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TITLE:           GCN/OGLE NOTICE
NOTICE_DATE:     Tue 16 Apr 19 19:57:22 UT
NOTICE_TYPE:     OGLE Lensing Event
SRC_ID_NUM:      201900517
SRC_RA:          271.8550d {+18h 07m 25s} (J2000),
                 272.1554d {+18h 08m 37s} (current),
                 271.0728d {+18h 04m 17s} (1950)
SRC_DEC:         -26.9770d {-26d 58' 36"} (J2000),
                 -26.9733d {-26d 58' 23"} (current),
                 -26.9841d {-26d 59' 02"} (1950)
DISCOVERY_DATE:  18558 TJD;    75 DOY;   19/03/16 (yy/mm/dd)
DISCOVERY_TIME:  71842 SOD {19:57:22.00} UT
LEAD_TIME:       31.682 [days]
MAX_DATE:        18590 TJD;   107 DOY;   19/04/17 (yy/mm/dd)
MAX_TIME:        44409 SOD {12:20:09.59} UT
MAX_UNCERT:      0.800 [days]
CUSP_WIDTH:      6.41 +/- 0.88 [days]
u0:              0.69 +/- 0.03 [RingUnits]
MAX_MAG:         18.5 mag (estimated)
BASE_MAG:        19.03 +/- 0.00 [mag]
AMPLIFICATION:   1.68 +/- 0.05 factor
LC_URL:          http://www.astrouw.edu.pl/~ogle/ogle4/ews/blg-0517.html
SUN_POSTN:        24.62d {+01h 38m 29s}  +10.24d {+10d 14' 14"}
SUN_DIST:        114.57 [deg]   Sun_angle= 7.5 [hr] (West of Sun)
MOON_POSTN:      173.22d {+11h 32m 53s}   +7.66d {+07d 39' 43"}
MOON_DIST:       101.40 [deg]
GAL_COORDS:        4.11, -3.18 [deg] galactic lon,lat of the burst
ECL_COORDS:      271.66, -3.55 [deg] ecliptic lon,lat of the burst
COMMENTS:        OGLE Gravitational Lensing Event.