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TITLE:           GCN/OGLE NOTICE
NOTICE_DATE:     Fri 20 Sep 13 16:52:02 UT
NOTICE_TYPE:     OGLE Lensing Event
SRC_ID_NUM:      201301820
SRC_RA:          271.1312d {+18h 04m 31s} (J2000),
                 271.3483d {+18h 05m 24s} (current),
                 270.3350d {+18h 01m 20s} (1950)
SRC_DEC:         -29.2095d {-29d 12' 33"} (J2000),
                 -29.2079d {-29d 12' 27"} (current),
                 -29.2131d {-29d 12' 46"} (1950)
DISCOVERY_DATE:  16524 TJD;   232 DOY;   13/08/20 (yy/mm/dd)
DISCOVERY_TIME:  60722 SOD {16:52:02.00} UT
LEAD_TIME:       59.453 [days]
MAX_DATE:        16584 TJD;   292 DOY;   13/10/19 (yy/mm/dd)
MAX_TIME:        13478 SOD {03:44:38.39} UT
MAX_UNCERT:      3.050 [days]
CUSP_WIDTH:      59.87 +/- 2.10 [days]
u0:              0.48 +/- 0.05 [RingUnits]
MAX_MAG:         16.4 mag (estimated)
BASE_MAG:        17.29 +/- 0.00 [mag]
AMPLIFICATION:   2.23 +/- 0.19 factor
LC_URL:          http://www.astrouw.edu.pl/~ogle/ogle4/ews/blg-1820.html
SUN_POSTN:       178.06d {+11h 52m 14s}   +0.84d {+00d 50' 27"}
SUN_DIST:         93.28 [deg]   Sun_angle= -6.2 [hr] (East of Sun)
MOON_POSTN:       11.60d {+00h 46m 23s}   +7.26d {+07d 15' 31"}
MOON_DIST:       102.46 [deg]
GAL_COORDS:        1.85, -3.71 [deg] galactic lon,lat of the burst
ECL_COORDS:      270.99, -5.77 [deg] ecliptic lon,lat of the burst
COMMENTS:        OGLE Gravitational Lensing Event.