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TITLE:           GCN/OGLE NOTICE
NOTICE_DATE:     Sun 21 Apr 19 19:42:19 UT
NOTICE_TYPE:     OGLE Lensing Event
SRC_ID_NUM:      201900543
SRC_RA:          272.6579d {+18h 10m 38s} (J2000),
                 272.9562d {+18h 11m 49s} (current),
                 271.8819d {+18h 07m 32s} (1950)
SRC_DEC:         -25.9597d {-25d 57' 34"} (J2000),
                 -25.9545d {-25d 57' 15"} (current),
                 -25.9707d {-25d 58' 14"} (1950)
DISCOVERY_DATE:  18563 TJD;    80 DOY;   19/03/21 (yy/mm/dd)
DISCOVERY_TIME:  70939 SOD {19:42:19.00} UT
LEAD_TIME:       44.975 [days]
MAX_DATE:        18608 TJD;   125 DOY;   19/05/05 (yy/mm/dd)
MAX_TIME:        68774 SOD {19:06:14.40} UT
MAX_UNCERT:      9.600 [days]
CUSP_WIDTH:      20.66 +/- 3.51 [days]
u0:              1.68 +/- 0.17 [RingUnits]
MAX_MAG:         16.9 mag (estimated)
BASE_MAG:        17.04 +/- 0.00 [mag]
AMPLIFICATION:   1.09 +/- 0.02 factor
LC_URL:          http://www.astrouw.edu.pl/~ogle/ogle4/ews/blg-0543.html
SUN_POSTN:        29.27d {+01h 57m 04s}  +11.97d {+11d 57' 56"}
SUN_DIST:        118.73 [deg]   Sun_angle= 7.8 [hr] (West of Sun)
MOON_POSTN:      240.88d {+16h 03m 30s}  -16.92d {-16d 55' 11"}
MOON_DIST:        31.10 [deg]
GAL_COORDS:        5.35, -3.32 [deg] galactic lon,lat of the burst
ECL_COORDS:      272.39, -2.54 [deg] ecliptic lon,lat of the burst
COMMENTS:        OGLE Gravitational Lensing Event.