//////////////////////////////////////////////////////////////////////
TITLE:           GCN/OGLE NOTICE
NOTICE_DATE:     Fri 20 Apr 18 18:45:05 UT
NOTICE_TYPE:     OGLE Lensing Event
SRC_ID_NUM:      201800657
SRC_RA:          270.0500d {+18h 00m 12s} (J2000),
                 270.3382d {+18h 01m 21s} (current),
                 269.2591d {+17h 57m 02s} (1950)
SRC_DEC:         -28.3696d {-28d 22' 10"} (J2000),
                 -28.3693d {-28d 22' 08"} (current),
                 -28.3679d {-28d 22' 04"} (1950)
DISCOVERY_DATE:  18197 TJD;    79 DOY;   18/03/20 (yy/mm/dd)
DISCOVERY_TIME:  67505 SOD {18:45:05.00} UT
LEAD_TIME:       34.152 [days]
MAX_DATE:        18231 TJD;   113 DOY;   18/04/23 (yy/mm/dd)
MAX_TIME:        80611 SOD {22:23:31.20} UT
MAX_UNCERT:      0.630 [days]
CUSP_WIDTH:      10.77 +/- 0.55 [days]
u0:              0.45 +/- 0.03 [RingUnits]
MAX_MAG:         17.5 mag (estimated)
BASE_MAG:        18.43 +/- 0.00 [mag]
AMPLIFICATION:   2.36 +/- 0.14 factor
LC_URL:          http://www.astrouw.edu.pl/~ogle/ogle4/ews/blg-0657.html
SUN_POSTN:        28.52d {+01h 54m 05s}  +11.69d {+11d 41' 40"}
SUN_DIST:        120.22 [deg]   Sun_angle= 7.9 [hr] (West of Sun)
MOON_POSTN:       92.68d {+06h 10m 44s}  +20.18d {+20d 11' 05"}
MOON_DIST:       171.54 [deg]
GAL_COORDS:        2.11, -2.47 [deg] galactic lon,lat of the burst
ECL_COORDS:      270.04, -4.93 [deg] ecliptic lon,lat of the burst
COMMENTS:        OGLE Gravitational Lensing Event.