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TITLE:           GCN/OGLE NOTICE
NOTICE_DATE:     Thu 18 Apr 13 18:41:22 UT
NOTICE_TYPE:     OGLE Lensing Event
SRC_ID_NUM:      201300537
SRC_RA:          270.1357d {+18h 00m 33s} (J2000),
                 270.3497d {+18h 01m 24s} (current),
                 269.3258d {+17h 57m 18s} (1950)
SRC_DEC:         -31.3230d {-31d 19' 22"} (J2000),
                 -31.3227d {-31d 19' 21"} (current),
                 -31.3217d {-31d 19' 17"} (1950)
DISCOVERY_DATE:  16369 TJD;    77 DOY;   13/03/18 (yy/mm/dd)
DISCOVERY_TIME:  67282 SOD {18:41:22.00} UT
LEAD_TIME:       27.477 [days]
MAX_DATE:        16397 TJD;   105 DOY;   13/04/15 (yy/mm/dd)
MAX_TIME:        22118 SOD {06:08:38.40} UT
MAX_UNCERT:      1.720 [days]
CUSP_WIDTH:      22.45 +/- 1.87 [days]
u0:              0.92 +/- 0.01 [RingUnits]
MAX_MAG:         18.7 mag (estimated)
BASE_MAG:        19.07 +/- 0.00 [mag]
AMPLIFICATION:   1.39 +/- 0.01 factor
LC_URL:          http://www.astrouw.edu.pl/~ogle/ogle4/ews/blg-0537.html
SUN_POSTN:        26.85d {+01h 47m 24s}  +11.08d {+11d 04' 42"}
SUN_DIST:        118.29 [deg]   Sun_angle= 7.8 [hr] (West of Sun)
MOON_POSTN:      122.70d {+08h 10m 47s}  +14.82d {+14d 49' 10"}
MOON_DIST:       146.17 [deg]
GAL_COORDS:      359.58, -3.99 [deg] galactic lon,lat of the burst
ECL_COORDS:      270.12, -7.88 [deg] ecliptic lon,lat of the burst
COMMENTS:        OGLE Gravitational Lensing Event.