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Stellar Occultation by (194581) 2001 XK104 on 2025-09-07 (20:33:01 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] : 65bc0560-ddb7-11f0-547e-06cabf7c38fb [observed]

 Occultation Date + Time   : 2025-09-07 at 20:33:01 UT +/- 0.0 min  [1]
 Object Designation        : (194581) 2001 XK104
 Star Designation          : GDR3 4469006384522418560
 Star Coordinates (ICRF)   : RA = 17 51 39.7512, DE = +02 11 12.902  [2]
 Star Magnitudes           : G = 13.98 mag, RP = 13.34 mag, BP = 14.44 mag
 Object Magnitude          : V = 18.97 mag
 Estimated Magnitude Drop  : 5.0 mag
 Estimated Max. Duration   : 0.3 sec
 Speed of the shadow       : 11.4 km/s
 Object Mean Diameter      : 2.8 km  (src: astorb) => apparent = 3 mas
 Apparent Motion           : 0.6483 arcs/min @ PA = 90 deg
 Horizontal Parallax       : 6.0760 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 80° (sunlit = 100%), Sun = 101°
 Cross-track uncertainty   : 2.3 mas = 2 km = 0.86 path-width (1-sig)
 RUWE and duplicate source : 0.99 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#32
 Note                      : FP:true

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


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