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TITLE:           GCN/OGLE NOTICE
NOTICE_DATE:     Sun 21 Apr 19 19:42:11 UT
NOTICE_TYPE:     OGLE Lensing Event
SRC_ID_NUM:      201900539
SRC_RA:          267.7863d {+17h 51m 09s} (J2000),
                 268.1053d {+17h 52m 25s} (current),
                 266.9566d {+17h 47m 50s} (1950)
SRC_DEC:         -34.2300d {-34d 13' 47"} (J2000),
                 -34.2338d {-34d 14' 01"} (current),
                 -34.2172d {-34d 13' 01"} (1950)
DISCOVERY_DATE:  18563 TJD;    80 DOY;   19/03/21 (yy/mm/dd)
DISCOVERY_TIME:  70931 SOD {19:42:11.00} UT
LEAD_TIME:       33.530 [days]
MAX_DATE:        18597 TJD;   114 DOY;   19/04/24 (yy/mm/dd)
MAX_TIME:        30326 SOD {08:25:26.39} UT
MAX_UNCERT:      3.740 [days]
CUSP_WIDTH:      13.44 +/- 3.30 [days]
u0:              0.52 +/- 0.13 [RingUnits]
MAX_MAG:         19.1 mag (estimated)
BASE_MAG:        19.91 +/- 0.00 [mag]
AMPLIFICATION:   2.08 +/- 0.43 factor
LC_URL:          http://www.astrouw.edu.pl/~ogle/ogle4/ews/blg-0539.html
SUN_POSTN:        29.27d {+01h 57m 04s}  +11.97d {+11d 57' 56"}
SUN_DIST:        122.35 [deg]   Sun_angle= 8.1 [hr] (West of Sun)
MOON_POSTN:      240.87d {+16h 03m 30s}  -16.92d {-16d 55' 10"}
MOON_DIST:        29.89 [deg]
GAL_COORDS:      356.07, -3.74 [deg] galactic lon,lat of the burst
ECL_COORDS:      268.14,-10.81 [deg] ecliptic lon,lat of the burst
COMMENTS:        OGLE Gravitational Lensing Event.