////////////////////////////////////////////////////////////////////// TITLE: GCN/OGLE NOTICE NOTICE_DATE: Sat 19 May 18 19:15:21 UT NOTICE_TYPE: OGLE Lensing Event SRC_ID_NUM: 201800852 SRC_RA: 266.4494d {+17h 45m 48s} (J2000), 266.7283d {+17h 46m 55s} (current), 265.6875d {+17h 42m 45s} (1950) SRC_DEC: -23.6110d {-23d 36' 39"} (J2000), -23.6171d {-23d 37' 00"} (current), -23.5919d {-23d 35' 30"} (1950) DISCOVERY_DATE: 18227 TJD; 109 DOY; 18/04/19 (yy/mm/dd) DISCOVERY_TIME: 69321 SOD {19:15:21.00} UT LEAD_TIME: 34.643 [days] MAX_DATE: 18262 TJD; 144 DOY; 18/05/24 (yy/mm/dd) MAX_TIME: 38447 SOD {10:40:47.99} UT MAX_UNCERT: 5.920 [days] CUSP_WIDTH: 35.44 +/- 4.94 [days] u0: 0.78 +/- 0.04 [RingUnits] MAX_MAG: 18.4 mag (estimated) BASE_MAG: 18.90 +/- 0.00 [mag] AMPLIFICATION: 1.55 +/- 0.06 factor LC_URL: http://www.astrouw.edu.pl/~ogle/ogle4/ews/blg-0852.html SUN_POSTN: 56.53d {+03h 46m 08s} +19.88d {+19d 52' 52"} SUN_DIST: 151.76 [deg] Sun_angle= 10.0 [hr] (West of Sun) MOON_POSTN: 119.48d {+07h 57m 54s} +19.58d {+19d 34' 51"} MOON_DIST: 149.35 [deg] GAL_COORDS: 4.57, 2.74 [deg] galactic lon,lat of the burst ECL_COORDS: 266.75, -0.21 [deg] ecliptic lon,lat of the burst COMMENTS: OGLE Gravitational Lensing Event.