////////////////////////////////////////////////////////////////////// TITLE: GCN/OGLE NOTICE NOTICE_DATE: Mon 13 Feb 17 20:31:48 UT NOTICE_TYPE: OGLE Lensing Event SRC_ID_NUM: 201700020 SRC_RA: 269.7355d {+17h 58m 57s} (J2000), 270.0034d {+18h 00m 01s} (current), 268.9494d {+17h 55m 48s} (1950) SRC_DEC: -27.6120d {-27d 36' 42"} (J2000), -27.6122d {-27d 36' 43"} (current), -27.6088d {-27d 36' 31"} (1950) DISCOVERY_DATE: 17766 TJD; 13 DOY; 17/01/13 (yy/mm/dd) DISCOVERY_TIME: 73908 SOD {20:31:48.00} UT LEAD_TIME: 27.731 [days] MAX_DATE: 17794 TJD; 41 DOY; 17/02/10 (yy/mm/dd) MAX_TIME: 50630 SOD {14:03:50.40} UT MAX_UNCERT: 0.090 [days] CUSP_WIDTH: 106.21 +/- 22.16 [days] u0: 0.02 +/- 0.00 [RingUnits] MAX_MAG: 15.6 mag (estimated) BASE_MAG: 19.53 +/- 0.00 [mag] AMPLIFICATION: 37.13 +/- 8.40 factor LC_URL: http://www.astrouw.edu.pl/~ogle/ogle4/ews/blg-0020.html SUN_POSTN: 327.61d {+21h 50m 26s} -13.07d {-13d 04' 27"} SUN_DIST: 55.44 [deg] Sun_angle= 3.8 [hr] (West of Sun) MOON_POSTN: 180.90d {+12h 03m 35s} +2.26d {+02d 15' 51"} MOON_DIST: 90.26 [deg] GAL_COORDS: 2.63, -1.85 [deg] galactic lon,lat of the burst ECL_COORDS: 269.77, -4.17 [deg] ecliptic lon,lat of the burst COMMENTS: OGLE Gravitational Lensing Event.