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TITLE:           GCN/OGLE NOTICE
NOTICE_DATE:     Fri 18 May 18 18:44:52 UT
NOTICE_TYPE:     OGLE Lensing Event
SRC_ID_NUM:      201800839
SRC_RA:          269.5145d {+17h 58m 03s} (J2000),
                 269.8041d {+17h 59m 13s} (current),
                 268.7232d {+17h 54m 54s} (1950)
SRC_DEC:         -28.4514d {-28d 27' 04"} (J2000),
                 -28.4520d {-28d 27' 06"} (current),
                 -28.4471d {-28d 26' 49"} (1950)
DISCOVERY_DATE:  18226 TJD;   108 DOY;   18/04/18 (yy/mm/dd)
DISCOVERY_TIME:  67492 SOD {18:44:52.00} UT
LEAD_TIME:       30.102 [days]
MAX_DATE:        18256 TJD;   138 DOY;   18/05/18 (yy/mm/dd)
MAX_TIME:        76291 SOD {21:11:31.19} UT
MAX_UNCERT:      0.020 [days]
CUSP_WIDTH:      0.53 +/- 0.05 [days]
u0:              0.57 +/- 0.01 [RingUnits]
MAX_MAG:         17.8 mag (estimated)
BASE_MAG:        18.49 +/- 0.00 [mag]
AMPLIFICATION:   1.94 +/- 0.02 factor
LC_URL:          http://www.astrouw.edu.pl/~ogle/ogle4/ews/blg-0839.html
SUN_POSTN:        55.51d {+03h 42m 03s}  +19.66d {+19d 39' 45"}
SUN_DIST:        147.60 [deg]   Sun_angle= 9.7 [hr] (West of Sun)
MOON_POSTN:      103.66d {+06h 54m 38s}  +20.53d {+20d 31' 53"}
MOON_DIST:       165.13 [deg]
GAL_COORDS:        1.81, -2.10 [deg] galactic lon,lat of the burst
ECL_COORDS:      269.57, -5.01 [deg] ecliptic lon,lat of the burst
COMMENTS:        OGLE Gravitational Lensing Event.