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TITLE:           GCN/OGLE NOTICE
NOTICE_DATE:     Wed 23 May 18 20:08:05 UT
NOTICE_TYPE:     OGLE Lensing Event
SRC_ID_NUM:      201800891
SRC_RA:          263.1997d {+17h 32m 48s} (J2000),
                 263.4884d {+17h 33m 57s} (current),
                 262.4118d {+17h 29m 39s} (1950)
SRC_DEC:         -28.1069d {-28d 06' 24"} (J2000),
                 -28.1187d {-28d 07' 06"} (current),
                 -28.0720d {-28d 04' 18"} (1950)
DISCOVERY_DATE:  18231 TJD;   113 DOY;   18/04/23 (yy/mm/dd)
DISCOVERY_TIME:  72485 SOD {20:08:05.00} UT
LEAD_TIME:       39.016 [days]
MAX_DATE:        18270 TJD;   152 DOY;   18/06/01 (yy/mm/dd)
MAX_TIME:        73871 SOD {20:31:11.99} UT
MAX_UNCERT:      8.870 [days]
CUSP_WIDTH:      75.18 +/- 9.38 [days]
u0:              0.63 +/- 0.03 [RingUnits]
MAX_MAG:         18.9 mag (estimated)
BASE_MAG:        19.56 +/- 0.00 [mag]
AMPLIFICATION:   1.81 +/- 0.07 factor
LC_URL:          http://www.astrouw.edu.pl/~ogle/ogle4/ews/blg-0891.html
SUN_POSTN:        60.58d {+04h 02m 20s}  +20.69d {+20d 41' 12"}
SUN_DIST:        157.90 [deg]   Sun_angle= 10.5 [hr] (West of Sun)
MOON_POSTN:      175.91d {+11h 43m 39s}   +5.72d {+05d 43' 25"}
MOON_DIST:        90.56 [deg]
GAL_COORDS:      359.20,  2.83 [deg] galactic lon,lat of the burst
ECL_COORDS:      263.98, -4.81 [deg] ecliptic lon,lat of the burst
COMMENTS:        OGLE Gravitational Lensing Event.