//////////////////////////////////////////////////////////////////////
TITLE:           GCN/OGLE NOTICE
NOTICE_DATE:     Sat 21 Apr 18 21:18:57 UT
NOTICE_TYPE:     OGLE Lensing Event
SRC_ID_NUM:      201800669
SRC_RA:          271.1563d {+18h 04m 38s} (J2000),
                 271.4411d {+18h 05m 46s} (current),
                 270.3749d {+18h 01m 30s} (1950)
SRC_DEC:         -26.8421d {-26d 50' 31"} (J2000),
                 -26.8398d {-26d 50' 22"} (current),
                 -26.8458d {-26d 50' 44"} (1950)
DISCOVERY_DATE:  18198 TJD;    80 DOY;   18/03/21 (yy/mm/dd)
DISCOVERY_TIME:  76737 SOD {21:18:57.00} UT
LEAD_TIME:       28.865 [days]
MAX_DATE:        18227 TJD;   109 DOY;   18/04/19 (yy/mm/dd)
MAX_TIME:        65059 SOD {18:04:19.20} UT
MAX_UNCERT:      1.010 [days]
CUSP_WIDTH:      8.17 +/- 0.79 [days]
u0:              1.68 +/- 0.02 [RingUnits]
MAX_MAG:         17.6 mag (estimated)
BASE_MAG:        17.72 +/- 0.00 [mag]
AMPLIFICATION:   1.09 +/- 0.00 factor
LC_URL:          http://www.astrouw.edu.pl/~ogle/ogle4/ews/blg-0669.html
SUN_POSTN:        29.56d {+01h 58m 14s}  +12.07d {+12d 04' 12"}
SUN_DIST:        120.37 [deg]   Sun_angle= 7.9 [hr] (West of Sun)
MOON_POSTN:      109.50d {+07h 17m 59s}  +20.18d {+20d 10' 40"}
MOON_DIST:       162.18 [deg]
GAL_COORDS:        3.93, -2.57 [deg] galactic lon,lat of the burst
ECL_COORDS:      271.03, -3.41 [deg] ecliptic lon,lat of the burst
COMMENTS:        OGLE Gravitational Lensing Event.