Swift Trigger: 1095288;

Presumed name: GRB 220306B

BAT	00^h 21^m 30.72^s, +71° 21′ 14.4″
position:	(5.378, +71.354 ± 180″)
XRT	00^h 21^m 32.71^s, +71° 21′ 47.3″
position:	(5.38628, 71.36313 ± 4.0″)
UVOT	No position available.
Galactic N_HI:	2.64×10²¹ cm^-2
Galactic E(B-V):	0.608 mag

Best RA:	00^h 21^m 32.71^s	= 5.38628 d
Best Dec:	+71° 21′ 47.3″	= 71.36313 d

Gal Lat:	8.63
Gal Long:	120.52

Sun angle:	77.89°, -1.2 hr East of Sun

Galaxies within 200 of XRT position

	RA*	Dec*		Catalogue
19.1	5.3954	71.3675		NED
27.8	5.3842	71.3553		NED
28.3	5.3992	71.3697		NED
30.7	5.4125	71.3619		NED
30.7	5.4079	71.3583		NED
31.0	5.3606	71.3605	B2=21.2, I=18.1, R1=19.0, R2=18.9	USNO-B1
31.5	5.4073	71.3575	B1=20.1, I=17.7, R2=19.2	USNO-B1
32.8	5.4142	71.3644		NED
34.3	5.3653	71.3564	I=17.1, R2=19.1	USNO-B1
34.3	5.3650	71.3564		NED
34.4	5.3562	71.3628		NED
38.1	5.4044	71.3720	B1=19.8, I=16.5, R1=17.2, R2=17.5	USNO-B1
39.1	5.4065	71.3719	R1=16.1, R2=17.1	USNO-B1
40.3	5.4083	71.3717		NED
45.1	5.4229	71.3675		NED
46.3	5.3954	71.3756		NED
46.6	5.3958	71.3758		NED
46.7	5.4221	71.3570	B1=18.9, B2=18.4, I=16.7, R1=17.7, R2=17.3	USNO-B1
47.4	5.4221	71.3567		NED
48.1	5.3447	71.3643	B1=20.6, B2=20.3, I=17.6, R1=18.4, R2=18.6	USNO-B1
48.4	5.4000	71.3503		NED
49.6	5.3526	71.3717	B2=20.6, I=16.6, R1=18.4, R2=18.6	USNO-B1
49.8	5.4057	71.3755	I=18.1, R1=19.3	USNO-B1
51.0	5.3521	71.3722		NED
51.1	5.3704	71.3497		NED
56.1	5.3954	71.3478		NED
56.2	5.4321	71.3578		NED
56.3	5.3871	71.3475		NED
59.2	5.4375	71.3622		NED
61.6	5.4300	71.3731		NED
62.8	5.3393	71.3720	I=17.5, R1=18.9	USNO-B1
63.7	5.4363	71.3556		NED
63.7	5.4208	71.3769		NED
66.6	5.3829	71.3447		NED
66.8	5.4200	71.3783		NED
67.0	5.3570	71.3470	B1=19.9, B2=19.8, I=17.5, R1=18.5, R2=18.7	USNO-B1
67.1	5.3571	71.3469		NED
67.1	5.4200	71.3783		NED
67.6	5.3929	71.3818	B1=20.6, B2=20.6, I=17.8, R1=18.8, R2=19.0	USNO-B1
68.3	5.4337	71.3518	B1=20.2, B2=19.0, I=17.8, R1=18.7, R2=18.6	USNO-B1
70.5	5.3938	71.3826	B1=20.4, R2=19.1	USNO-B1
71.8	5.3897	71.3830	R1=17.6, R2=19.1	USNO-B1
72.2	5.3300	71.3719		NED
72.8	5.3502	71.3798	R1=18.4, R2=19.1	USNO-B1
72.8	5.4492	71.3653		NED
74.2	5.4242	71.3464		NED
77.4	5.4534	71.3613	B1=20.5, R2=19.1	USNO-B1
79.8	5.3385	71.3792	B1=20.6, B2=20.4, I=18.1, R2=19.0	USNO-B1
80.0	5.3530	71.3436	B1=20.1, B2=19.8, I=17.0, R1=18.4, R2=18.0	USNO-B1
80.2	5.4450	71.3511		NED
80.5	5.3529	71.3436		NED
81.4	5.3163	71.3667		NED
81.8	5.4308	71.3808		NED
82.1	5.4312	71.3809	B1=19.4, B2=19.2, I=17.2, R1=17.8, R2=18.0	USNO-B1
83.1	5.4558	71.3572		NED
83.6	5.3575	71.3844		NED
84.8	5.3161	71.3703	B1=19.6, B2=19.1, I=17.2, R1=17.8, R2=17.9	USNO-B1
84.8	5.3158	71.3703		NED
85.0	5.4596	71.3606		NED
85.7	5.3121	71.3656		NED
85.7	5.4604	71.3606	I=18.0, R2=19.2	USNO-B1
86.1	5.4383	71.3461		NED
86.5	5.4379	71.3806		NED
86.8	5.4200	71.3417		NED
86.8	5.3600	71.3858		NED
87.4	5.3604	71.3858		NED
87.7	5.3200	71.3511		NED
88.1	5.3878	71.3387	I=18.0, R1=18.9, R2=19.2	USNO-B1
88.2	5.4517	71.3503		NED
88.4	5.3625	71.3397		NED
88.7	5.3879	71.3386		NED
89.5	5.3733	71.3386		NED
89.8	5.3174	71.3749	B1=20.4, I=16.9	USNO-B1
92.2	5.3700	71.3381	I=17.9, R1=19.0, R2=19.2	USNO-B1
92.5	5.3704	71.3883		NED
92.5	5.4025	71.3883		NED
92.6	5.3158	71.3756		NED
93.3	5.3271	71.3453		NED
93.7	5.3650	71.3883		NED
93.7	5.3342	71.3431		NED
93.7	5.4029	71.3886		NED
94.6	5.4112	71.3881		NED
94.8	5.4114	71.3882	B1=16.8, B2=16.8, I=14.7, R1=15.4, R2=15.5	USNO-B1
95.2	5.3821	71.3894		NED
95.8	5.3569	71.3880	B1=20.2, B2=20.3, I=18.0, R1=18.7, R2=18.7	USNO-B1
96.1	5.4612	71.3750		NED
96.3	5.4258	71.3867	I=18.1, R2=18.9	USNO-B1
96.3	5.4033	71.3894		NED
98.0	5.4075	71.3367		NED
98.8	5.3351	71.3852	B1=20.8, B2=21.6, R2=18.9	USNO-B1
99.0	5.4722	71.3620	B2=21.3, R2=19.1	USNO-B1
99.0	5.4659	71.3527	B2=21.6, R1=19.0, R2=19.2	USNO-B1
99.5	5.3433	71.3872		NED
101.3	5.4437	71.3417		NED
101.5	5.3150	71.3467		NED
101.6	5.2992	71.3581		NED
101.9	5.4004	71.3353		NED
102.3	5.3170	71.3809	B1=20.5, I=18.3	USNO-B1
103.0	5.4754	71.3647		NED
104.3	5.3008	71.3533		NED
104.9	5.4250	71.3367	B1=20.5, B2=20.1, I=17.9, R1=18.7, R2=18.3	USNO-B1
105.5	5.4287	71.3372		NED
105.6	5.4762	71.3686		NED
106.1	5.4575	71.3819	B1=20.2, B2=19.3, I=17.2, R1=18.8, R2=18.1	USNO-B1
106.4	5.4579	71.3817		NED
106.9	5.3237	71.3411		NED
107.4	5.3112	71.3808		NED
107.5	5.3633	71.3342		NED
109.2	5.3354	71.3375		NED
109.3	5.3992	71.3933		NED
113.4	5.3388	71.3356		NED
114.0	5.4654	71.3822		NED
114.7	5.3592	71.3939		NED
115.4	5.4862	71.3661		NED
116.8	5.4387	71.3908		NED
117.4	5.3058	71.3431		NED
117.5	5.3771	71.3306		NED
117.8	5.3054	71.3431		NED
118.1	5.4887	71.3619		NED
118.6	5.4229	71.3939		NED
119.5	5.4895	71.3669	B1=18.3, B2=17.8, I=14.9, R1=15.7, R2=16.0	USNO-B1
119.8	5.4896	71.3669		NED
120.2	5.4312	71.3331		NED
121.1	5.3237	71.3903		NED
121.4	5.4325	71.3328		NED
121.9	5.3400	71.3325		NED
122.1	5.3971	71.3294	B1=20.0, B2=20.5, I=17.8, R1=19.0, R2=18.8	USNO-B1
122.8	5.2904	71.3481		NED
123.0	5.3904	71.3972		NED
123.2	5.4646	71.3397		NED
123.4	5.3525	71.3306		NED
124.9	5.4901	71.3530	I=18.0, R2=19.1	USNO-B1
125.1	5.4408	71.3933		NED
125.4	5.4258	71.3306		NED
125.4	5.4950	71.3639		NED
125.5	5.4138	71.3294		NED
126.2	5.4837	71.3469		NED
126.3	5.3054	71.3869		NED
126.6	5.4921	71.3533		NED
126.6	5.2772	71.3678	B2=21.7, I=18.0, R1=19.4, R2=19.1	USNO-B1
127.2	5.4468	71.3927	B1=19.9, I=16.9, R1=16.7	USNO-B1
127.3	5.4467	71.3928		NED
127.6	5.2900	71.3808		NED
127.7	5.2901	71.3809	B1=20.1, B2=19.9, I=17.7, R1=18.4, R2=18.5	USNO-B1
128.7	5.3821	71.3989		NED
128.8	5.3187	71.3344		NED
129.6	5.2762	71.3708		NED
129.9	5.2760	71.3708	B1=17.5, B2=17.1, I=14.9, R1=15.7, R2=15.9	USNO-B1
130.0	5.4900	71.3492		NED
131.2	5.3483	71.3288	I=18.0, R2=18.9	USNO-B1
131.9	5.2771	71.3519		NED
132.4	5.5008	71.3603		NED
134.6	5.4719	71.3886	B1=20.8, I=17.7	USNO-B1
135.8	5.3921	71.4008		NED
136.0	5.3096	71.3919		NED
136.2	5.4733	71.3888	B1=20.6, I=17.4, R2=18.4	USNO-B1
136.3	5.4729	71.3889		NED
137.2	5.2975	71.3378		NED
137.3	5.2967	71.3380	B2=21.6, R2=19.1	USNO-B1
137.8	5.3083	71.3342		NED
138.2	5.3587	71.4005	B1=20.1, B2=21.6, R2=19.2	USNO-B1
138.2	5.4046	71.3253		NED
138.7	5.4229	71.3264		NED
138.7	5.3987	71.4014		NED
138.8	5.3008	71.3903		NED
138.8	5.4276	71.3269	B1=20.3, R2=19.1	USNO-B1
139.2	5.3392	71.3988	B2=20.7, I=17.6, R1=18.4	USNO-B1
139.6	5.3388	71.3989		NED
139.9	5.4756	71.3895	B2=20.4, I=18.1, R1=18.7, R2=18.6	USNO-B1
140.3	5.3779	71.3242		NED
140.3	5.5079	71.3658		NED
141.4	5.2642	71.3589		NED
142.0	5.4887	71.3850		NED
142.1	5.4212	71.4011		NED
142.1	5.4890	71.3851	I=18.0, R2=19.1	USNO-B1
142.7	5.4962	71.3814		NED
142.7	5.3208	71.3967		NED
143.5	5.3700	71.3236		NED
144.2	5.4700	71.3333		NED
145.4	5.2908	71.3897		NED
145.7	5.4121	71.4028		NED
146.1	5.3807	71.3226	B1=19.6, B2=19.2, I=17.0, R1=17.8, R2=17.9	USNO-B1
146.6	5.4758	71.3919		NED
146.7	5.3804	71.3225		NED
147.4	5.3900	71.3222		NED
147.4	5.4692	71.3944		NED
147.5	5.4850	71.3894		NED
147.8	5.4858	71.3892		NED
148.2	5.3129	71.3294		NED
149.0	5.4883	71.3886		NED
149.1	5.3707	71.4043	B1=18.8, B2=18.9, I=16.4, R1=17.4, R2=17.3	USNO-B1
149.2	5.4878	71.3889	R1=18.3, R2=17.9	USNO-B1
149.2	5.3704	71.4042		NED
149.3	5.3029	71.3314		NED
149.4	5.3029	71.3314	B1=20.6, B2=20.4, I=17.7, R1=18.4, R2=18.7	USNO-B1
149.5	5.3717	71.4044		NED
149.7	5.4075	71.4042		NED
151.2	5.2583	71.3731		NED
151.2	5.4067	71.4046	B1=20.6, B2=20.8, I=18.2, R1=19.2, R2=19.0	USNO-B1
151.6	5.4471	71.3258		NED
151.7	5.5042	71.3442		NED
152.0	5.3922	71.3210	B2=21.5, R1=18.9, R2=19.2	USNO-B1
152.3	5.2767	71.3394		NED
153.5	5.5175	71.3708		NED
153.5	5.5192	71.3597		NED
153.6	5.2677	71.3828	R1=18.8, R2=18.7	USNO-B1
154.0	5.3254	71.4011		NED
154.0	5.3596	71.3211		NED
154.3	5.3253	71.4013	B1=19.8, B2=18.7, I=16.4, R1=17.3, R2=17.1	USNO-B1
154.3	5.2671	71.3828	B2=20.9, I=17.9, R1=18.8, R2=18.5	USNO-B1
155.3	5.4437	71.4022		NED
155.3	5.4233	71.3217		NED
156.3	5.4087	71.3203		NED
156.8	5.5213	71.3692		NED
157.3	5.5225	71.3664		NED
158.0	5.5175	71.3503	I=17.9, R2=19.0	USNO-B1
158.3	5.5175	71.3503		NED
158.5	5.5238	71.3660	R1=18.3, R2=19.1	USNO-B1
158.6	5.3632	71.3197	B2=21.4, R1=18.8, R2=19.2	USNO-B1
158.7	5.2808	71.3917		NED
159.1	5.2699	71.3870	B2=21.1, I=18.3, R1=18.9, R2=19.2	USNO-B1
159.2	5.3187	71.3244		NED
159.7	5.4517	71.4022		NED
160.4	5.4946	71.3350		NED
160.9	5.3375	71.3214		NED
161.3	5.2600	71.3828		NED
161.4	5.5260	71.3592	B1=20.6, B2=20.8, R2=19.1	USNO-B1
161.5	5.4971	71.3906		NED
161.7	5.3371	71.3211		NED
161.8	5.2587	71.3442		NED
164.5	5.2475	71.3742		NED
164.8	5.3271	71.4047		NED
164.9	5.3358	71.3203		NED
165.4	5.4572	71.4031	B1=20.7, R2=19.1	USNO-B1
165.5	5.5175	71.3443	B1=20.3, B2=20.0, I=17.0, R1=18.1, R2=18.3	USNO-B1
165.8	5.2556	71.3437	B1=17.9, B2=17.3, I=15.5, R1=16.4	USNO-B1
166.0	5.5179	71.3442		NED
166.0	5.4354	71.3197		NED
166.6	5.4308	71.4072		NED
167.3	5.4654	71.3242		NED
167.6	5.2542	71.3433		NED
168.1	5.4796	71.3992		NED
168.3	5.2442	71.3519		NED
168.5	5.3933	71.3164		NED
169.7	5.2492	71.3806		NED
170.0	5.4146	71.4094		NED
170.5	5.3275	71.3196	B1=19.3, B2=20.8, R2=19.1	USNO-B1
171.3	5.3840	71.3156	B2=21.2, R1=19.5, R2=19.2	USNO-B1
171.5	5.5075	71.3356		NED
172.0	5.4554	71.4056		NED
172.2	5.5358	71.3611		NED
172.3	5.5329	71.3536		NED
172.5	5.4557	71.4056	B2=20.2, I=16.6, R1=18.5, R2=18.4	USNO-B1
173.0	5.3254	71.4072		NED
173.4	5.4969	71.3959	B1=20.6, B2=21.5	USNO-B1
173.4	5.5092	71.3911		NED
173.7	5.2525	71.3406		NED
174.5	5.4704	71.4036		NED
174.8	5.5254	71.3828		NED
175.3	5.3054	71.3219		NED
175.6	5.2723	71.3307	I=17.6, R1=18.4	USNO-B1
176.0	5.2713	71.3308		NED
176.4	5.5046	71.3319		NED
177.9	5.2428	71.3816	B1=20.5, B2=21.2, R2=19.2	USNO-B1
178.1	5.4607	71.4065	B2=21.5, R2=19.1	USNO-B1
178.9	5.3179	71.4078		NED
179.1	5.4912	71.3264		NED
179.2	5.4691	71.3210	B1=20.8, B2=21.6, R2=19.2	USNO-B1
179.6	5.3942	71.4131		NED
179.6	5.2431	71.3831	B1=20.4, B2=20.9, I=17.8, R1=18.6, R2=19.2	USNO-B1
180.0	5.3149	71.4077	I=16.9, R2=16.3	USNO-B1
180.8	5.3129	71.4075		NED
180.9	5.2296	71.3587	B1=20.3, B2=20.9, R1=19.1, R2=18.5	USNO-B1
181.2	5.5112	71.3325	B1=20.6, R2=19.2	USNO-B1
182.2	5.2309	71.3534	B1=20.3, I=18.0, R1=18.0, R2=18.9	USNO-B1
182.5	5.2342	71.3778		NED
182.9	5.2842	71.3242		NED
183.3	5.3189	71.3170	B1=19.5, B2=18.9, R1=18.1	USNO-B1
184.9	5.2458	71.3881		NED
185.3	5.2481	71.3896	B1=20.7, R2=19.2	USNO-B1
185.3	5.5050	71.3283		NED
186.0	5.3862	71.4147		NED
186.0	5.3178	71.3163	B1=20.4, B2=19.4	USNO-B1
186.5	5.3956	71.3114	B1=20.1, B2=19.4, I=17.3, R1=18.3, R2=18.0	USNO-B1
186.6	5.3954	71.3114		NED
186.6	5.2325	71.3467		NED
187.1	5.4347	71.4127	B1=19.5, B2=20.1, I=17.7, R1=18.6, R2=18.8	USNO-B1
187.2	5.4350	71.4128		NED
187.3	5.3157	71.3163	R1=18.8, R2=18.9	USNO-B1
187.9	5.2279	71.3506		NED
188.7	5.3296	71.3139	B1=19.7, B2=18.8, I=17.9, R1=18.5, R2=17.3	USNO-B1
188.8	5.2262	71.3747		NED
189.4	5.4017	71.4156		NED
189.4	5.5508	71.3631		NED
189.7	5.3285	71.3138	B2=18.4, R1=17.8	USNO-B1
189.8	5.2517	71.3328		NED
190.1	5.5475	71.3747		NED
190.3	5.5476	71.3748	B1=19.7, B2=19.5, I=17.4, R1=18.2, R2=17.9	USNO-B1
190.4	5.2392	71.3389		NED
190.4	5.4667	71.4094		NED
190.4	5.2393	71.3389	B1=16.4, B2=16.7, I=14.5, R1=15.2, R2=15.3	USNO-B1
190.5	5.5171	71.3956		NED
190.6	5.4668	71.4094	B1=19.0, B2=18.5, I=16.1, R1=16.7, R2=16.9	USNO-B1
190.7	5.3117	71.4106		NED
190.8	5.4416	71.3132	B1=20.5, B2=21.0, I=18.1, R1=19.2, R2=18.9	USNO-B1
190.8	5.5172	71.3957	B1=14.8, B2=15.3, I=13.5, R1=13.8, R2=13.7	USNO-B1
190.9	5.3118	71.4105	B1=17.2, B2=17.2, I=15.1, R1=15.9, R2=16.0	USNO-B1
190.9	5.5512	71.3686		NED
191.2	5.2229	71.3728		NED
191.5	5.4212	71.4153		NED
191.6	5.5354	71.3869	B2=21.2, I=18.0	USNO-B1
191.8	5.4213	71.4152	B1=19.8, B2=19.5, I=17.7, R1=18.1, R2=18.2	USNO-B1
192.2	5.2196	71.3586		NED
192.3	5.2333	71.3847		NED
192.4	5.3479	71.4153		NED
192.5	5.5062	71.4006		NED
192.5	5.4446	71.4133		NED
192.6	5.3266	71.3132	B1=20.2, B2=20.7, R2=18.8	USNO-B1
192.7	5.3225	71.4128		NED
192.7	5.5064	71.4005	B1=20.4, I=17.8, R1=18.6	USNO-B1
192.8	5.5475	71.3489		NED
193.0	5.5479	71.3489	I=18.0, R1=18.9, R2=19.1	USNO-B1
193.3	5.3483	71.3108		NED
193.4	5.5375	71.3867		NED
194.7	5.5388	71.3867	B1=20.5, B2=20.2, I=18.0, R1=18.8, R2=18.6	USNO-B1
194.7	5.2932	71.4083	B2=21.5, R1=19.6, R2=19.2	USNO-B1
194.9	5.4808	71.3183		NED
195.0	5.5516	71.3751	B1=20.4, B2=20.3, R2=19.0	USNO-B1
195.2	5.2537	71.3294		NED
196.2	5.5374	71.3379	I=17.8, R2=18.7	USNO-B1
196.6	5.2317	71.3399	I=18.0, R1=19.4	USNO-B1
196.9	5.5012	71.4036		NED
197.0	5.5486	71.3807	R1=19.1, R2=19.1	USNO-B1
197.1	5.4679	71.3150		NED
197.9	5.2163	71.3547		NED
198.0	5.3886	71.3081	I=17.5, R1=18.9	USNO-B1
198.0	5.3175	71.3128		NED
198.5	5.3946	71.4181		NED
199.0	5.2171	71.3517		NED
199.3	5.2792	71.4067		NED
199.4	5.5567	71.3733		NED
199.7	5.5337	71.3342		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