////////////////////////////////////////////////////////////////////// TITLE: GCN/OGLE NOTICE NOTICE_DATE: Fri 12 Apr 19 20:27:31 UT NOTICE_TYPE: OGLE Lensing Event SRC_ID_NUM: 201900453 SRC_RA: 268.6925d {+17h 54m 46s} (J2000), 268.9945d {+17h 55m 59s} (current), 267.9059d {+17h 51m 37s} (1950) SRC_DEC: -27.6960d {-27d 41' 45"} (J2000), -27.6982d {-27d 41' 52"} (current), -27.6877d {-27d 41' 15"} (1950) DISCOVERY_DATE: 18554 TJD; 71 DOY; 19/03/12 (yy/mm/dd) DISCOVERY_TIME: 73651 SOD {20:27:31.00} UT LEAD_TIME: 28.819 [days] MAX_DATE: 18583 TJD; 100 DOY; 19/04/10 (yy/mm/dd) MAX_TIME: 57974 SOD {16:06:14.40} UT MAX_UNCERT: 0.020 [days] CUSP_WIDTH: 3.02 +/- 0.06 [days] u0: 0.28 +/- 0.00 [RingUnits] MAX_MAG: 18.4 mag (estimated) BASE_MAG: 19.79 +/- 0.00 [mag] AMPLIFICATION: 3.62 +/- 0.04 factor LC_URL: http://www.astrouw.edu.pl/~ogle/ogle4/ews/blg-0453.html SUN_POSTN: 20.95d {+01h 23m 47s} +8.81d {+08d 48' 30"} SUN_DIST: 113.47 [deg] Sun_angle= 7.5 [hr] (West of Sun) MOON_POSTN: 115.28d {+07h 41m 08s} +21.63d {+21d 37' 41"} MOON_DIST: 155.40 [deg] GAL_COORDS: 2.10, -1.09 [deg] galactic lon,lat of the burst ECL_COORDS: 268.84, -4.26 [deg] ecliptic lon,lat of the burst COMMENTS: OGLE Gravitational Lensing Event.