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TITLE:           GCN/OGLE NOTICE
NOTICE_DATE:     Tue 24 Apr 12 19:58:24 UT
NOTICE_TYPE:     OGLE Lensing Event
SRC_ID_NUM:      201200521
SRC_RA:          271.4032d {+18h 05m 37s} (J2000),
                 271.5927d {+18h 06m 22s} (current),
                 270.6283d {+18h 02m 31s} (1950)
SRC_DEC:         -25.7632d {-25d 45' 47"} (J2000),
                 -25.7614d {-25d 45' 40"} (current),
                 -25.7681d {-25d 46' 04"} (1950)
DISCOVERY_DATE:  16010 TJD;    84 DOY;   12/03/24 (yy/mm/dd)
DISCOVERY_TIME:  71904 SOD {19:58:24.00} UT
LEAD_TIME:       35.190 [days]
MAX_DATE:        16046 TJD;   120 DOY;   12/04/29 (yy/mm/dd)
MAX_TIME:        1900 SOD {00:31:40.79} UT
MAX_UNCERT:      2.680 [days]
CUSP_WIDTH:      18.30 +/- 1.54 [days]
u0:              0.81 +/- 0.06 [RingUnits]
MAX_MAG:         18.2 mag (estimated)
BASE_MAG:        18.69 +/- 0.00 [mag]
AMPLIFICATION:   1.51 +/- 0.07 factor
LC_URL:          http://www.astrouw.edu.pl/~ogle/ogle4/ews/blg-0521.html
SUN_POSTN:        32.75d {+02h 10m 59s}  +13.20d {+13d 11' 50"}
SUN_DIST:        123.56 [deg]   Sun_angle= 8.1 [hr] (West of Sun)
MOON_POSTN:       71.85d {+04h 47m 25s}  +21.62d {+21d 37' 08"}
MOON_DIST:       161.47 [deg]
GAL_COORDS:        4.98, -2.24 [deg] galactic lon,lat of the burst
ECL_COORDS:      271.26, -2.33 [deg] ecliptic lon,lat of the burst
COMMENTS:        OGLE Gravitational Lensing Event.