////////////////////////////////////////////////////////////////////// TITLE: GCN/OGLE NOTICE NOTICE_DATE: Fri 23 Feb 18 14:47:54 UT NOTICE_TYPE: OGLE Lensing Event SRC_ID_NUM: 201800204 SRC_RA: 266.6470d {+17h 46m 35s} (J2000), 266.9454d {+17h 47m 47s} (current), 265.8211d {+17h 43m 17s} (1950) SRC_DEC: -33.7199d {-33d 43' 11"} (J2000), -33.7255d {-33d 43' 31"} (current), -33.7016d {-33d 42' 05"} (1950) DISCOVERY_DATE: 18141 TJD; 23 DOY; 18/01/23 (yy/mm/dd) DISCOVERY_TIME: 53274 SOD {14:47:54.00} UT LEAD_TIME: 26.052 [days] MAX_DATE: 18167 TJD; 49 DOY; 18/02/18 (yy/mm/dd) MAX_TIME: 57801 SOD {16:03:21.60} UT MAX_UNCERT: 0.680 [days] CUSP_WIDTH: 10.90 +/- 2.75 [days] u0: 0.40 +/- 0.02 [RingUnits] MAX_MAG: 19.6 mag (estimated) BASE_MAG: 20.63 +/- 0.01 [mag] AMPLIFICATION: 2.64 +/- 0.15 factor LC_URL: http://www.astrouw.edu.pl/~ogle/ogle4/ews/blg-0204.html SUN_POSTN: 336.78d {+22h 27m 06s} -9.70d {-09d 41' 58"} SUN_DIST: 67.90 [deg] Sun_angle= 4.7 [hr] (West of Sun) MOON_POSTN: 67.64d {+04h 30m 35s} +17.01d {+17d 00' 32"} MOON_DIST: 155.93 [deg] GAL_COORDS: 356.02, -2.66 [deg] galactic lon,lat of the burst ECL_COORDS: 267.17,-10.31 [deg] ecliptic lon,lat of the burst COMMENTS: OGLE Gravitational Lensing Event.