Swift Trigger: 900285;

Presumed name: GRB 190424A

BAT	03^h 14^m 43.44^s, +20° 13′ 58.8″
position:	(48.681, +20.233 ± 180″)
XRT	No position available.
UVOT	No position available.
Galactic N_HI:	1.04×10⁰ cm^-2
Galactic E(B-V):	0.200 mag

Best RA:	03^h 14^m 43.44^s	= 48.681 d
Best Dec:	+20° 13′ 58.8″	= +20.233 d

Gal Lat:	-31.29
Gal Long:	162.92

Sun angle:	18.13°, -1.2 hr East of Sun

Galaxies within 3.33 of BAT position

	RA*	Dec*		Catalogue
49.8	48.6883	20.2211		NED
63.1	48.6971	20.2414		NED
67.6	48.6758	20.2149	I=18.3, R1=19.3, R2=19.2	USNO-B1
68.2	48.6758	20.2147		NED
85.4	48.6583	20.2439		NED
86.6	48.7062	20.2377	B1=17.8, B2=15.8, I=12.6, R1=14.5, R2=13.4	USNO-B1
86.8	48.7062	20.2378		NED
87.0	48.7063	20.2377	B=17.8, R=15.2	APM-N
87.0	48.7063	20.2377	h=13.4, j=14.1, k=13.0	2MASS
96.0	48.6840	20.2595	B1=20.1, B2=20.4, I=18.4, R1=19.1, R2=18.7	USNO-B1
99.5	48.6732	20.2597	B1=20.2, R1=19.1	USNO-B1
100.1	48.6991	20.2110	B=18.9, R=17.7	APM-N
100.7	48.6992	20.2108		NED
101.1	48.6754	20.2054	B1=19.1, B2=19.1, I=15.5, R1=16.7, R2=16.5	USNO-B1
101.2	48.6754	20.2053		NED
102.2	48.6994	20.2104	B1=19.6, R2=18.8	USNO-B1
104.1	48.6638	20.2092		NED
106.1	48.6559	20.2152	B2=21.2, I=19.2, R1=19.0, R2=19.3	USNO-B1
106.3	48.7112	20.2403		NED
111.1	48.7046	20.2547		NED
111.2	48.7044	20.2547	B=19.4, R=17.4	APM-N
111.2	48.7045	20.2547	h=14.7, j=15.6, k=14.3	2MASS
121.6	48.7167	20.2294		NED
125.3	48.6439	20.2316	B2=21.2, I=19.3, R1=19.3, R2=19.2	USNO-B1
140.3	48.7108	20.2058	B=21.2, R=18.3	APM-N
140.5	48.7108	20.2058		NED
141.2	48.7038	20.2658		NED
142.0	48.6592	20.2667		NED
143.2	48.6717	20.2719		NED
145.5	48.7125	20.2606		NED
149.5	48.7121	20.2033		NED
151.4	48.6404	20.2147		NED
153.7	48.7219	20.2144	B=16.8, R=14.6	APM-N
154.4	48.7141	20.2035	B=21.3, R=19.1	APM-N
154.4	48.7221	20.2142		NED
154.7	48.6866	20.2756	I=18.8, R1=19.4, R2=19.4	USNO-B1
155.1	48.6867	20.2758		NED
157.3	48.7225	20.2131		NED
158.3	48.6575	20.2711		NED
158.4	48.7258	20.2461		NED
159.0	48.6512	20.1986		NED
164.0	48.7110	20.2688	h=0.0, j=15.9, k=14.5	2MASS
164.0	48.7108	20.2689		NED
164.7	48.7110	20.2690	B=20.4, R=17.8	APM-N
168.5	48.7033	20.2747		NED
174.0	48.7004	20.1883		NED
174.6	48.6509	20.2724	B=21.3, R=19.9	APM-N
174.9	48.6329	20.2144		NED
178.2	48.6600	20.1878		NED
178.2	48.7317	20.2464		NED
184.9	48.6796	20.1817		NED
186.4	48.6292	20.2153		NED
187.0	48.6779	20.2847		NED
193.1	48.7371	20.2228	I=19.4, R1=19.1	USNO-B1
194.2	48.6392	20.1961		NED
195.6	48.6583	20.2831		NED
196.2	48.6581	20.2831	B1=19.9, B2=20.5, I=15.8, R1=17.7, R2=17.4	USNO-B1
198.5	48.6646	20.2858		NED
199.5	48.6394	20.1937	B=14.5, R=12.4	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