Swift Trigger: 1149293;

Presumed name: GRB 230116D

BAT	06^h 34^m 22.56^s, +49° 50′ 24.0″
position:	(98.594, +49.840 ± 180″)
XRT	06^h 34^m 28.24^s, +49° 52′ 20.9″
position:	(98.61768, 49.87247 ± 1.9″)
UVOT	No position available.
Galactic N_HI:	1.15×10²¹ cm^-2
Galactic E(B-V):	0.126 mag

Best RA:	06^h 34^m 28.24^s	= 98.61768 d
Best Dec:	+49° 52′ 20.9″	= 49.87247 d

Gal Lat:	17.83
Gal Long:	165.4

Sun angle:	147.19°, -10.7 hr East of Sun

Galaxies within 200 of XRT position

	RA*	Dec*		Catalogue
9.2	98.6200	49.8706		NED
17.0	98.6221	49.8689		NED
19.1	98.6167	49.8778		NED
24.5	98.6121	49.8667		NED
31.0	98.6062	49.8772		NED
31.4	98.6300	49.8692		NED
32.1	98.6150	49.8811		NED
33.9	98.6062	49.8667		NED
34.2	98.6254	49.8644		NED
37.8	98.6279	49.8806		NED
39.4	98.6158	49.8617		NED
44.3	98.6129	49.8844		NED
48.6	98.6383	49.8744		NED
48.9	98.5996	49.8656		NED
51.2	98.5957	49.8712	B1=20.9, R1=18.2	USNO-B1
54.3	98.6187	49.8575		NED
56.2	98.6408	49.8683		NED
59.2	98.5971	49.8628		NED
59.3	98.6121	49.8564		NED
61.7	98.5914	49.8699	B1=17.1, B2=16.4, I=15.1, R1=15.8, R2=15.6	USNO-B1
62.5	98.5908	49.8697		NED
64.9	98.6363	49.8858		NED
65.3	98.6208	49.8906		NED
72.0	98.5971	49.8575		NED
79.1	98.5892	49.8847		NED
80.6	98.6396	49.8900		NED
83.1	98.5817	49.8728		NED
83.3	98.6295	49.8943	I=18.5, R1=19.6, R2=20.3	USNO-B1
84.0	98.6225	49.8494		NED
84.2	98.6179	49.8492		NED
86.9	98.6296	49.8953		NED
87.0	98.5929	49.8908		NED
87.2	98.5900	49.8889		NED
87.9	98.6329	49.8503		NED
88.7	98.5800	49.8772		NED
88.8	98.6332	49.8499	B1=17.3, B2=16.5, I=15.2, R1=16.1, R2=15.6	USNO-B1
89.8	98.5847	49.8855	B2=21.3, R1=19.0	USNO-B1
90.1	98.5846	49.8856		NED
90.3	98.6567	49.8733		NED
90.5	98.6392	49.8933		NED
91.6	98.5829	49.8600		NED
92.3	98.6542	49.8825		NED
96.4	98.5852	49.8558	B2=19.9, I=18.3, R1=19.2, R2=19.3	USNO-B1
96.7	98.5850	49.8556		NED
98.0	98.6312	49.8983		NED
98.7	98.6096	49.8456		NED
99.4	98.5792	49.8847		NED
99.5	98.6604	49.8706		NED
99.6	98.6604	49.8747		NED
100.3	98.6558	49.8856		NED
101.0	98.5983	49.8472		NED
101.7	98.6512	49.8906		NED
101.8	98.6516	49.8904	B1=18.4, B2=17.3, I=16.1, R1=17.3, R2=16.7	USNO-B1
103.4	98.5729	49.8728		NED
104.8	98.6408	49.8975		NED
105.6	98.6363	49.8456		NED
108.2	98.5896	49.8483		NED
108.5	98.6517	49.8517		NED
109.4	98.6571	49.8892		NED
110.1	98.6296	49.9019		NED
110.9	98.6512	49.8506		NED
111.7	98.5854	49.8956		NED
113.9	98.6179	49.9042		NED
113.9	98.6142	49.8408		NED
114.5	98.6271	49.8411		NED
116.1	98.6675	49.8692		NED
116.2	98.6522	49.8491	B1=20.2, B2=19.4, I=16.9, R1=18.1, R2=17.9	USNO-B1
116.5	98.6375	49.8428		NED
116.6	98.5700	49.8619		NED
116.9	98.6678	49.8691	B1=16.8, B2=16.2, I=15.4, R1=16.2, R2=15.7	USNO-B1
117.1	98.6624	49.8574	B1=20.8, B2=20.7, R1=19.5, R2=19.9	USNO-B1
117.2	98.6196	49.8400		NED
118.0	98.5921	49.9008		NED
118.4	98.6625	49.8567		NED
118.6	98.5946	49.8431		NED
118.7	98.5867	49.8464		NED
119.1	98.5725	49.8881		NED
122.0	98.6696	49.8781		NED
122.9	98.5842	49.8989		NED
127.4	98.6238	49.9078		NED
127.9	98.6238	49.9078	B1=20.3, B2=19.5, I=18.2, R1=18.8, R2=18.5	USNO-B1
129.1	98.5867	49.9022		NED
131.2	98.5821	49.8442		NED
131.6	98.6637	49.8511		NED
131.8	98.5617	49.8669		NED
131.9	98.6275	49.8364		NED
132.2	98.5729	49.8497		NED
132.5	98.5675	49.8903		NED
132.7	98.6575	49.8461		NED
133.1	98.5604	49.8739		NED
134.2	98.5992	49.9078		NED
136.9	98.6663	49.8939		NED
138.2	98.6262	49.9106		NED
139.4	98.6213	49.9111		NED
140.7	98.6708	49.8914		NED
140.8	98.5742	49.9000		NED
141.8	98.6737	49.8881		NED
142.1	98.5896	49.8375		NED
142.3	98.6383	49.9097		NED
142.6	98.6783	49.8669		NED
143.3	98.6612	49.8442		NED
144.0	98.5629	49.8536		NED
144.0	98.5958	49.8350		NED
144.4	98.6133	49.8325		NED
144.9	98.6487	49.9072		NED
145.2	98.6488	49.9075	B1=18.7, B2=18.3, I=17.3, R1=17.8, R2=17.3	USNO-B1
147.4	98.6062	49.9128		NED
147.7	98.5692	49.8458		NED
147.8	98.5821	49.9064		NED
147.9	98.5825	49.9068	B1=20.9, B2=21.2, I=18.6	USNO-B1
148.0	98.5717	49.8439		NED
149.6	98.5687	49.8456		NED
149.8	98.6004	49.8322		NED
150.2	98.6433	49.9108		NED
150.6	98.5717	49.8429	B1=20.7, I=18.9	USNO-B1
150.7	98.5629	49.8953		NED
151.2	98.6829	49.8728	B1=19.8, B2=18.6, I=16.0, R1=17.3, R2=16.6	USNO-B1
151.3	98.6829	49.8728		NED
151.9	98.6396	49.8328		NED
151.9	98.6812	49.8631		NED
152.8	98.6796	49.8867		NED
153.1	98.6088	49.8303		NED
153.3	98.5523	49.8786	B2=20.2, I=18.1, R1=17.5, R2=18.9	USNO-B1
153.5	98.6583	49.8389		NED
153.5	98.5521	49.8775		NED
153.7	98.5521	49.8781		NED
155.3	98.6842	49.8672		NED
155.4	98.6273	49.8298	B1=20.8, B2=21.9, R2=20.3	USNO-B1
155.6	98.6021	49.9144		NED
155.6	98.5519	49.8809	I=18.9, R2=20.3	USNO-B1
155.9	98.6271	49.8294		NED
156.8	98.6758	49.8503		NED
156.8	98.5796	49.8364		NED
157.4	98.5925	49.8319		NED
157.5	98.6760	49.8501	B1=20.9, R1=19.3, R2=19.8	USNO-B1
157.6	98.5721	49.9050		NED
157.6	98.6358	49.9147		NED
158.8	98.5512	49.8619		NED
159.7	98.6330	49.8292	I=18.5, R1=19.3, R2=20.7	USNO-B1
162.2	98.5692	49.8400		NED
162.6	98.6750	49.8464		NED
163.1	98.6837	49.8878		NED
163.5	98.6329	49.8281		NED
163.5	98.5592	49.8469		NED
163.6	98.6471	49.9139		NED
163.9	98.5625	49.9011		NED
164.2	98.5767	49.9097		NED
164.3	98.5554	49.8507	B2=20.2, R2=20.0	USNO-B1
164.5	98.5546	49.8933		NED
164.5	98.6483	49.8314		NED
165.4	98.5517	49.8553		NED
165.9	98.6875	49.8819		NED
166.1	98.6800	49.8497		NED
166.3	98.5463	49.8700		NED
166.7	98.5542	49.8507	B1=20.0, B2=19.2	USNO-B1
167.2	98.6253	49.8263	B2=20.8, R1=18.8	USNO-B1
167.5	98.6854	49.8564		NED
168.1	98.6192	49.9192		NED
169.6	98.6050	49.8261		NED
169.6	98.6867	49.8572		NED
172.0	98.5683	49.8369		NED
172.3	98.5516	49.8506	B1=20.1, R2=19.2	USNO-B1
173.8	98.6842	49.8947		NED
174.4	98.6213	49.9208		NED
174.5	98.5438	49.8814		NED
175.1	98.5421	49.8744		NED
175.1	98.5500	49.8508		NED
177.4	98.5454	49.8886		NED
177.4	98.6737	49.9058		NED
177.9	98.6796	49.9014		NED
178.5	98.6799	49.9017	B1=15.0, B2=14.5, I=13.3, R1=14.1, R2=13.6	USNO-B1
179.2	98.6274	49.8231	B1=20.5, B2=20.9, I=18.2, R1=18.6, R2=19.2	USNO-B1
179.3	98.6146	49.9222		NED
179.5	98.5992	49.8242		NED
179.7	98.6275	49.8231		NED
181.1	98.5942	49.9206		NED
182.5	98.5408	49.8619	B1=20.9, B2=20.5	USNO-B1
182.7	98.6962	49.8742		NED
182.8	98.6742	49.8372		NED
183.2	98.5833	49.9183		NED
183.2	98.5394	49.8660	I=18.3, R1=18.9	USNO-B1
183.3	98.5407	49.8610	B1=20.3, B2=20.8	USNO-B1
183.5	98.6717	49.8353		NED
183.7	98.5392	49.8661		NED
183.7	98.6958	49.8653		NED
183.8	98.6704	49.9106		NED
184.5	98.5408	49.8594	B1=20.4, B2=18.7	USNO-B1
184.9	98.5407	49.8592	B1=20.3, B2=19.0	USNO-B1
185.0	98.5550	49.9044		NED
185.3	98.5411	49.8579	B1=19.7, B2=16.7, R1=18.4	USNO-B1
185.7	98.5937	49.8233		NED
186.2	98.6387	49.9225		NED
186.5	98.6387	49.9225	B1=19.7, B2=18.8, I=18.0, R1=18.3, R2=18.2	USNO-B1
186.9	98.5932	49.9219	B1=20.8, B2=19.8, I=17.8, R1=19.4, R2=19.0	USNO-B1
187.1	98.6650	49.9144		NED
187.2	98.6117	49.8206		NED
187.3	98.6788	49.8383		NED
187.5	98.5504	49.9017		NED
187.8	98.5417	49.8908		NED
188.7	98.5608	49.8350		NED
188.7	98.6117	49.8203		NED
188.7	98.5375	49.8817		NED
189.8	98.6204	49.9253		NED
190.0	98.5725	49.8286		NED
190.5	98.5412	49.8918	I=18.2, R1=19.6, R2=19.7	USNO-B1
190.6	98.5403	49.8547	B1=19.0, B2=10.4, R1=18.4	USNO-B1
191.0	98.5421	49.8517		NED
191.0	98.6879	49.9003		NED
192.8	98.5346	49.8717		NED
193.7	98.7008	49.8694		NED
193.7	98.6912	49.8978		NED
193.8	98.6433	49.8214		NED
194.7	98.5371	49.8872		NED
195.0	98.6330	49.9257	B1=20.2, R1=19.1	USNO-B1
195.0	98.5711	49.8274	B1=20.1, B2=18.9, I=18.1, R1=18.8, R2=18.6	USNO-B1
195.1	98.5404	49.8508		NED
195.3	98.5344	49.8646	B1=20.5, B2=19.5, I=17.9, R1=17.6, R2=18.5	USNO-B1
195.5	98.5342	49.8644		NED
196.0	98.7014	49.8798	I=19.0, R1=19.3	USNO-B1
196.1	98.5354	49.8850		NED
196.3	98.6342	49.9258		NED
196.3	98.7017	49.8792		NED
196.6	98.6750	49.8325		NED
197.8	98.5408	49.8964		NED
197.8	98.6817	49.9086		NED
197.9	98.5588	49.9125		NED
198.1	98.6929	49.8464		NED
198.2	98.5687	49.8275		NED
198.5	98.6338	49.9266	B1=20.6, I=18.6, R2=20.6	USNO-B1
198.5	98.6863	49.8394		NED
199.0	98.6864	49.8394	B1=18.5, B2=17.5, I=16.7, R1=17.5, R2=16.9	USNO-B1

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