////////////////////////////////////////////////////////////////////// TITLE: GCN/OGLE NOTICE NOTICE_DATE: Wed 21 Feb 18 22:54:58 UT NOTICE_TYPE: OGLE Lensing Event SRC_ID_NUM: 201800053 SRC_RA: 269.7307d {+17h 58m 55s} (J2000), 270.0152d {+18h 00m 04s} (current), 268.9431d {+17h 55m 46s} (1950) SRC_DEC: -27.8443d {-27d 50' 38"} (J2000), -27.8445d {-27d 50' 39"} (current), -27.8411d {-27d 50' 27"} (1950) DISCOVERY_DATE: 18139 TJD; 21 DOY; 18/01/21 (yy/mm/dd) DISCOVERY_TIME: 82498 SOD {22:54:58.00} UT LEAD_TIME: 41.778 [days] MAX_DATE: 18181 TJD; 63 DOY; 18/03/04 (yy/mm/dd) MAX_TIME: 63331 SOD {17:35:31.20} UT MAX_UNCERT: 4.580 [days] CUSP_WIDTH: 21.14 +/- 3.19 [days] u0: 0.65 +/- 0.13 [RingUnits] MAX_MAG: 17.8 mag (estimated) BASE_MAG: 18.42 +/- 0.00 [mag] AMPLIFICATION: 1.77 +/- 0.26 factor LC_URL: http://www.astrouw.edu.pl/~ogle/ogle4/ews/blg-0053.html SUN_POSTN: 335.19d {+22h 20m 47s} -10.31d {-10d 18' 26"} SUN_DIST: 63.34 [deg] Sun_angle= 4.3 [hr] (West of Sun) MOON_POSTN: 44.66d {+02h 58m 39s} +11.43d {+11d 25' 49"} MOON_DIST: 134.56 [deg] GAL_COORDS: 2.43, -1.96 [deg] galactic lon,lat of the burst ECL_COORDS: 269.76, -4.41 [deg] ecliptic lon,lat of the burst COMMENTS: OGLE Gravitational Lensing Event.