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Stellar Occultation by (19565) 1999 KF4 on 2026-10-01 (20:11:38 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] : d099b890-d9b1-11f1-43f3-6ee7a67e4d1f [observed]

 Occultation Date + Time   : 2026-10-01 at 20:11:38 UT +/- 0.01 min  [1]
 Object Designation        : (19565) 1999 KF4
 Star Designation          : GDR3 4296194870722000512
 Star Coordinates (ICRF)   : RA = 19 28 36.8611, DE = +08 18 07.547  [2]
 Star Magnitudes           : G = 14.4 mag, RP = 13.74 mag, BP = 14.8 mag
 Object Magnitude          : V = 16.73 mag
 Estimated Magnitude Drop  : 2.4 mag
 Estimated Max. Duration   : 0.7 sec
 Speed of the shadow       : 14.0 km/s
 Object Mean Diameter      : 10.0 km  (src: astorb) => apparent = 8 mas
 Apparent Motion           : 0.6767 arcs/min @ PA = 110 deg
 Horizontal Parallax       : 5.1370 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 129° (sunlit = 70%), Sun = 105°
 Cross-track uncertainty   : 2.3 mas = 2 km = 0.29 path-width (1-sig)
 RUWE and duplicate source : 2.46 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL49
 Note                      : FP:true

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


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