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TITLE:           GCN/OGLE NOTICE
NOTICE_DATE:     Fri 18 May 18 07:56:00 UT
NOTICE_TYPE:     OGLE Lensing Event
SRC_ID_NUM:      201800831
SRC_RA:          268.5729d {+17h 54m 17s} (J2000),
                 268.8708d {+17h 55m 29s} (current),
                 267.7589d {+17h 51m 02s} (1950)
SRC_DEC:         -31.9444d {-31d 56' 39"} (J2000),
                 -31.9467d {-31d 56' 47"} (current),
                 -31.9355d {-31d 56' 07"} (1950)
DISCOVERY_DATE:  18226 TJD;   108 DOY;   18/04/18 (yy/mm/dd)
DISCOVERY_TIME:  28560 SOD {07:56:00.00} UT
LEAD_TIME:       29.199 [days]
MAX_DATE:        18255 TJD;   137 DOY;   18/05/17 (yy/mm/dd)
MAX_TIME:        45791 SOD {12:43:11.99} UT
MAX_UNCERT:      0.410 [days]
CUSP_WIDTH:      3.17 +/- 0.44 [days]
u0:              1.04 +/- 0.02 [RingUnits]
MAX_MAG:         18.3 mag (estimated)
BASE_MAG:        18.63 +/- 0.00 [mag]
AMPLIFICATION:   1.31 +/- 0.01 factor
LC_URL:          http://www.astrouw.edu.pl/~ogle/ogle4/ews/blg-0831.html
SUN_POSTN:        55.07d {+03h 40m 16s}  +19.56d {+19d 33' 51"}
SUN_DIST:        147.31 [deg]   Sun_angle= 9.7 [hr] (West of Sun)
MOON_POSTN:       96.61d {+06h 26m 26s}  +20.50d {+20d 29' 56"}
MOON_DIST:       166.62 [deg]
GAL_COORDS:      358.37, -3.15 [deg] galactic lon,lat of the burst
ECL_COORDS:      268.78, -8.51 [deg] ecliptic lon,lat of the burst
COMMENTS:        OGLE Gravitational Lensing Event.