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TITLE:           GCN/OGLE NOTICE
NOTICE_DATE:     Tue 16 Apr 19 19:57:14 UT
NOTICE_TYPE:     OGLE Lensing Event
SRC_ID_NUM:      201900513
SRC_RA:          268.5816d {+17h 54m 20s} (J2000),
                 268.9000d {+17h 55m 36s} (current),
                 267.7529d {+17h 51m 01s} (1950)
SRC_DEC:         -34.0754d {-34d 04' 30"} (J2000),
                 -34.0777d {-34d 04' 39"} (current),
                 -34.0665d {-34d 03' 58"} (1950)
DISCOVERY_DATE:  18558 TJD;    75 DOY;   19/03/16 (yy/mm/dd)
DISCOVERY_TIME:  71834 SOD {19:57:14.00} UT
LEAD_TIME:       33.225 [days]
MAX_DATE:        18592 TJD;   109 DOY;   19/04/19 (yy/mm/dd)
MAX_TIME:        4838 SOD {01:20:38.39} UT
MAX_UNCERT:      2.080 [days]
CUSP_WIDTH:      12.72 +/- 1.77 [days]
u0:              0.48 +/- 0.08 [RingUnits]
MAX_MAG:         18.8 mag (estimated)
BASE_MAG:        19.71 +/- 0.00 [mag]
AMPLIFICATION:   2.23 +/- 0.34 factor
LC_URL:          http://www.astrouw.edu.pl/~ogle/ogle4/ews/blg-0513.html
SUN_POSTN:        24.62d {+01h 38m 29s}  +10.24d {+10d 14' 14"}
SUN_DIST:        116.96 [deg]   Sun_angle= 7.7 [hr] (West of Sun)
MOON_POSTN:      173.22d {+11h 32m 53s}   +7.66d {+07d 39' 45"}
MOON_DIST:        98.97 [deg]
GAL_COORDS:      356.53, -4.23 [deg] galactic lon,lat of the burst
ECL_COORDS:      268.80,-10.64 [deg] ecliptic lon,lat of the burst
COMMENTS:        OGLE Gravitational Lensing Event.