Swift Trigger: 676423;

Presumed name: GRB 160227A

BAT	12^h 59^m 09.12^s, +78° 38′ 20.4″
position:	(194.788, +78.639 ± 180″)
XRT	12^h 59^m 13.54^s, +78° 40′ 45.8″
position:	(194.8064, 78.6794 ± 2.0″)
UVOT	12^h 59^m 13.82^s, +78° 40′ 44.8″
position:	(194.8076, +78.6791 ± 0.8″)
Galactic N_HI:	3.49×10⁰ cm^-2
Galactic E(B-V):	0.053 mag

Best RA:	12^h 59^m 13.82^s	= 194.8076 d
Best Dec:	+78° 40′ 44.8″	= +78.6791 d

Gal Lat:	38.44
Gal Long:	122.44

Sun angle:	107.67°, 9.7 hr West

¹Sper #3 auto processing.

Galaxies within 3.33 of XRT position

	RA*	Dec*		Catalogue
11.0	194.7932	78.6810	B1=20.7, B2=20.5	USNO-B1
13.3	194.7933	78.6817		NED
13.9	194.7900	78.6775		NED
19.0	194.7956	78.6746	B=21.8, R=19.7	APM-N
35.9	194.7735	78.6718	B=21.8, R=19.7	APM-N
57.2	194.7483	78.6900		NED
70.2	194.8842	78.6673	B=21.8, R=19.8	APM-N
70.7	194.9029	78.6853		NED
75.3	194.8848	78.6936	B=21.8, R=20.0	APM-N
80.2	194.8772	78.6968	B=21.7, R=20.0	APM-N
82.7	194.8333	78.7014		NED
88.0	194.6915	78.6888	B=21.6, R=20.0	APM-N
88.0	194.6833	78.6772		NED
89.5	194.7282	78.6989	B2=20.7, R1=19.7	USNO-B1
89.5	194.7796	78.6550		NED
90.0	194.7270	78.6990	R1=19.6, R2=19.8	USNO-B1
90.2	194.7271	78.6990	B=20.4, R=19.0	APM-N
90.8	194.7272	78.6992	B2=21.1, R1=19.8	USNO-B1
91.7	194.7279	78.6992		NED
92.7	194.8613	78.7028	B1=18.4, I=18.3, R1=17.1, R2=19.6	USNO-B1
93.6	194.8597	78.7032	B=18.4, R=16.7	APM-N
93.8	194.8600	78.7032	B=19.1, R=17.0	APM-N
94.5	194.8596	78.7033		NED
97.7	194.8060	78.6523	B=21.6, R=20.0	APM-N
97.8	194.8259	78.7063	B=21.8, R=18.7	APM-N
98.2	194.8264	78.7064	B=21.8, R=18.8	APM-N
102.3	194.6714	78.6692	B1=19.1, B2=20.2, R1=18.8, R2=19.2	USNO-B1
102.7	194.6687	78.6703	B1=19.4, R1=19.3	USNO-B1
104.8	194.6765	78.6935	B=21.7, R=20.0	APM-N
105.6	194.6681	78.6684	B1=18.8, I=17.2	USNO-B1
105.9	194.6630	78.6708	B1=19.7, B2=19.2, R1=16.9, R2=18.7	USNO-B1
106.9	194.6631	78.6699	B2=18.2, R1=17.5	USNO-B1
107.0	194.7592	78.6508		NED
107.4	194.6694	78.6666	B1=20.0, I=17.9	USNO-B1
108.4	194.6600	78.6704	B1=19.7, B2=18.5	USNO-B1
109.2	194.6595	78.6700	B1=18.7, B2=18.3	USNO-B1
109.6	194.9217	78.6997		NED
109.9	194.6549	78.6863	B=21.5, R=20.0	APM-N
110.3	194.6506	78.6814	B2=21.9, R1=19.7	USNO-B1
110.4	194.6586	78.6694	I=16.2, R1=17.4	USNO-B1
110.8	194.7566	78.6502	R1=19.1, R2=19.8	USNO-B1
111.5	194.6532	78.6868	B1=20.9, I=18.4	USNO-B1
111.7	194.7842	78.7097		NED
112.9	194.6587	78.6675	h=13.3, j=14.1, k=13.2	2MASS
113.0	194.6584	78.6675	B=11.7, R=10.0	APM-N
113.1	194.6583	78.6675	B=12.4, R=11.2	APM-N
113.3	194.6616	78.6659	I=17.1, R1=19.0, R2=16.2	USNO-B1
113.4	194.6583	78.6675		NED
113.5	194.6535	78.6697	I=17.6, R1=18.2	USNO-B1
113.6	194.7545	78.6495	B=20.9, R=18.1	APM-N
114.3	194.9681	78.6801	B1=21.0, B2=21.4	USNO-B1
114.7	194.9687	78.6798	B1=20.4, B2=21.1	USNO-B1
114.7	194.6587	78.6662	B2=16.7, I=17.6, R1=16.6, R2=16.8	USNO-B1
115.5	194.8745	78.7086	B=21.8, R=19.6	APM-N
116.1	194.6602	78.6647	R1=17.7, R2=19.4	USNO-B1
116.1	194.9571	78.6925		NED
117.2	194.6495	78.6689	B1=18.6, R2=18.6	USNO-B1
118.9	194.6555	78.6648	B2=19.0, R1=18.4	USNO-B1
120.2	194.6480	78.6673	B1=18.9, I=16.9	USNO-B1
120.7	194.6539	78.6643	B1=18.3, B2=19.2, R2=18.2	USNO-B1
121.8	194.6508	78.6649	B2=19.1, I=18.3, R1=19.7, R2=17.3	USNO-B1
121.9	194.6458	78.6671	B1=19.1, B2=18.6, R1=17.7	USNO-B1
122.0	194.8794	78.6487	B=21.7, R=20.0	APM-N
124.8	194.6450	78.6654	B2=20.2, R2=18.3	USNO-B1
124.8	194.7315	78.6480	B1=21.0, R1=19.5, R2=19.7	USNO-B1
127.0	194.8758	78.7117		NED
127.1	194.9279	78.6528		NED
136.7	194.9694	78.6999	B=21.8, R=20.0	APM-N
139.6	194.6636	78.6526	B2=21.8, I=18.6, R2=19.5	USNO-B1
141.3	194.6762	78.6496	B=21.8, R=19.8	APM-N
141.7	194.7292	78.6428		NED
143.4	194.9540	78.7068	B=21.8, R=19.9	APM-N
143.4	194.7233	78.6431	B2=21.8, R1=19.8	USNO-B1
151.4	194.6946	78.6433		NED
151.6	194.5967	78.6714		NED
151.7	194.5925	78.6832	B=13.7, R=12.6	APM-N
152.3	194.6942	78.6433	B=20.3, R=18.7	APM-N
152.3	194.6942	78.6433	B=19.8, R=18.7	APM-N
153.1	194.9908	78.6564		NED
153.2	194.5921	78.6730	B=21.8, R=20.0	APM-N
154.1	194.5904	78.6831		NED
154.4	195.0221	78.6869		NED
154.5	194.9913	78.6565	B2=21.5, R1=19.7, R2=19.3	USNO-B1
154.7	194.5894	78.6851	R1=19.1, R2=19.3	USNO-B1
155.7	194.7969	78.6362	B=21.8, R=18.8	APM-N
156.8	194.9671	78.7094		NED
157.4	194.6538	78.7113	B=21.8, R=18.5	APM-N
158.1	195.0255	78.6883	B=19.2, R=20.0	APM-N
160.9	194.7664	78.7234	h=14.3, j=15.0, k=14.0	2MASS
161.0	194.7670	78.7234	B=16.5, R=15.0	APM-N
161.3	194.7662	78.7235	B=16.3, R=14.9	APM-N
161.3	194.6225	78.7053		NED
161.5	194.5948	78.6964	I=18.1, R1=19.9	USNO-B1
161.8	194.7640	78.7236	I=17.9, R1=15.0	USNO-B1
162.4	194.7667	78.7236		NED
167.1	194.7205	78.6362	I=18.9, R1=20.2	USNO-B1
167.3	194.5697	78.6787	B=21.8, R=18.5	APM-N
167.7	195.0344	78.6666	B=21.8, R=20.0	APM-N
168.1	194.5685	78.6785	I=18.5, R1=19.4	USNO-B1
170.9	194.6058	78.6529	B2=21.7, I=18.7	USNO-B1
171.6	194.5992	78.7036		NED
175.0	195.0521	78.6719		NED
175.9	194.7747	78.6309	B=21.4, R=20.0	APM-N
177.5	194.5563	78.6806		NED
178.1	194.8913	78.6328	B=21.7, R=20.0	APM-N
179.6	194.7840	78.7291	B=21.5, R=20.0	APM-N
180.1	195.0515	78.6658	B=17.6, R=15.9	APM-N
180.1	194.9592	78.7195	B=20.8, R=18.6	APM-N
180.2	194.9582	78.7197	I=18.4, R1=19.2	USNO-B1
181.3	194.5685	78.6606	B=21.4, R=19.5	APM-N
182.5	194.6987	78.7250		NED
183.4	195.0284	78.6531	B=21.7, R=20.0	APM-N
184.7	195.0547	78.6635	B=21.8, R=20.0	APM-N
186.3	194.6303	78.6409	B=21.4, R=20.0	APM-N
186.8	194.5759	78.6541	B=15.7, R=13.9	APM-N
188.2	194.6569	78.6362	B2=21.2, I=17.8, R1=18.6, R2=18.8	USNO-B1
188.6	194.5742	78.6539		NED
191.1	195.0543	78.6583	B=20.9, R=20.0	APM-N
193.4	194.5337	78.6803		NED
193.5	195.0259	78.7116	B=21.6, R=20.0	APM-N
196.3	195.0690	78.6973	B1=21.0, R2=20.7	USNO-B1
197.0	194.9610	78.7250	B=21.5, R=20.0	APM-N
197.4	195.0784	78.6919	B1=20.8, B2=21.5, R1=20.1	USNO-B1
198.5	195.0332	78.7120	B=21.7, R=20.0	APM-N
199.8	194.5987	78.7171	B=21.7, R=20.0	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