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TITLE:           GCN/OGLE NOTICE
NOTICE_DATE:     Fri 20 Apr 18 12:30:14 UT
NOTICE_TYPE:     OGLE Lensing Event
SRC_ID_NUM:      201800641
SRC_RA:          270.0815d {+18h 00m 20s} (J2000),
                 270.3800d {+18h 01m 31s} (current),
                 269.2623d {+17h 57m 03s} (1950)
SRC_DEC:         -32.6967d {-32d 41' 47"} (J2000),
                 -32.6963d {-32d 41' 46"} (current),
                 -32.6951d {-32d 41' 41"} (1950)
DISCOVERY_DATE:  18197 TJD;    79 DOY;   18/03/20 (yy/mm/dd)
DISCOVERY_TIME:  45014 SOD {12:30:14.00} UT
LEAD_TIME:       27.937 [days]
MAX_DATE:        18225 TJD;   107 DOY;   18/04/17 (yy/mm/dd)
MAX_TIME:        39571 SOD {10:59:31.20} UT
MAX_UNCERT:      0.050 [days]
CUSP_WIDTH:      3.89 +/- 0.14 [days]
u0:              0.21 +/- 0.01 [RingUnits]
MAX_MAG:         18.0 mag (estimated)
BASE_MAG:        19.72 +/- 0.00 [mag]
AMPLIFICATION:   4.77 +/- 0.23 factor
LC_URL:          http://www.astrouw.edu.pl/~ogle/ogle4/ews/blg-0641.html
SUN_POSTN:        28.28d {+01h 53m 07s}  +11.61d {+11d 36' 20"}
SUN_DIST:        119.63 [deg]   Sun_angle= 7.9 [hr] (West of Sun)
MOON_POSTN:       88.74d {+05h 54m 57s}  +19.96d {+19d 57' 21"}
MOON_DIST:       167.18 [deg]
GAL_COORDS:      358.36, -4.63 [deg] galactic lon,lat of the burst
ECL_COORDS:      270.07, -9.26 [deg] ecliptic lon,lat of the burst
COMMENTS:        OGLE Gravitational Lensing Event.