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TITLE:           GCN/OGLE NOTICE
NOTICE_DATE:     Mon 23 Sep 13 15:08:56 UT
NOTICE_TYPE:     OGLE Lensing Event
SRC_ID_NUM:      201301831
SRC_RA:          266.8899d {+17h 47m 34s} (J2000),
                 267.0972d {+17h 48m 23s} (current),
                 266.1304d {+17h 44m 31s} (1950)
SRC_DEC:         -23.1857d {-23d 11' 08"} (J2000),
                 -23.1897d {-23d 11' 22"} (current),
                 -23.1688d {-23d 10' 07"} (1950)
DISCOVERY_DATE:  16527 TJD;   235 DOY;   13/08/23 (yy/mm/dd)
DISCOVERY_TIME:  54536 SOD {15:08:56.00} UT
LEAD_TIME:       39.019 [days]
MAX_DATE:        16566 TJD;   274 DOY;   13/10/01 (yy/mm/dd)
MAX_TIME:        56159 SOD {15:35:59.99} UT
MAX_UNCERT:      11.640 [days]
CUSP_WIDTH:      136.67 +/- 10.55 [days]
u0:              0.76 +/- 0.02 [RingUnits]
MAX_MAG:         18.6 mag (estimated)
BASE_MAG:        19.14 +/- 0.00 [mag]
AMPLIFICATION:   1.57 +/- 0.04 factor
LC_URL:          http://www.astrouw.edu.pl/~ogle/ogle4/ews/blg-1831.html
SUN_POSTN:       180.69d {+12h 02m 45s}   -0.30d {-00d 17' 53"}
SUN_DIST:         86.58 [deg]   Sun_angle= -5.8 [hr] (East of Sun)
MOON_POSTN:       49.47d {+03h 17m 52s}  +16.94d {+16d 56' 37"}
MOON_DIST:       144.21 [deg]
GAL_COORDS:        5.14,  2.61 [deg] galactic lon,lat of the burst
ECL_COORDS:      267.14,  0.22 [deg] ecliptic lon,lat of the burst
COMMENTS:        OGLE Gravitational Lensing Event.