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TITLE:           GCN/OGLE NOTICE
NOTICE_DATE:     Sat 21 Apr 18 21:18:55 UT
NOTICE_TYPE:     OGLE Lensing Event
SRC_ID_NUM:      201800668
SRC_RA:          269.4326d {+17h 57m 44s} (J2000),
                 269.7242d {+17h 58m 54s} (current),
                 268.6324d {+17h 54m 32s} (1950)
SRC_DEC:         -29.8496d {-29d 50' 58"} (J2000),
                 -29.8503d {-29d 51' 00"} (current),
                 -29.8449d {-29d 50' 41"} (1950)
DISCOVERY_DATE:  18198 TJD;    80 DOY;   18/03/21 (yy/mm/dd)
DISCOVERY_TIME:  76735 SOD {21:18:55.00} UT
LEAD_TIME:       29.378 [days]
MAX_DATE:        18228 TJD;   110 DOY;   18/04/20 (yy/mm/dd)
MAX_TIME:        22982 SOD {06:23:02.39} UT
MAX_UNCERT:      0.010 [days]
CUSP_WIDTH:      1.21 +/- 0.09 [days]
u0:              0.25 +/- 0.04 [RingUnits]
MAX_MAG:         18.8 mag (estimated)
BASE_MAG:        20.30 +/- 0.00 [mag]
AMPLIFICATION:   3.99 +/- 0.68 factor
LC_URL:          http://www.astrouw.edu.pl/~ogle/ogle4/ews/blg-0668.html
SUN_POSTN:        29.56d {+01h 58m 14s}  +12.07d {+12d 04' 12"}
SUN_DIST:        121.74 [deg]   Sun_angle= 8.0 [hr] (West of Sun)
MOON_POSTN:      109.50d {+07h 17m 59s}  +20.18d {+20d 10' 40"}
MOON_DIST:       159.68 [deg]
GAL_COORDS:        0.56, -2.73 [deg] galactic lon,lat of the burst
ECL_COORDS:      269.50, -6.41 [deg] ecliptic lon,lat of the burst
COMMENTS:        OGLE Gravitational Lensing Event.