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TITLE:           GCN/OGLE NOTICE
NOTICE_DATE:     Sat 12 May 12 20:41:42 UT
NOTICE_TYPE:     OGLE Lensing Event
SRC_ID_NUM:      201200643
SRC_RA:          262.6103d {+17h 30m 26s} (J2000),
                 262.8054d {+17h 31m 13s} (current),
                 261.8165d {+17h 27m 16s} (1950)
SRC_DEC:         -29.0858d {-29d 05' 08"} (J2000),
                 -29.0945d {-29d 05' 39"} (current),
                 -29.0481d {-29d 02' 52"} (1950)
DISCOVERY_DATE:  16029 TJD;   103 DOY;   12/04/12 (yy/mm/dd)
DISCOVERY_TIME:  74502 SOD {20:41:42.00} UT
LEAD_TIME:       26.537 [days]
MAX_DATE:        16056 TJD;   130 DOY;   12/05/09 (yy/mm/dd)
MAX_TIME:        34473 SOD {09:34:33.60} UT
MAX_UNCERT:      0.140 [days]
CUSP_WIDTH:      5.12 +/- 0.31 [days]
u0:              0.30 +/- 0.01 [RingUnits]
MAX_MAG:         18.5 mag (estimated)
BASE_MAG:        19.80 +/- 0.00 [mag]
AMPLIFICATION:   3.41 +/- 0.10 factor
LC_URL:          http://www.astrouw.edu.pl/~ogle/ogle4/ews/blg-0643.html
SUN_POSTN:        50.10d {+03h 20m 24s}  +18.40d {+18d 23' 45"}
SUN_DIST:        148.34 [deg]   Sun_angle= 9.8 [hr] (West of Sun)
MOON_POSTN:      322.68d {+21h 30m 42s}   -9.30d {-09d 18' 00"}
MOON_DIST:        59.24 [deg]
GAL_COORDS:      358.10,  2.72 [deg] galactic lon,lat of the burst
ECL_COORDS:      263.51, -5.81 [deg] ecliptic lon,lat of the burst
COMMENTS:        OGLE Gravitational Lensing Event.