Swift Trigger: 895813;

Presumed name: GRB 190331A

BAT	01^h 54^m 18.24^s, +27° 37′ 08.4″
position:	(28.576, +27.619 ± 180″)
XRT	No position available.
UVOT	No position available.
Galactic N_HI:	6.08×10⁰ cm^-2
Galactic E(B-V):	0.068 mag

Best RA:	01^h 54^m 18.24^s	= 28.576 d
Best Dec:	+27° 37′ 08.4″	= +27.619 d

Gal Lat:	-33.21
Gal Long:	139.6

Sun angle:	30.18°, -1.3 hr East of Sun

Galaxies within 3.33 of BAT position

	RA*	Dec*	Redshift		Catalogue
9.0	28.5737	27.6205		B=21.9, R=20.0	APM-N
32.6	28.5838	27.6132		B=21.8, R=20.0	APM-N
37.4	28.5807	27.6285		R1=20.0, R2=20.4	USNO-B1
38.1	28.5646	27.6161			NED
47.8	28.5893	27.6130		B2=20.8, R1=19.9	USNO-B1
53.1	28.5667	27.6313		B=21.8, R=20.0	APM-N
57.5	28.5687	27.6336		B1=20.7, R1=20.0	USNO-B1
62.3	28.5833	27.6031			NED
63.1	28.5854	27.6344			NED
65.6	28.5798	27.6369		B=21.4, R=19.6	APM-N
67.7	28.5575	27.6281			NED
67.8	28.5574	27.6280		B1=19.6, B2=18.5, I=15.7, R1=17.2, R2=17.0	USNO-B1
68.4	28.5790	27.6002		B=21.4, R=20.0	APM-N
71.9	28.5758	27.6389			NED
75.1	28.5971	27.6281			NED
76.9	28.5561	27.6070		B1=20.4, B2=20.7, I=18.4, R2=19.9	USNO-B1
78.8	28.6001	27.6141		B=21.9, R=20.0	APM-N
78.9	28.5517	27.6149		B=22.0, R=20.0	APM-N
79.5	28.6007	27.6220		B=21.6, R=20.0	APM-N
81.5	28.5696	27.6409		B=22.0, R=19.8	APM-N
83.4	28.6021	27.6186		B=21.4, R=19.9	APM-N
84.5	28.5784	27.5956		B=21.3, R=20.0	APM-N
85.4	28.5816	27.6422		B1=20.4, B2=20.9, R1=19.9	USNO-B1
86.4	28.5865	27.5969		B=21.7, R=20.0	APM-N
87.1	28.5703	27.6427		B=22.0, R=19.7	APM-N
94.5	28.6037	27.6283			NED
94.8	28.5675	27.6442	0.480900		NED
95.9	28.6061	27.6192		B=20.5, R=17.8	APM-N
96.1	28.6062	27.6192			NED
98.0	28.5592	27.6419			NED
98.2	28.5594	27.6420		B=17.5, R=16.3	APM-N
98.6	28.5950	27.6406			NED
98.6	28.5593	27.6421		B1=18.3, B2=17.0, I=15.7, R1=17.3, R2=16.5	USNO-B1
99.5	28.5592	27.6423		B=17.6, R=16.4	APM-N
102.5	28.5705	27.6471		B=21.9, R=19.1	APM-N
104.4	28.5679	27.6471		B=21.8, R=20.0	APM-N
105.2	28.5822	27.6477		B=21.8, R=20.0	APM-N
106.1	28.5643	27.6466		B=21.7, R=20.0	APM-N
106.5	28.5427	27.6213		B1=19.6, R1=20.0	USNO-B1
108.1	28.5987	27.6414			NED
108.2	28.5430	27.6122		B=21.9, R=20.0	APM-N
108.4	28.5883	27.6469			NED
109.8	28.5954	27.6442		B=22.0, R=19.7	APM-N
110.4	28.5592	27.6458			NED
112.9	28.5446	27.6044	-0.000574		NED
113.6	28.6014	27.5968		B=21.9, R=20.0	APM-N
118.8	28.6109	27.6305		B=20.4, R=18.4	APM-N
124.2	28.6137	27.6104		B=21.4, R=19.4	APM-N
124.7	28.6019	27.6449		B2=21.0, R1=20.0, R2=20.3	USNO-B1
125.0	28.6020	27.6450		B=21.9, R=19.4	APM-N
125.1	28.6142	27.6267		B=21.9, R=20.0	APM-N
125.1	28.6151	27.6217		B=19.8, R=18.4	APM-N
125.5	28.6142	27.6275		R1=19.6, R2=20.4	USNO-B1
127.5	28.5795	27.6543		I=18.6, R1=19.9	USNO-B1
129.4	28.5805	27.6547		B=20.3, R=18.3	APM-N
130.1	28.5479	27.5928			NED
130.2	28.5805	27.6550		B=20.1, R=18.2	APM-N
134.6	28.5350	27.6100			NED
135.9	28.5367	27.6339			NED
136.0	28.5546	27.6517			NED
136.1	28.6183	27.6144	0.364551		NED
139.4	28.5350	27.6056		B=22.0, R=20.0	APM-N
140.2	28.6095	27.6442		B=21.5, R=20.0	APM-N
140.2	28.5675	27.6572		B=22.0, R=20.0	APM-N
143.0	28.5446	27.5906			NED
143.5	28.6196	27.6286			NED
145.2	28.6215	27.6198		B=21.9, R=20.0	APM-N
146.9	28.6124	27.6440		B=22.0, R=19.5	APM-N
147.0	28.5618	27.6578		B=21.8, R=20.0	APM-N
149.3	28.6207	27.6068		I=18.4, R2=20.1	USNO-B1
150.5	28.5541	27.6560		B=22.0, R=19.9	APM-N
152.8	28.6239	27.6194		B=21.8, R=20.0	APM-N
153.8	28.5590	27.5790		B1=21.1, I=18.5, R2=20.4	USNO-B1
154.1	28.5310	27.6346		B=21.8, R=20.0	APM-N
155.9	28.6177	27.6417		B=22.0, R=19.8	APM-N
157.5	28.6181	27.5961		B2=21.1, R2=19.7	USNO-B1
161.5	28.5309	27.6394		B2=20.7, I=18.0, R1=19.3, R2=19.4	USNO-B1
161.6	28.6181	27.6440		B=22.0, R=19.8	APM-N
163.1	28.5708	27.6642			NED
166.5	28.5906	27.6634		B=22.0, R=20.0	APM-N
166.7	28.6146	27.6500			NED
166.8	28.6140	27.5872		B=20.1, R=17.5	APM-N
166.9	28.6142	27.5872			NED
167.5	28.6215	27.6423		B=22.0, R=19.4	APM-N
169.2	28.6198	27.6455		B=22.0, R=19.7	APM-N
170.4	28.5712	27.6662		B2=20.9, R2=20.2	USNO-B1
173.1	28.6249	27.6399		I=18.6, R1=20.0	USNO-B1
173.1	28.5712	27.6669		B=21.7, R=19.7	APM-N
174.3	28.5260	27.6384		B=21.4, R=19.9	APM-N
175.2	28.6024	27.6617		B=22.0, R=19.2	APM-N
175.3	28.6275	27.6019			NED
178.1	28.6300	27.6072			NED
179.2	28.5244	27.5993		B=21.7, R=20.0	APM-N
179.7	28.6187	27.5867			NED
180.0	28.6083	27.6600			NED
180.2	28.6318	27.6265		B=21.7, R=20.0	APM-N
180.8	28.5796	27.6692			NED
186.4	28.6343	27.6229		I=18.4, R1=19.5, R2=20.2	USNO-B1
187.6	28.5356	27.6568		B=21.6, R=19.5	APM-N
189.4	28.6295	27.5962		B=21.7, R=20.0	APM-N
189.6	28.6298	27.6415		B=21.1, R=18.9	APM-N
191.4	28.5757	27.6722		B=22.0, R=19.9	APM-N
193.2	28.5168	27.6305		B=21.4, R=18.8	APM-N
194.1	28.5154	27.6241		B=21.9, R=20.0	APM-N
194.3	28.5659	27.6722		B=21.4, R=18.2	APM-N
194.3	28.5658	27.6722			NED
194.6	28.5330	27.5806		B1=21.1, B2=21.1, R2=20.4	USNO-B1
195.0	28.5225	27.5925			NED
195.1	28.5850	27.6726		B=22.0, R=19.9	APM-N
195.1	28.5657	27.6724		B=21.3, R=17.9	APM-N
195.3	28.6296	27.6456			NED
197.2	28.6150	27.6615		B=22.0, R=20.0	APM-N
199.3	28.5144	27.6283		B=19.6, R=17.2	APM-N

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