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TITLE:           GCN/OGLE NOTICE
NOTICE_DATE:     Thu 20 Jul 17 19:13:51 UT
NOTICE_TYPE:     OGLE Lensing Event
SRC_ID_NUM:      201701391
SRC_RA:          268.5074d {+17h 54m 02s} (J2000),
                 268.7839d {+17h 55m 08s} (current),
                 267.7161d {+17h 50m 52s} (1950)
SRC_DEC:         -28.4636d {-28d 27' 48"} (J2000),
                 -28.4659d {-28d 27' 56"} (current),
                 -28.4544d {-28d 27' 15"} (1950)
DISCOVERY_DATE:  17924 TJD;   171 DOY;   17/06/20 (yy/mm/dd)
DISCOVERY_TIME:  69231 SOD {19:13:51.00} UT
LEAD_TIME:       29.029 [days]
MAX_DATE:        17953 TJD;   200 DOY;   17/07/19 (yy/mm/dd)
MAX_TIME:        71712 SOD {19:55:12.00} UT
MAX_UNCERT:      0.270 [days]
CUSP_WIDTH:      5.48 +/- 0.49 [days]
u0:              0.49 +/- 0.01 [RingUnits]
MAX_MAG:         19.5 mag (estimated)
BASE_MAG:        20.35 +/- 0.00 [mag]
AMPLIFICATION:   2.18 +/- 0.04 factor
LC_URL:          http://www.astrouw.edu.pl/~ogle/ogle4/ews/blg-1391.html
SUN_POSTN:       120.36d {+08h 01m 26s}  +20.51d {+20d 30' 30"}
SUN_DIST:        150.28 [deg]   Sun_angle= -9.9 [hr] (East of Sun)
MOON_POSTN:       81.48d {+05h 25m 55s}  +18.65d {+18d 38' 46"}
MOON_DIST:       168.12 [deg]
GAL_COORDS:        1.35, -1.34 [deg] galactic lon,lat of the burst
ECL_COORDS:      268.68, -5.03 [deg] ecliptic lon,lat of the burst
COMMENTS:        OGLE Gravitational Lensing Event.