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TITLE:           GCN/OGLE NOTICE
NOTICE_DATE:     Tue 16 Apr 19 19:57:24 UT
NOTICE_TYPE:     OGLE Lensing Event
SRC_ID_NUM:      201900518
SRC_RA:          271.4815d {+18h 05m 56s} (J2000),
                 271.7870d {+18h 07m 09s} (current),
                 270.6861d {+18h 02m 45s} (1950)
SRC_DEC:         -29.0857d {-29d 05' 08"} (J2000),
                 -29.0827d {-29d 04' 57"} (current),
                 -29.0910d {-29d 05' 26"} (1950)
DISCOVERY_DATE:  18558 TJD;    75 DOY;   19/03/16 (yy/mm/dd)
DISCOVERY_TIME:  71844 SOD {19:57:24.00} UT
LEAD_TIME:       31.813 [days]
MAX_DATE:        18590 TJD;   107 DOY;   19/04/17 (yy/mm/dd)
MAX_TIME:        55728 SOD {15:28:48.00} UT
MAX_UNCERT:      0.140 [days]
CUSP_WIDTH:      4.83 +/- 0.20 [days]
u0:              0.17 +/- 0.02 [RingUnits]
MAX_MAG:         16.8 mag (estimated)
BASE_MAG:        18.70 +/- 0.00 [mag]
AMPLIFICATION:   5.81 +/- 0.80 factor
LC_URL:          http://www.astrouw.edu.pl/~ogle/ogle4/ews/blg-0518.html
SUN_POSTN:        24.62d {+01h 38m 29s}  +10.24d {+10d 14' 14"}
SUN_DIST:        114.84 [deg]   Sun_angle= 7.5 [hr] (West of Sun)
MOON_POSTN:      173.22d {+11h 32m 53s}   +7.66d {+07d 39' 43"}
MOON_DIST:       101.17 [deg]
GAL_COORDS:        2.11, -3.91 [deg] galactic lon,lat of the burst
ECL_COORDS:      271.30, -5.65 [deg] ecliptic lon,lat of the burst
COMMENTS:        OGLE Gravitational Lensing Event.