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Stellar Occultation by (19565) 1999 KF4 on 2026-08-03 (22:15:51 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] : 62bde350-d9ac-11f1-43f3-53b04fd7914a [observed]

 Occultation Date + Time   : 2026-08-03 at 22:15:51 UT +/- 0.02 min  [1]
 Object Designation        : (19565) 1999 KF4
 Star Designation          : GDR3 4313039320105211008
 Star Coordinates (ICRF)   : RA = 19 16 00.3289, DE = +12 32 32.847  [2]
 Star Magnitudes           : G = 14.82 mag, RP = 13.9 mag, BP = 15.67 mag
 Object Magnitude          : V = 15.75 mag
 Estimated Magnitude Drop  : 1.3 mag
 Estimated Max. Duration   : 1.7 sec
 Speed of the shadow       : 6.0 km/s
 Object Mean Diameter      : 10.0 km  (src: astorb) => apparent = 11 mas
 Apparent Motion           : 0.3933 arcs/min @ PA = 277 deg
 Horizontal Parallax       : 6.9480 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 81° (sunlit = 73%), Sun = 141°
 Cross-track uncertainty   : 3.0 mas = 2 km = 0.28 path-width (1-sig)
 RUWE and duplicate source : 1.02 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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