////////////////////////////////////////////////////////////////////// TITLE: GCN/OGLE NOTICE NOTICE_DATE: Mon 15 Apr 19 17:55:26 UT NOTICE_TYPE: OGLE Lensing Event SRC_ID_NUM: 201900503 SRC_RA: 268.6177d {+17h 54m 28s} (J2000), 268.9294d {+17h 55m 43s} (current), 267.8063d {+17h 51m 14s} (1950) SRC_DEC: -31.5570d {-31d 33' 24"} (J2000), -31.5593d {-31d 33' 32"} (current), -31.5483d {-31d 32' 53"} (1950) DISCOVERY_DATE: 18557 TJD; 74 DOY; 19/03/15 (yy/mm/dd) DISCOVERY_TIME: 64526 SOD {17:55:26.00} UT LEAD_TIME: 33.549 [days] MAX_DATE: 18591 TJD; 108 DOY; 19/04/18 (yy/mm/dd) MAX_TIME: 25574 SOD {07:06:14.40} UT MAX_UNCERT: 1.470 [days] CUSP_WIDTH: 16.95 +/- 1.27 [days] u0: 0.66 +/- 0.03 [RingUnits] MAX_MAG: 18.6 mag (estimated) BASE_MAG: 19.21 +/- 0.00 [mag] AMPLIFICATION: 1.73 +/- 0.06 factor LC_URL: http://www.astrouw.edu.pl/~ogle/ogle4/ews/blg-0503.html SUN_POSTN: 23.62d {+01h 34m 28s} +9.85d {+09d 51' 07"} SUN_DIST: 116.12 [deg] Sun_angle= 7.6 [hr] (West of Sun) MOON_POSTN: 158.01d {+10h 32m 01s} +13.01d {+13d 00' 20"} MOON_DIST: 114.47 [deg] GAL_COORDS: 358.73, -2.98 [deg] galactic lon,lat of the burst ECL_COORDS: 268.81, -8.12 [deg] ecliptic lon,lat of the burst COMMENTS: OGLE Gravitational Lensing Event.