////////////////////////////////////////////////////////////////////// TITLE: GCN/OGLE NOTICE NOTICE_DATE: Fri 26 Apr 19 20:45:58 UT NOTICE_TYPE: OGLE Lensing Event SRC_ID_NUM: 201900552 SRC_RA: 268.8007d {+17h 55m 12s} (J2000), 269.1105d {+17h 56m 27s} (current), 267.9955d {+17h 51m 59s} (1950) SRC_DEC: -30.6185d {-30d 37' 06"} (J2000), -30.6205d {-30d 37' 13"} (current), -30.6107d {-30d 36' 38"} (1950) DISCOVERY_DATE: 18568 TJD; 85 DOY; 19/03/26 (yy/mm/dd) DISCOVERY_TIME: 74758 SOD {20:45:58.00} UT LEAD_TIME: 29.166 [days] MAX_DATE: 18598 TJD; 115 DOY; 19/04/25 (yy/mm/dd) MAX_TIME: 2678 SOD {00:44:38.39} UT MAX_UNCERT: 0.120 [days] CUSP_WIDTH: 6.30 +/- 0.19 [days] u0: 0.10 +/- 0.02 [RingUnits] MAX_MAG: 17.1 mag (estimated) BASE_MAG: 19.56 +/- 0.00 [mag] AMPLIFICATION: 9.23 +/- 2.16 factor LC_URL: http://www.astrouw.edu.pl/~ogle/ogle4/ews/blg-0552.html SUN_POSTN: 34.01d {+02h 16m 02s} +13.63d {+13d 37' 47"} SUN_DIST: 126.76 [deg] Sun_angle= 8.3 [hr] (West of Sun) MOON_POSTN: 308.30d {+20h 33m 12s} -20.12d {-20d 07' 15"} MOON_DIST: 36.73 [deg] GAL_COORDS: 359.62, -2.65 [deg] galactic lon,lat of the burst ECL_COORDS: 268.96, -7.18 [deg] ecliptic lon,lat of the burst COMMENTS: OGLE Gravitational Lensing Event.