////////////////////////////////////////////////////////////////////// TITLE: GCN/OGLE NOTICE NOTICE_DATE: Mon 13 May 19 19:15:37 UT NOTICE_TYPE: OGLE Lensing Event SRC_ID_NUM: 201900720 SRC_RA: 270.8900d {+18h 03m 34s} (J2000), 271.1938d {+18h 04m 47s} (current), 270.1023d {+18h 00m 25s} (1950) SRC_DEC: -27.8574d {-27d 51' 26"} (J2000), -27.8554d {-27d 51' 19"} (current), -27.8598d {-27d 51' 34"} (1950) DISCOVERY_DATE: 18586 TJD; 103 DOY; 19/04/13 (yy/mm/dd) DISCOVERY_TIME: 69337 SOD {19:15:37.00} UT LEAD_TIME: 52.059 [days] MAX_DATE: 18638 TJD; 155 DOY; 19/06/04 (yy/mm/dd) MAX_TIME: 74476 SOD {20:41:16.80} UT MAX_UNCERT: 9.690 [days] CUSP_WIDTH: 62.31 +/- 5.11 [days] u0: 1.85 +/- 0.03 [RingUnits] MAX_MAG: 17.3 mag (estimated) BASE_MAG: 17.34 +/- 0.00 [mag] AMPLIFICATION: 1.07 +/- 0.00 factor LC_URL: http://www.astrouw.edu.pl/~ogle/ogle4/ews/blg-0720.html SUN_POSTN: 50.34d {+03h 21m 22s} +18.46d {+18d 27' 21"} SUN_DIST: 141.47 [deg] Sun_angle= 9.3 [hr] (West of Sun) MOON_POSTN: 168.80d {+11h 15m 11s} +9.50d {+09d 30' 09"} MOON_DIST: 105.33 [deg] GAL_COORDS: 2.93, -2.86 [deg] galactic lon,lat of the burst ECL_COORDS: 270.79, -4.42 [deg] ecliptic lon,lat of the burst COMMENTS: OGLE Gravitational Lensing Event.