Swift Trigger: 278903;

Presumed name: GRB 070509

BAT	15^h 51^m 42.48^s, -78° 40′ 51.6″
position:	(237.927, -78.681 ± 180″)
XRT	15^h 51^m 50.21^s, -78° 39′ 04.0″
position:	(237.9592, -78.6511 ± 4.6″)
UVOT	No position available.
Galactic N_HI:	0.00×10⁰ cm^-2
Galactic E(B-V):	0.140 mag

Best RA:	15^h 51^m 50.21^s	= 237.9592 d
Best Dec:	-78° 39′ 04.0″	= -78.6511 d

Gal Lat:
Gal Long:

Sun angle:	not found

Galaxies within 3.33 of XRT position

	RA*	Dec*	Redshift		Catalogue
3.6	237.9600	-78.6522			NED
20.8	237.9884	-78.6518		B2=20.7, R2=20.5	USNO-B1
21.1	237.9556	-78.6569		I=17.8, R1=17.2	USNO-B1
44.3	237.9951	-78.6612		B2=20.1, I=18.1, R1=18.4, R2=18.3	USNO-B1
45.0	238.0215	-78.6536		B=20.4, R2=18.7, i=17.8	SSS
45.3	237.9479	-78.6387		B=22.0	SSS
47.1	238.0065	-78.6419		B=18.8, R2=17.0, i=15.3	SSS
58.2	238.0396	-78.6545		B2=21.1, R2=21.5	USNO-B1
69.1	238.0359	-78.6392		B2=20.7, R1=19.4, R2=19.0	USNO-B1
74.1	237.8777	-78.6640		B2=16.4, I=14.3, R1=14.7, R2=14.7	USNO-B1
79.4	237.9370	-78.6295		I=18.2, R2=20.2	USNO-B1
79.7	237.8928	-78.6690		B2=19.5, I=17.5, R1=17.9, R2=17.9	USNO-B1
79.7	237.9367	-78.6294		B=21.5, R2=19.6	SSS
81.3	238.0459	-78.6363		B=20.3	SSS
81.4	238.0460	-78.6363		R1=19.9, R2=19.1	USNO-B1
82.3	237.8438	-78.6537		B2=19.9, I=18.4, R1=18.4, R2=19.1	USNO-B1
83.1	237.8503	-78.6426		B2=19.0, I=17.3, R1=17.4, R2=17.2	USNO-B1
83.6	238.0490	-78.6360		B2=20.4, R1=18.7, R2=18.2	USNO-B1
84.8	237.8475	-78.6596		B=19.3, R2=18.0, i=17.9	SSS
85.1	237.8472	-78.6597		B2=18.5, I=17.4, R1=17.7, R2=17.1	USNO-B1
87.3	237.8501	-78.6398		B2=19.3, I=18.5, R1=18.6, R2=18.4	USNO-B1
87.5	237.8447	-78.6602		B=20.1, R2=18.0, i=18.4	SSS
93.4	237.9978	-78.6759		B2=16.4, I=13.7, R1=14.3, R2=14.4	USNO-B1
98.6	238.0547	-78.6312		B=21.6, R2=20.3	SSS
99.9	238.0981	-78.6559		B2=20.9, I=17.8, R2=19.1	USNO-B1
99.9	238.0981	-78.6559		B=21.2, R2=19.8	SSS
102.9	238.0774	-78.6345		B2=16.9, I=14.4, R1=14.8, R2=14.7	USNO-B1
104.2	238.1057	-78.6537		B2=21.1, I=18.5	USNO-B1
107.8	238.1108	-78.6538		B2=19.7, I=16.7, R1=17.7, R2=17.5	USNO-B1
108.1	238.1112	-78.6538		B=20.0, R2=18.3, i=17.0	SSS
108.4	237.9981	-78.6220		B=22.3, R2=20.5	SSS
108.5	237.8434	-78.6314		B=21.5, R2=19.9	SSS
110.3	238.0700	-78.6296		B2=16.7, I=14.7, R1=15.2, R2=15.2	USNO-B1
111.1	237.8136	-78.6626		B=22.4, R2=20.8	SSS
111.8	237.9948	-78.6208		B2=21.2, R1=20.1	USNO-B1
112.1	238.0613	-78.6749		B2=18.5, I=16.3, R1=16.5, R2=16.0	USNO-B1
112.5	237.8769	-78.6244		B=21.8	SSS
114.2	237.8174	-78.6662		B2=19.0, I=18.2, R1=18.3, R2=18.3	USNO-B1
116.2	237.8534	-78.6264		B=19.0, R2=18.1, i=17.5	SSS
116.7	237.7951	-78.6541		B2=21.2, R2=20.4	USNO-B1
117.9	237.9919	-78.6190		B=19.6, R2=19.2	SSS
118.1	238.0771	-78.6279		B=21.3, R2=19.4, i=17.9	SSS
118.2	237.9920	-78.6189		B2=19.1, R1=18.6, R2=18.1	USNO-B1
123.7	238.1338	-78.6518		B=21.2, R2=19.5	SSS
124.8	237.7964	-78.6379		I=18.5, R1=18.6, R2=19.4	USNO-B1
125.0	238.0967	-78.6729		I=18.9, R2=19.8	USNO-B1
132.6	237.8006	-78.6707		B2=20.3, I=18.4, R1=18.9, R2=19.1	USNO-B1
132.8	237.8723	-78.6838		B2=20.8, R2=19.4	USNO-B1
134.2	237.7757	-78.6419		R1=18.8, R2=19.7	USNO-B1
135.2	237.7744	-78.6418		B2=20.5, I=18.5, R1=19.3, R2=19.4	USNO-B1
135.7	237.7776	-78.6632		B=22.5	SSS
138.8	237.9920	-78.6131		B2=18.0, I=17.5	USNO-B1
140.9	237.9921	-78.6125		B=17.8, R2=16.4, i=16.4	SSS
142.4	238.0665	-78.6846		B2=21.0, I=18.0, R1=20.2	USNO-B1
144.4	238.0416	-78.6144		B=19.6, R2=18.5, i=18.2	SSS
145.8	237.7552	-78.6565		B=21.2, R2=20.6	SSS
146.0	238.1403	-78.6705		B2=18.8, I=17.9, R1=17.6, R2=17.4	USNO-B1
146.5	238.1164	-78.6247		B=21.2, R2=19.9	SSS
146.6	238.1163	-78.6247		B2=20.9, I=17.2, R2=20.3	USNO-B1
147.0	238.1661	-78.6480		B2=21.0, R2=19.9	USNO-B1
147.3	238.1665	-78.6479		B=21.4, R2=19.5	SSS
147.8	237.7686	-78.6345		I=18.4, R1=19.7	USNO-B1
148.6	238.1549	-78.6660		B=19.8, R2=18.5, i=17.8	SSS
149.1	237.9108	-78.6108		h=14.4, j=14.9, k=14.0	2MASS
149.3	237.9112	-78.6108			NED
149.6	237.7987	-78.6241		I=19.0, R2=20.2	USNO-B1
149.8	238.1558	-78.6664		I=18.3, R1=17.6, R2=18.3	USNO-B1
151.2	238.1572	-78.6669		B2=20.8, I=18.0, R1=19.0, R2=19.5	USNO-B1
152.4	237.7639	-78.6689		B=21.8	SSS
153.4	238.1752	-78.6482		B2=20.3, R1=19.0, R2=19.9	USNO-B1
153.6	238.1144	-78.6809		B2=21.2, R1=20.4, R2=21.1	USNO-B1
154.8	238.1765	-78.6557		B2=16.9, I=14.7, R1=15.3, R2=15.2	USNO-B1
155.1	237.7500	-78.6639		B2=19.6, I=18.4, R1=18.6, R2=18.9	USNO-B1
155.6	238.1476	-78.6289		B=21.9	SSS
156.3	238.1550	-78.6312		B=21.8, R2=20.8	SSS
157.9	238.1691	-78.6364		B=21.4, R2=19.7, i=18.7	SSS
158.0	238.1371	-78.6776		I=18.5, R1=19.5	USNO-B1
158.7	238.1274	-78.6220		B=20.5, R2=19.2	SSS
158.9	238.1277	-78.6220		B2=20.1, R1=18.5, R2=18.7	USNO-B1
159.6	238.1759	-78.6633		B2=21.1, I=18.2, R1=19.2, R2=19.7	USNO-B1
159.6	237.8221	-78.6159		I=18.7, R1=19.9	USNO-B1
160.0	238.1081	-78.6177		B=18.9, R2=18.2, i=18.0	SSS
160.7	238.1093	-78.6177		I=18.9, R1=18.3, R2=18.6	USNO-B1
163.7	237.8055	-78.6172		B2=18.8, I=14.7, R1=15.8, R2=15.3	USNO-B1
164.7	238.1902	-78.6460		B=21.2, R2=19.6, i=18.5	SSS
165.1	238.0019	-78.6060		B2=18.8, I=17.2, R1=17.3, R2=17.3	USNO-B1
167.5	238.1369	-78.6204		B=20.9, R2=19.9	SSS
167.9	237.8573	-78.6090		B=22.2, R2=20.5	SSS
167.9	238.1961	-78.6528		B=20.8, R2=19.8	SSS
169.3	238.1299	-78.6182		B=22.1	SSS
169.9	237.7328	-78.6356		B2=21.1, I=18.6, R2=20.1	USNO-B1
171.0	238.0962	-78.6902		I=17.4, R1=20.2	USNO-B1
171.9	238.2000	-78.6453		R1=17.3, R2=19.9	USNO-B1
172.7	238.2012	-78.6455		B=22.3, R2=19.2	SSS
172.8	237.8368	-78.6927		R1=19.4, R2=20.0	USNO-B1
173.8	237.7172	-78.6433		R1=18.9, R2=19.6	USNO-B1
174.1	237.8242	-78.6915		B2=20.8, R2=19.7	USNO-B1
174.2	237.7168	-78.6430		B2=20.8, R1=19.8, R2=20.1	USNO-B1
174.3	237.8124	-78.6123		B2=21.2, R1=20.2, R2=20.2	USNO-B1
174.6	237.7129	-78.6498		B2=18.3, I=15.7, R1=16.1, R2=16.2	USNO-B1
179.3	238.0622	-78.6056		B2=19.4, I=16.8, R1=17.0, R2=18.4	USNO-B1
179.9	238.0580	-78.6051		B2=16.3, I=15.8, R2=15.1	USNO-B1
180.3	238.0675	-78.6058		I=17.0, R1=15.4	USNO-B1
180.7	238.0787	-78.6068		B=16.9, R2=16.6, i=16.1	SSS
181.2	238.1728	-78.6789		B2=18.5, I=16.1, R1=16.7, R2=16.5	USNO-B1
181.2	238.0796	-78.6067	0.041649	Mag=17.3	NED
181.2	238.0796	-78.6067		h=13.0, j=13.8, k=12.7	2MASS
181.3	237.7745	-78.6163		B2=19.8, R1=18.6, R2=18.8	USNO-B1
181.6	238.0787	-78.6065		B2=15.7, R1=14.4, R2=14.1	USNO-B1
181.7	238.1000	-78.6090		B=16.4, R2=15.8, i=14.8	SSS
181.7	238.1008	-78.6091		B2=14.7, I=12.6, R1=13.1, R2=12.9	USNO-B1
182.0	238.1968	-78.6704		B=21.4, R2=20.9	SSS
183.9	238.1639	-78.6197		B=20.5, R2=18.9, i=18.1	SSS
184.0	238.1009	-78.6940		B2=20.5, R1=19.5, R2=19.8	USNO-B1
184.3	238.2181	-78.6463		B=18.8, R2=17.5	SSS
185.1	237.8949	-78.6013		B2=21.2, R1=19.1, R2=19.7	USNO-B1
187.4	237.7127	-78.6323		I=18.6, R1=19.8	USNO-B1
188.0	238.2112	-78.6675		B2=20.1, R2=19.4	USNO-B1
188.2	238.2027	-78.6303		B2=20.0, I=18.6, R1=19.1, R2=19.2	USNO-B1
189.9	238.0964	-78.6058		B2=18.8, I=16.9, R1=17.8, R2=17.4	USNO-B1
190.0	238.0963	-78.6058		B=19.1, R2=18.3, i=17.8	SSS
190.3	238.1994	-78.6275		B=21.6	SSS
190.4	238.1994	-78.6275		B2=21.8, I=18.9, R1=19.8, R2=20.1	USNO-B1
190.5	238.2074	-78.6716		B=21.3, R2=19.5	SSS
190.6	237.8633	-78.6016		I=18.5, R1=19.9, R2=20.3	USNO-B1
190.6	238.0900	-78.6048		B=19.2, R2=18.0, i=17.4	SSS
190.8	238.0919	-78.6050		B2=19.2, I=18.1, R2=17.7	USNO-B1
194.9	238.1970	-78.6240		B=21.8, R2=20.2	SSS
196.2	238.0397	-78.5990		B=22.3, R2=20.7	SSS
196.7	237.7847	-78.6937		B2=20.8, R2=19.9	USNO-B1
197.0	238.1185	-78.6063		B2=19.9, I=18.4, R1=19.1, R2=18.8	USNO-B1
199.0	237.7326	-78.6185		B2=19.6, R2=19.2	USNO-B1
199.3	238.1829	-78.6176		B=22.2	SSS

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