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TITLE:           GCN/OGLE NOTICE
NOTICE_DATE:     Fri 20 Apr 18 18:45:13 UT
NOTICE_TYPE:     OGLE Lensing Event
SRC_ID_NUM:      201800661
SRC_RA:          267.9179d {+17h 51m 40s} (J2000),
                 268.1963d {+17h 52m 47s} (current),
                 267.1538d {+17h 48m 37s} (1950)
SRC_DEC:         -23.9550d {-23d 57' 17"} (J2000),
                 -23.9584d {-23d 57' 29"} (current),
                 -23.9430d {-23d 56' 34"} (1950)
DISCOVERY_DATE:  18197 TJD;    79 DOY;   18/03/20 (yy/mm/dd)
DISCOVERY_TIME:  67513 SOD {18:45:13.00} UT
LEAD_TIME:       25.958 [days]
MAX_DATE:        18223 TJD;   105 DOY;   18/04/15 (yy/mm/dd)
MAX_TIME:        63849 SOD {17:44:09.60} UT
MAX_UNCERT:      0.400 [days]
CUSP_WIDTH:      7.34 +/- 0.62 [days]
u0:              0.82 +/- 0.02 [RingUnits]
MAX_MAG:         18.5 mag (estimated)
BASE_MAG:        18.92 +/- 0.00 [mag]
AMPLIFICATION:   1.49 +/- 0.02 factor
LC_URL:          http://www.astrouw.edu.pl/~ogle/ogle4/ews/blg-0661.html
SUN_POSTN:        28.52d {+01h 54m 05s}  +11.69d {+11d 41' 40"}
SUN_DIST:        122.29 [deg]   Sun_angle= 8.0 [hr] (West of Sun)
MOON_POSTN:       92.68d {+06h 10m 44s}  +20.18d {+20d 11' 05"}
MOON_DIST:       174.38 [deg]
GAL_COORDS:        4.97,  1.41 [deg] galactic lon,lat of the burst
ECL_COORDS:      268.10, -0.53 [deg] ecliptic lon,lat of the burst
COMMENTS:        OGLE Gravitational Lensing Event.