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Stellar Occultation by (53453) 1999 XX135 on 2026-09-15 (22:30:50 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] : 98424f30-d9b0-11f1-43f3-6607fbe7e595 [observed]

 Occultation Date + Time   : 2026-09-15 at 22:30:50 UT +/- 0.02 min  [1]
 Object Designation        : (53453) 1999 XX135
 Star Designation          : GDR3 0380345987155234688
 Star Coordinates (ICRF)   : RA = 00 18 56.5260, DE = +40 01 47.309  [2]
 Star Magnitudes           : G = 14.18 mag, RP = 13.51 mag, BP = 14.68 mag
 Object Magnitude          : V = 17.45 mag
 Estimated Magnitude Drop  : 3.3 mag
 Estimated Max. Duration   : 0.6 sec
 Speed of the shadow       : 6.1 km/s
 Object Mean Diameter      : 3.4 km  (src: astorb) => apparent = 5 mas
 Apparent Motion           : 0.4967 arcs/min @ PA = 285 deg
 Horizontal Parallax       : 8.7180 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 141° (sunlit = 23%), Sun = 136°
 Cross-track uncertainty   : 2.3 mas = 1 km = 0.49 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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