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TITLE:           GCN/OGLE NOTICE
NOTICE_DATE:     Sun 20 May 18 18:46:54 UT
NOTICE_TYPE:     OGLE Lensing Event
SRC_ID_NUM:      201800863
SRC_RA:          261.4224d {+17h 25m 41s} (J2000),
                 261.7121d {+17h 26m 51s} (current),
                 260.6314d {+17h 22m 32s} (1950)
SRC_DEC:         -28.7162d {-28d 42' 57"} (J2000),
                 -28.7311d {-28d 43' 51"} (current),
                 -28.6728d {-28d 40' 21"} (1950)
DISCOVERY_DATE:  18228 TJD;   110 DOY;   18/04/20 (yy/mm/dd)
DISCOVERY_TIME:  67614 SOD {18:46:54.00} UT
LEAD_TIME:       28.461 [days]
MAX_DATE:        18257 TJD;   139 DOY;   18/05/19 (yy/mm/dd)
MAX_TIME:        21081 SOD {05:51:21.59} UT
MAX_UNCERT:      3.090 [days]
CUSP_WIDTH:      20.61 +/- 4.90 [days]
u0:              0.64 +/- 0.03 [RingUnits]
MAX_MAG:         19.5 mag (estimated)
BASE_MAG:        20.15 +/- 0.00 [mag]
AMPLIFICATION:   1.78 +/- 0.06 factor
LC_URL:          http://www.astrouw.edu.pl/~ogle/ogle4/ews/blg-0863.html
SUN_POSTN:        57.51d {+03h 50m 03s}  +20.09d {+20d 05' 07"}
SUN_DIST:        156.39 [deg]   Sun_angle= 10.4 [hr] (West of Sun)
MOON_POSTN:      134.19d {+08h 56m 46s}  +17.45d {+17d 26' 56"}
MOON_DIST:       130.82 [deg]
GAL_COORDS:      357.83,  3.79 [deg] galactic lon,lat of the burst
ECL_COORDS:      262.45, -5.50 [deg] ecliptic lon,lat of the burst
COMMENTS:        OGLE Gravitational Lensing Event.