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TITLE:           GCN/OGLE NOTICE
NOTICE_DATE:     Mon 21 May 18 19:13:05 UT
NOTICE_TYPE:     OGLE Lensing Event
SRC_ID_NUM:      201800869
SRC_RA:          270.1195d {+18h 00m 29s} (J2000),
                 270.4156d {+18h 01m 40s} (current),
                 269.3108d {+17h 57m 15s} (1950)
SRC_DEC:         -31.1431d {-31d 08' 34"} (J2000),
                 -31.1426d {-31d 08' 32"} (current),
                 -31.1417d {-31d 08' 29"} (1950)
DISCOVERY_DATE:  18229 TJD;   111 DOY;   18/04/21 (yy/mm/dd)
DISCOVERY_TIME:  69185 SOD {19:13:05.00} UT
LEAD_TIME:       30.251 [days]
MAX_DATE:        18260 TJD;   142 DOY;   18/05/22 (yy/mm/dd)
MAX_TIME:        4492 SOD {01:14:52.80} UT
MAX_UNCERT:      0.950 [days]
CUSP_WIDTH:      5.34 +/- 0.74 [days]
u0:              0.80 +/- 0.05 [RingUnits]
MAX_MAG:         17.7 mag (estimated)
BASE_MAG:        18.15 +/- 0.00 [mag]
AMPLIFICATION:   1.52 +/- 0.06 factor
LC_URL:          http://www.astrouw.edu.pl/~ogle/ogle4/ews/blg-0869.html
SUN_POSTN:        58.53d {+03h 54m 08s}  +20.29d {+20d 17' 30"}
SUN_DIST:        149.43 [deg]   Sun_angle= 9.9 [hr] (West of Sun)
MOON_POSTN:      148.79d {+09h 55m 10s}  +14.21d {+14d 12' 26"}
MOON_DIST:       124.19 [deg]
GAL_COORDS:      359.73, -3.89 [deg] galactic lon,lat of the burst
ECL_COORDS:      270.10, -7.70 [deg] ecliptic lon,lat of the burst
COMMENTS:        OGLE Gravitational Lensing Event.