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Stellar Occultation by (338343) 2002 WY19 on 2023-08-12 (23:17:37 UT)

CTU: Cross-track uncertainty (zero means: use the nominal prediction value, see event details below). Offsets and CTU all in mas.


Event Details
 Occultation UUID [and db] : ea2b8310-ddb3-11f0-547e-b99677fd326c [observed]

 Occultation Date + Time   : 2023-08-12 at 23:17:37 UT +/- 0.04 min  [1]
 Object Designation        : (338343) 2002 WY19
 Star Designation          : GDR3 1771881821594008192
 Star Coordinates (ICRF)   : RA = 21 36 08.8824, DE = +16 09 56.723  [2]
 Star Magnitudes           : G = 9.68 mag, RP = 8.96 mag, BP = 10.24 mag
 Object Magnitude          : V = 20.27 mag
 Estimated Magnitude Drop  : 10.6 mag
 Estimated Max. Duration   : 0.5 sec
 Speed of the shadow       : 15.6 km/s
 Object Mean Diameter      : 8.1 km  (src: astorb) => apparent = 3 mas
 Apparent Motion           : 0.3083 arcs/min @ PA = 258 deg
 Horizontal Parallax       : 2.0930 arcs
 Dynamical Class           : JTRO
 Elongation to Moon & Sun  : 121° (sunlit = 10%), Sun = 149°
 Cross-track uncertainty   : 5.0 mas = 15 km = 1.88 path-width (1-sig)
 RUWE and duplicate source : 1.64 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL34
 Note                      : FP:true

 
 [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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