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TITLE:           GCN/OGLE NOTICE
NOTICE_DATE:     Fri 07 Sep 18 21:20:25 UT
NOTICE_TYPE:     OGLE Lensing Event
SRC_ID_NUM:      201801643
SRC_RA:          269.3940d {+17h 57m 35s} (J2000),
                 269.6912d {+17h 58m 46s} (current),
                 268.5952d {+17h 54m 23s} (1950)
SRC_DEC:         -29.6324d {-29d 37' 56"} (J2000),
                 -29.6332d {-29d 37' 59"} (current),
                 -29.6275d {-29d 37' 38"} (1950)
DISCOVERY_DATE:  18337 TJD;   219 DOY;   18/08/07 (yy/mm/dd)
DISCOVERY_TIME:  76825 SOD {21:20:25.00} UT
LEAD_TIME:       33.513 [days]
MAX_DATE:        18371 TJD;   253 DOY;   18/09/10 (yy/mm/dd)
MAX_TIME:        34732 SOD {09:38:52.79} UT
MAX_UNCERT:      0.700 [days]
CUSP_WIDTH:      9.75 +/- 0.56 [days]
u0:              0.37 +/- 0.05 [RingUnits]
MAX_MAG:         17.7 mag (estimated)
BASE_MAG:        18.84 +/- 0.00 [mag]
AMPLIFICATION:   2.80 +/- 0.39 factor
LC_URL:          http://www.astrouw.edu.pl/~ogle/ogle4/ews/blg-1643.html
SUN_POSTN:       166.37d {+11h 05m 30s}   +5.83d {+05d 49' 51"}
SUN_DIST:        104.44 [deg]   Sun_angle= -6.9 [hr] (East of Sun)
MOON_POSTN:      142.20d {+09h 28m 47s}  +16.31d {+16d 18' 48"}
MOON_DIST:       130.29 [deg]
GAL_COORDS:        0.73, -2.60 [deg] galactic lon,lat of the burst
ECL_COORDS:      269.47, -6.19 [deg] ecliptic lon,lat of the burst
COMMENTS:        OGLE Gravitational Lensing Event.