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Stellar Occultation by (363341) 2002 QQ1 on 2025-12-18 (18:03:35 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] : df217c40-ddb8-11f0-547e-1364fbbf84a5 [observed]

 Occultation Date + Time   : 2025-12-18 at 18:03:35 UT +/- 0.08 min  [1]
 Object Designation        : (363341) 2002 QQ1
 Star Designation          : GDR3 3205615400479408128
 Star Coordinates (ICRF)   : RA = 04 29 02.3306, DE = -02 34 21.736  [2]
 Star Magnitudes           : G = 12.68 mag, RP = 12.08 mag, BP = 13.11 mag
 Object Magnitude          : V = 20.07 mag
 Estimated Magnitude Drop  : 7.4 mag
 Estimated Max. Duration   : 0.2 sec
 Speed of the shadow       : 11.8 km/s
 Object Mean Diameter      : 2.5 km  (src: astorb) => apparent = 2 mas
 Apparent Motion           : 0.4950 arcs/min @ PA = 294 deg
 Horizontal Parallax       : 4.4610 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 150° (sunlit = 2%), Sun = 148°
 Cross-track uncertainty   : 23.0 mas = 32 km = 13.15 path-width (1-sig)
 RUWE and duplicate source : 0.99 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#34
 Note                      : FP:true

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


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