////////////////////////////////////////////////////////////////////// TITLE: GCN/OGLE NOTICE NOTICE_DATE: Sat 21 Apr 18 21:19:05 UT NOTICE_TYPE: OGLE Lensing Event SRC_ID_NUM: 201800673 SRC_RA: 258.4527d {+17h 13m 49s} (J2000), 258.7440d {+17h 14m 59s} (current), 257.6539d {+17h 10m 37s} (1950) SRC_DEC: -30.1896d {-30d 11' 22"} (J2000), -30.2097d {-30d 12' 34"} (current), -30.1320d {-30d 07' 54"} (1950) DISCOVERY_DATE: 18198 TJD; 80 DOY; 18/03/21 (yy/mm/dd) DISCOVERY_TIME: 76745 SOD {21:19:05.00} UT LEAD_TIME: 54.926 [days] MAX_DATE: 18253 TJD; 135 DOY; 18/05/15 (yy/mm/dd) MAX_TIME: 70329 SOD {19:32:09.59} UT MAX_UNCERT: 2.810 [days] CUSP_WIDTH: 35.34 +/- 3.51 [days] u0: 0.00 +/- 0.42 [RingUnits] MAX_MAG: 12.2 mag (estimated) BASE_MAG: 19.60 +/- 0.00 [mag] AMPLIFICATION: 243.64 +/- 0.00 factor LC_URL: http://www.astrouw.edu.pl/~ogle/ogle4/ews/blg-0673.html SUN_POSTN: 29.56d {+01h 58m 14s} +12.07d {+12d 04' 13"} SUN_DIST: 131.11 [deg] Sun_angle= 8.7 [hr] (West of Sun) MOON_POSTN: 109.50d {+07h 17m 59s} +20.18d {+20d 10' 40"} MOON_DIST: 150.53 [deg] GAL_COORDS: 355.14, 5.08 [deg] galactic lon,lat of the burst ECL_COORDS: 259.96, -7.15 [deg] ecliptic lon,lat of the burst COMMENTS: OGLE Gravitational Lensing Event. COMMENTS: WARNING: Amax_error was 'nan'.