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TITLE:           GCN/OGLE NOTICE
NOTICE_DATE:     Sat 12 May 12 20:41:30 UT
NOTICE_TYPE:     OGLE Lensing Event
SRC_ID_NUM:      201200637
SRC_RA:          273.2322d {+18h 12m 56s} (J2000),
                 273.4249d {+18h 13m 42s} (current),
                 272.4474d {+18h 09m 47s} (1950)
SRC_DEC:         -27.4189d {-27d 25' 07"} (J2000),
                 -27.4149d {-27d 24' 53"} (current),
                 -27.4327d {-27d 25' 57"} (1950)
DISCOVERY_DATE:  16029 TJD;   103 DOY;   12/04/12 (yy/mm/dd)
DISCOVERY_TIME:  74490 SOD {20:41:30.00} UT
LEAD_TIME:       73.867 [days]
MAX_DATE:        16103 TJD;   177 DOY;   12/06/25 (yy/mm/dd)
MAX_TIME:        62985 SOD {17:29:45.59} UT
MAX_UNCERT:      31.730 [days]
CUSP_WIDTH:      18.37 +/- 6.12 [days]
u0:              0.49 +/- 5.76 [RingUnits]
MAX_MAG:         16.1 mag (estimated)
BASE_MAG:        16.97 +/- 0.00 [mag]
AMPLIFICATION:   2.19 +/- 21.42 factor
LC_URL:          http://www.astrouw.edu.pl/~ogle/ogle4/ews/blg-0637.html
SUN_POSTN:        50.10d {+03h 20m 24s}  +18.40d {+18d 23' 45"}
SUN_DIST:        139.29 [deg]   Sun_angle= 9.1 [hr] (West of Sun)
MOON_POSTN:      322.67d {+21h 30m 42s}   -9.30d {-09d 18' 01"}
MOON_DIST:        49.74 [deg]
GAL_COORDS:        4.31, -4.47 [deg] galactic lon,lat of the burst
ECL_COORDS:      272.88, -4.01 [deg] ecliptic lon,lat of the burst
COMMENTS:        OGLE Gravitational Lensing Event.