////////////////////////////////////////////////////////////////////// TITLE: GCN/OGLE NOTICE NOTICE_DATE: Fri 23 Feb 18 14:47:28 UT NOTICE_TYPE: OGLE Lensing Event SRC_ID_NUM: 201800191 SRC_RA: 269.2715d {+17h 57m 05s} (J2000), 269.5559d {+17h 58m 13s} (current), 268.4844d {+17h 53m 56s} (1950) SRC_DEC: -27.7780d {-27d 46' 40"} (J2000), -27.7790d {-27d 46' 44"} (current), -27.7725d {-27d 46' 20"} (1950) DISCOVERY_DATE: 18141 TJD; 23 DOY; 18/01/23 (yy/mm/dd) DISCOVERY_TIME: 53248 SOD {14:47:28.00} UT LEAD_TIME: 31.066 [days] MAX_DATE: 18172 TJD; 54 DOY; 18/02/23 (yy/mm/dd) MAX_TIME: 58924 SOD {16:22:04.80} UT MAX_UNCERT: 0.130 [days] CUSP_WIDTH: 4.11 +/- 0.51 [days] u0: 0.21 +/- 0.01 [RingUnits] MAX_MAG: 19.1 mag (estimated) BASE_MAG: 20.77 +/- 0.00 [mag] AMPLIFICATION: 4.70 +/- 0.20 factor LC_URL: http://www.astrouw.edu.pl/~ogle/ogle4/ews/blg-0191.html SUN_POSTN: 336.78d {+22h 27m 06s} -9.70d {-09d 41' 58"} SUN_DIST: 65.41 [deg] Sun_angle= 4.5 [hr] (West of Sun) MOON_POSTN: 67.64d {+04h 30m 34s} +17.01d {+17d 00' 29"} MOON_DIST: 157.11 [deg] GAL_COORDS: 2.28, -1.58 [deg] galactic lon,lat of the burst ECL_COORDS: 269.35, -4.34 [deg] ecliptic lon,lat of the burst COMMENTS: OGLE Gravitational Lensing Event.