////////////////////////////////////////////////////////////////////// TITLE: GCN/OGLE NOTICE NOTICE_DATE: Fri 12 Apr 19 20:27:29 UT NOTICE_TYPE: OGLE Lensing Event SRC_ID_NUM: 201900452 SRC_RA: 269.7491d {+17h 59m 00s} (J2000), 270.0515d {+18h 00m 12s} (current), 268.9615d {+17h 55m 51s} (1950) SRC_DEC: -27.8579d {-27d 51' 27"} (J2000), -27.8581d {-27d 51' 28"} (current), -27.8548d {-27d 51' 16"} (1950) DISCOVERY_DATE: 18554 TJD; 71 DOY; 19/03/12 (yy/mm/dd) DISCOVERY_TIME: 73649 SOD {20:27:29.00} UT LEAD_TIME: 27.081 [days] MAX_DATE: 18581 TJD; 98 DOY; 19/04/08 (yy/mm/dd) MAX_TIME: 80611 SOD {22:23:31.20} UT MAX_UNCERT: 0.010 [days] CUSP_WIDTH: 5.98 +/- 0.07 [days] u0: 0.13 +/- 0.00 [RingUnits] MAX_MAG: 17.7 mag (estimated) BASE_MAG: 19.85 +/- 0.00 [mag] AMPLIFICATION: 7.51 +/- 0.05 factor LC_URL: http://www.astrouw.edu.pl/~ogle/ogle4/ews/blg-0452.html SUN_POSTN: 20.95d {+01h 23m 47s} +8.81d {+08d 48' 30"} SUN_DIST: 112.53 [deg] Sun_angle= 7.4 [hr] (West of Sun) MOON_POSTN: 115.28d {+07h 41m 08s} +21.63d {+21d 37' 41"} MOON_DIST: 156.30 [deg] GAL_COORDS: 2.43, -1.98 [deg] galactic lon,lat of the burst ECL_COORDS: 269.78, -4.42 [deg] ecliptic lon,lat of the burst COMMENTS: OGLE Gravitational Lensing Event.