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Stellar Occultation by (35664) 1998 QC64 on 2025-10-23 (21:19:22 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] : 9e4ca730-ddb8-11f0-547e-36e4377eb3d9 [observed]

 Occultation Date + Time   : 2025-10-23 at 21:19:22 UT +/- 0.0 min  [1]
 Object Designation        : (35664) 1998 QC64
 Star Designation          : GDR3 4256507964150354176
 Star Coordinates (ICRF)   : RA = 18 40 31.4105, DE = -05 26 08.112  [2]
 Star Magnitudes           : G = 11.45 mag, RP = 10.39 mag, BP = 12.62 mag
 Object Magnitude          : V = 19.27 mag
 Estimated Magnitude Drop  : 7.8 mag
 Estimated Max. Duration   : 0.2 sec
 Speed of the shadow       : 29.1 km/s
 Object Mean Diameter      : 7.1 km  (src: astorb) => apparent = 3 mas
 Apparent Motion           : 0.7533 arcs/min @ PA = 107 deg
 Horizontal Parallax       : 2.7540 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 49° (sunlit = 5%), Sun = 71°
 Cross-track uncertainty   : 0.4 mas = 0 km = 0.13 path-width (1-sig)
 RUWE and duplicate source : 0.95 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#54
 Note                      : FP:true

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


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