////////////////////////////////////////////////////////////////////// TITLE: GCN/OGLE NOTICE NOTICE_DATE: Wed 18 Mar 15 13:31:00 UT NOTICE_TYPE: OGLE Lensing Event SRC_ID_NUM: 201500421 SRC_RA: 273.0549d {+18h 12m 13s} (J2000), 273.2928d {+18h 13m 10s} (current), 272.2689d {+18h 09m 05s} (1950) SRC_DEC: -27.6126d {-27d 36' 44"} (J2000), -27.6079d {-27d 36' 28"} (current), -27.6255d {-27d 37' 31"} (1950) DISCOVERY_DATE: 17071 TJD; 49 DOY; 15/02/18 (yy/mm/dd) DISCOVERY_TIME: 48660 SOD {13:31:00.00} UT LEAD_TIME: 12.721 [days] MAX_DATE: 17084 TJD; 62 DOY; 15/03/03 (yy/mm/dd) MAX_TIME: 24537 SOD {06:48:57.59} UT MAX_UNCERT: 0.510 [days] CUSP_WIDTH: 9.65 +/- 0.73 [days] u0: 0.70 +/- 0.01 [RingUnits] MAX_MAG: 17.5 mag (estimated) BASE_MAG: 18.07 +/- 0.00 [mag] AMPLIFICATION: 1.66 +/- 0.01 factor LC_URL: http://www.astrouw.edu.pl/~ogle/ogle4/ews/blg-0421.html SUN_POSTN: 357.83d {+23h 51m 19s} -0.94d {-00d 56' 28"} SUN_DIST: 84.72 [deg] Sun_angle= 5.6 [hr] (West of Sun) MOON_POSTN: 332.68d {+22h 10m 42s} -7.88d {-07d 52' 44"} MOON_DIST: 59.30 [deg] GAL_COORDS: 4.07, -4.42 [deg] galactic lon,lat of the burst ECL_COORDS: 272.71, -4.20 [deg] ecliptic lon,lat of the burst COMMENTS: OGLE Gravitational Lensing Event.