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TITLE:           GCN/OGLE NOTICE
NOTICE_DATE:     Mon 09 Apr 18 13:54:30 UT
NOTICE_TYPE:     OGLE Lensing Event
SRC_ID_NUM:      201800539
SRC_RA:          261.1258d {+17h 24m 30s} (J2000),
                 261.4143d {+17h 25m 39s} (current),
                 260.3330d {+17h 21m 20s} (1950)
SRC_DEC:         -29.0135d {-29d 00' 48"} (J2000),
                 -29.0289d {-29d 01' 43"} (current),
                 -28.9686d {-28d 58' 06"} (1950)
DISCOVERY_DATE:  18186 TJD;    68 DOY;   18/03/09 (yy/mm/dd)
DISCOVERY_TIME:  50070 SOD {13:54:30.00} UT
LEAD_TIME:       36.802 [days]
MAX_DATE:        18223 TJD;   105 DOY;   18/04/15 (yy/mm/dd)
MAX_TIME:        33004 SOD {09:10:04.80} UT
MAX_UNCERT:      13.170 [days]
CUSP_WIDTH:      15.75 +/- 5.52 [days]
u0:              1.07 +/- 0.46 [RingUnits]
MAX_MAG:         18.1 mag (estimated)
BASE_MAG:        18.39 +/- 0.00 [mag]
AMPLIFICATION:   1.29 +/- 0.27 factor
LC_URL:          http://www.astrouw.edu.pl/~ogle/ogle4/ews/blg-0539.html
SUN_POSTN:        18.16d {+01h 12m 38s}   +7.69d {+07d 41' 36"}
SUN_DIST:        117.06 [deg]   Sun_angle= 7.8 [hr] (West of Sun)
MOON_POSTN:      305.49d {+20h 21m 59s}  -18.58d {-18d 34' 31"}
MOON_DIST:        41.41 [deg]
GAL_COORDS:      357.44,  3.84 [deg] galactic lon,lat of the burst
ECL_COORDS:      262.21, -5.81 [deg] ecliptic lon,lat of the burst
COMMENTS:        OGLE Gravitational Lensing Event.