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TITLE:           GCN/OGLE NOTICE
NOTICE_DATE:     Fri 20 Apr 18 12:30:28 UT
NOTICE_TYPE:     OGLE Lensing Event
SRC_ID_NUM:      201800648
SRC_RA:          273.8558d {+18h 15m 25s} (J2000),
                 274.1353d {+18h 16m 32s} (current),
                 273.0887d {+18h 12m 21s} (1950)
SRC_DEC:         -24.4872d {-24d 29' 13"} (J2000),
                 -24.4801d {-24d 28' 47"} (current),
                 -24.5041d {-24d 30' 14"} (1950)
DISCOVERY_DATE:  18197 TJD;    79 DOY;   18/03/20 (yy/mm/dd)
DISCOVERY_TIME:  45028 SOD {12:30:28.00} UT
LEAD_TIME:       60.568 [days]
MAX_DATE:        18258 TJD;   140 DOY;   18/05/20 (yy/mm/dd)
MAX_TIME:        7689 SOD {02:08:09.60} UT
MAX_UNCERT:      13.150 [days]
CUSP_WIDTH:      38.83 +/- 5.83 [days]
u0:              0.47 +/- 0.39 [RingUnits]
MAX_MAG:         17.5 mag (estimated)
BASE_MAG:        18.38 +/- 0.00 [mag]
AMPLIFICATION:   2.26 +/- 1.59 factor
LC_URL:          http://www.astrouw.edu.pl/~ogle/ogle4/ews/blg-0648.html
SUN_POSTN:        28.28d {+01h 53m 07s}  +11.61d {+11d 36' 20"}
SUN_DIST:        116.62 [deg]   Sun_angle= 7.6 [hr] (West of Sun)
MOON_POSTN:       88.74d {+05h 54m 57s}  +19.96d {+19d 57' 22"}
MOON_DIST:       173.26 [deg]
GAL_COORDS:        7.17, -3.57 [deg] galactic lon,lat of the burst
ECL_COORDS:      273.51, -1.09 [deg] ecliptic lon,lat of the burst
COMMENTS:        OGLE Gravitational Lensing Event.