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Stellar Occultation by (87413) 2000 QU89 on 2025-10-17 (01:01:11 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] : 96365730-ddb8-11f0-547e-7d49db1ea53c [observed]

 Occultation Date + Time   : 2025-10-17 at 01:01:11 UT +/- 0.05 min  [1]
 Object Designation        : (87413) 2000 QU89
 Star Designation          : GDR3 0182073426141568256
 Star Coordinates (ICRF)   : RA = 05 16 47.2521, DE = +34 24 35.778  [2]
 Star Magnitudes           : G = 14.92 mag, RP = 14.28 mag, BP = 15.38 mag
 Object Magnitude          : V = 19.01 mag
 Estimated Magnitude Drop  : 4.1 mag
 Estimated Max. Duration   : 1.1 sec
 Speed of the shadow       : 3.4 km/s
 Object Mean Diameter      : 3.7 km  (src: astorb) => apparent = 3 mas
 Apparent Motion           : 0.1617 arcs/min @ PA = 21 deg
 Horizontal Parallax       : 5.0010 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 73° (sunlit = 18%), Sun = 122°
 Cross-track uncertainty   : 0.4 mas = 0 km = 0.14 path-width (1-sig)
 RUWE and duplicate source : 1.05 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#43
 Note                      : FP:true

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


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