////////////////////////////////////////////////////////////////////// TITLE: GCN/OGLE NOTICE NOTICE_DATE: Sat 29 Sep 18 00:57:49 UT NOTICE_TYPE: OGLE Lensing Event SRC_ID_NUM: 201801733 SRC_RA: 271.0754d {+18h 04m 18s} (J2000), 271.3681d {+18h 05m 28s} (current), 270.2911d {+18h 01m 10s} (1950) SRC_DEC: -27.3086d {-27d 18' 30"} (J2000), -27.3064d {-27d 18' 22"} (current), -27.3119d {-27d 18' 42"} (1950) DISCOVERY_DATE: 18359 TJD; 241 DOY; 18/08/29 (yy/mm/dd) DISCOVERY_TIME: 3469 SOD {00:57:49.00} UT LEAD_TIME: 23.203 [days] MAX_DATE: 18382 TJD; 264 DOY; 18/09/21 (yy/mm/dd) MAX_TIME: 20995 SOD {05:49:55.19} UT MAX_UNCERT: 0.040 [days] CUSP_WIDTH: 2.73 +/- 0.13 [days] u0: 0.42 +/- 0.01 [RingUnits] MAX_MAG: 18.5 mag (estimated) BASE_MAG: 19.45 +/- 0.00 [mag] AMPLIFICATION: 2.48 +/- 0.05 factor LC_URL: http://www.astrouw.edu.pl/~ogle/ogle4/ews/blg-1733.html SUN_POSTN: 185.37d {+12h 21m 28s} -2.32d {-02d 19' 18"} SUN_DIST: 85.38 [deg] Sun_angle= -5.7 [hr] (East of Sun) MOON_POSTN: 51.92d {+03h 27m 41s} +13.88d {+13d 52' 42"} MOON_DIST: 140.91 [deg] GAL_COORDS: 3.49, -2.73 [deg] galactic lon,lat of the burst ECL_COORDS: 270.96, -3.87 [deg] ecliptic lon,lat of the burst COMMENTS: OGLE Gravitational Lensing Event.