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TITLE:           GCN/OGLE NOTICE
NOTICE_DATE:     Fri 10 May 19 20:25:50 UT
NOTICE_TYPE:     OGLE Lensing Event
SRC_ID_NUM:      201900689
SRC_RA:          271.0596d {+18h 04m 14s} (J2000),
                 271.3674d {+18h 05m 28s} (current),
                 270.2611d {+18h 01m 03s} (1950)
SRC_DEC:         -29.5707d {-29d 34' 14"} (J2000),
                 -29.5684d {-29d 34' 05"} (current),
                 -29.5739d {-29d 34' 25"} (1950)
DISCOVERY_DATE:  18583 TJD;   100 DOY;   19/04/10 (yy/mm/dd)
DISCOVERY_TIME:  73550 SOD {20:25:50.00} UT
LEAD_TIME:       40.238 [days]
MAX_DATE:        18624 TJD;   141 DOY;   19/05/21 (yy/mm/dd)
MAX_TIME:        7689 SOD {02:08:09.60} UT
MAX_UNCERT:      3.770 [days]
CUSP_WIDTH:      15.90 +/- 1.73 [days]
u0:              0.46 +/- 0.25 [RingUnits]
MAX_MAG:         17.5 mag (estimated)
BASE_MAG:        18.44 +/- 0.00 [mag]
AMPLIFICATION:   2.31 +/- 1.09 factor
LC_URL:          http://www.astrouw.edu.pl/~ogle/ogle4/ews/blg-0689.html
SUN_POSTN:        47.45d {+03h 09m 48s}  +17.71d {+17d 42' 39"}
SUN_DIST:        138.33 [deg]   Sun_angle= 9.1 [hr] (West of Sun)
MOON_POSTN:      126.85d {+08h 27m 24s}  +20.50d {+20d 29' 43"}
MOON_DIST:       146.74 [deg]
GAL_COORDS:        1.50, -3.83 [deg] galactic lon,lat of the burst
ECL_COORDS:      270.93, -6.13 [deg] ecliptic lon,lat of the burst
COMMENTS:        OGLE Gravitational Lensing Event.