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Stellar Occultation by (193535) 2000 YS109 on 2022-12-04 (20:49:19 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] : 3606b8a0-ddb3-11f0-547e-87243fffe039 [observed]

 Occultation Date + Time   : 2022-12-04 at 20:49:19 UT +/- 0.05 min  [1]
 Object Designation        : (193535) 2000 YS109
 Star Designation          : GDR3 0127957555468635008
 Star Coordinates (ICRF)   : RA = 02 40 32.2093, DE = +28 23 09.228  [2]
 Star Magnitudes           : G = 12.14 mag, RP = 11.36 mag, BP = 12.79 mag
 Object Magnitude          : V = 19.91 mag
 Estimated Magnitude Drop  : 7.8 mag
 Estimated Max. Duration   : 0.6 sec
 Speed of the shadow       : 14.2 km/s
 Object Mean Diameter      : 9.1 km  (src: astorb) => apparent = 3 mas
 Apparent Motion           : 0.2833 arcs/min @ PA = 239 deg
 Horizontal Parallax       : 2.1250 arcs
 Dynamical Class           : JTRO
 Elongation to Moon & Sun  : 17° (sunlit = 90%), Sun = 151°
 Cross-track uncertainty   : 3.7 mas = 11 km = 1.22 path-width (1-sig)
 RUWE and duplicate source : 1.19 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#39
 Note                      : FP:true

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


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