////////////////////////////////////////////////////////////////////// TITLE: GCN/OGLE NOTICE NOTICE_DATE: Fri 18 May 18 07:55:58 UT NOTICE_TYPE: OGLE Lensing Event SRC_ID_NUM: 201800830 SRC_RA: 269.3304d {+17h 57m 19s} (J2000), 269.6204d {+17h 58m 29s} (current), 268.5381d {+17h 54m 09s} (1950) SRC_DEC: -28.6126d {-28d 36' 44"} (J2000), -28.6135d {-28d 36' 48"} (current), -28.6074d {-28d 36' 26"} (1950) DISCOVERY_DATE: 18226 TJD; 108 DOY; 18/04/18 (yy/mm/dd) DISCOVERY_TIME: 28558 SOD {07:55:58.00} UT LEAD_TIME: 34.252 [days] MAX_DATE: 18260 TJD; 142 DOY; 18/05/22 (yy/mm/dd) MAX_TIME: 50371 SOD {13:59:31.20} UT MAX_UNCERT: 2.120 [days] CUSP_WIDTH: 13.38 +/- 1.82 [days] u0: 0.25 +/- 0.16 [RingUnits] MAX_MAG: 18.6 mag (estimated) BASE_MAG: 20.17 +/- 0.00 [mag] AMPLIFICATION: 4.06 +/- 2.60 factor LC_URL: http://www.astrouw.edu.pl/~ogle/ogle4/ews/blg-0830.html SUN_POSTN: 55.07d {+03h 40m 16s} +19.56d {+19d 33' 51"} SUN_DIST: 147.31 [deg] Sun_angle= 9.7 [hr] (West of Sun) MOON_POSTN: 96.61d {+06h 26m 26s} +20.50d {+20d 29' 56"} MOON_DIST: 169.70 [deg] GAL_COORDS: 1.59, -2.04 [deg] galactic lon,lat of the burst ECL_COORDS: 269.41, -5.17 [deg] ecliptic lon,lat of the burst COMMENTS: OGLE Gravitational Lensing Event.