88.9873	6.9037	B1=20.5, B2=20.4, R1=19.4, R2=19.5	USNO-B1
150.7	89.0084	6.9429	B1=20.5, B2=20.2, I=17.9, R1=18.9, R2=20.1	USNO-B1
150.8	88.9868	6.9039	R1=18.8, R2=18.4	USNO-B1
151.0	88.9867	6.9042		NED
151.4	89.0081	6.9429	B1=20.0, R2=27.4	USNO-B1
151.4	89.0223	6.9479	B2=20.1, R1=19.9, R2=19.2	USNO-B1
151.5	88.9946	6.9310	B1=20.2, B2=21.3, R1=19.4, R2=20.0	USNO-B1
151.7	88.9921	6.9272		NED
152.4	89.0354	6.9482	R1=19.9, R2=20.7	USNO-B1
153.0	89.0671	6.9253		NED
153.1	89.0633	6.9314		NED
153.1	89.0332	6.9486	B2=21.4, R2=20.1	USNO-B1
153.4	89.0429	6.9467		NED
153.6	89.0633	6.9317		NED
153.7	88.9942	6.9314		NED
153.7	89.0193	6.8647	B1=14.0, B2=13.9, I=11.4, R1=12.6, R2=12.9	USNO-B1
153.8	89.0192	6.8647		NED
154.3	88.9913	6.9273	B1=20.9, R2=18.2	USNO-B1
154.3	88.9883	6.9217		NED
156.2	89.0171	6.8644		NED
156.6	89.0500	6.8681	B2=20.9, I=17.8, R1=18.5, R2=19.5	USNO-B1
157.0	89.0688	6.8878		NED
157.3	88.9971	6.9367		NED
157.5	89.0186	6.8637	R1=18.6, R2=16.7	USNO-B1
157.7	89.0333	6.9500		NED
158.7	89.0529	6.8692		NED
159.4	89.0483	6.8664		NED
160.4	89.0629	6.8775		NED
160.6	89.0246	6.8619		NED
161.3	89.0738	6.9105	R1=20.2, R2=19.2	USNO-B1
162.5	88.9913	6.9314		NED
164.8	89.0686	6.9296	I=18.0, R1=20.2, R2=19.2	USNO-B1
165.8	89.0213	6.9517		NED
167.0	89.0704	6.9272		NED
167.1	89.0130	6.9499	R1=20.0, R2=19.2	USNO-B1
167.1	89.0132	6.9500	R1=19.4, R2=20.6	USNO-B1
167.6	89.0592	6.8708		NED
168.2	89.0533	6.8664		NED
170.1	88.9858	6.9264		NED
170.9	89.0163	6.8606		NED
170.9	89.0238	6.9536		NED
171.4	89.0754	6.9181		NED
172.3	89.0229	6.8589		NED
173.0	88.9833	6.8903		NED
173.9	88.9827	6.9213	R1=19.2, R2=16.9	USNO-B1
173.9	89.0529	6.9481		NED
175.0	89.0763	6.8941	B1=20.8, R1=20.2	USNO-B1
175.8	88.9898	6.9360	B2=22.1, R1=19.2, R2=20.6	USNO-B1
176.6	88.9825	6.9236		NED
176.8	88.9842	6.8853		NED
177.2	89.0233	6.8575		NED
177.2	89.0629	6.8706		NED
177.4	89.0331	6.9554	B2=20.1, I=18.3, R1=19.5, R2=19.6	USNO-B1
178.5	89.0279	6.9558		NED
178.6	89.0267	6.8567		NED
178.7	89.0282	6.9559	B1=14.9, B2=15.0, I=13.6, R1=14.1, R2=13.9	USNO-B1
179.0	88.9813	6.9217		NED
179.2	89.0292	6.9561	R1=19.7, R2=17.9	USNO-B1
179.3	89.0486	6.9521	B1=20.2, R1=19.7, R2=19.2	USNO-B1
180.2	89.0000	6.9475		NED
180.2	89.0489	6.9523	B1=20.5, R1=20.1, R2=19.2	USNO-B1
180.5	88.9956	6.8686	B1=20.6, B2=21.5, R2=20.1	USNO-B1
181.3	88.9999	6.9476	B1=20.2, I=17.7	USNO-B1
181.3	88.9799	6.8933	B1=20.5, B2=21.7, R1=19.8, R2=20.1	USNO-B1
181.7	88.9858	6.8794		NED
182.1	88.9996	6.9477	I=17.8, R2=18.4	USNO-B1
182.3	88.9800	6.8917		NED
182.8	89.0771	6.8892		NED
183.0	89.0771	6.8891	B2=21.5, I=18.2, R1=19.5, R2=20.1	USNO-B1
184.1	89.0792	6.8947		NED
184.2	89.0539	6.8616	B2=20.6, I=17.5, R1=18.1	USNO-B1
184.3	89.0167	6.9561		NED
184.4	89.0538	6.8617		NED
185.2	89.0779	6.9225		NED
186.5	89.0808	6.9083		NED
186.7	88.9796	6.9235	B2=20.9, I=18.2, R1=19.1	USNO-B1
187.3	89.0238	6.9581		NED
187.4	89.0237	6.9581	B1=17.9, B2=18.3, I=16.4, R1=16.6, R2=16.2	USNO-B1
187.6	89.0690	6.9400	R1=19.9, R2=15.3	USNO-B1
188.2	89.0404	6.8553		NED
188.4	89.0768	6.9282	B1=20.9, R2=16.9	USNO-B1
188.5	89.0238	6.8542		NED
188.9	88.9850	6.8772		NED
189.6	89.0446	6.8561		NED
189.8	89.0788	6.8882	B1=20.7, B2=21.4	USNO-B1
190.0	88.9767	6.9175		NED
190.0	89.0579	6.9506		NED
190.2	89.0581	6.9505	B2=21.7, I=18.0, R1=18.7, R2=19.0	USNO-B1
190.3	88.9838	6.9347		NED
190.4	89.0779	6.9272		NED
191.4	88.9774	6.8917	R1=20.0, R2=20.7	USNO-B1
191.5	89.0565	6.9519	B2=18.8, R1=19.8, R2=17.6	USNO-B1
191.6	88.9775	6.8914		NED
191.6	89.0800	6.9222		NED
192.2	89.0517	6.9547		NED
194.3	89.0471	6.8556		NED
194.6	89.0743	6.9361	B1=18.6, I=16.2, R2=15.6	USNO-B1
195.3	88.9822	6.8781	I=18.2, R1=19.7, R2=20.7	USNO-B1
195.5	88.9821	6.8781		NED
195.8	89.0746	6.9361		NED
196.0	89.0818	6.9207	B1=20.2, R2=18.4	USNO-B1
196.7	89.0154	6.8533		NED
196.7	88.9746	6.9167		NED
198.0	89.0517	6.8561		NED
198.0	89.0821	6.9217		NED
198.2	88.9933	6.9486		NED
198.5	88.9733	6.9025		NED
199.4	89.0054	6.8561		NED
199.4	89.0846	6.9019		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