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Stellar Occultation by (218784) 2005 YQ1 on 2026-10-18 (22:20:41 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] : 4a6f39e0-d9b4-11f1-43f3-4dbeecedeb09 [observed]

 Occultation Date + Time   : 2026-10-18 at 22:20:41 UT +/- 0.24 min  [1]
 Object Designation        : (218784) 2005 YQ1
 Star Designation          : GDR3 0123773677503076608
 Star Coordinates (ICRF)   : RA = 03 13 01.6801, DE = +32 16 22.216  [2]
 Star Magnitudes           : G = 12.81 mag, RP = 11.97 mag, BP = 13.55 mag
 Object Magnitude          : V = 17.86 mag
 Estimated Magnitude Drop  : 5.1 mag
 Estimated Max. Duration   : 0.3 sec
 Speed of the shadow       : 7.9 km/s
 Object Mean Diameter      : 2.5 km  (src: astorb) => apparent = 4 mas
 Apparent Motion           : 0.6850 arcs/min @ PA = 314 deg
 Horizontal Parallax       : 9.2670 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 116° (sunlit = 52%), Sun = 148°
 Cross-track uncertainty   : 59.3 mas = 40 km = 16.33 path-width (1-sig)
 RUWE and duplicate source : 1.1 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL34
 Note                      : FP:true

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


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