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Stellar Occultation by (458749) 2011 QP74 on 2026-09-20 (01:56:45 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] : 342206c0-d9b1-11f1-43f3-5b5a4bff682c [observed]

 Occultation Date + Time   : 2026-09-20 at 01:56:45 UT +/- 0.12 min  [1]
 Object Designation        : (458749) 2011 QP74
 Star Designation          : GDR3 0944864973731923456
 Star Coordinates (ICRF)   : RA = 06 39 44.8825, DE = +38 43 32.688  [2]
 Star Magnitudes           : G = 12.52 mag, RP = 11.82 mag, BP = 12.56 mag
 Object Magnitude          : V = 21.86 mag
 Estimated Magnitude Drop  : 9.3 mag
 Estimated Max. Duration   : 0.3 sec
 Speed of the shadow       : 17.9 km/s
 Object Mean Diameter      : 6.0 km  (src: astorb) => apparent = 1 mas
 Apparent Motion           : 0.2650 arcs/min @ PA = 77 deg
 Horizontal Parallax       : 1.5750 arcs
 Dynamical Class           : JTRO
 Elongation to Moon & Sun  : 168° (sunlit = 62%), Sun = 80°
 Cross-track uncertainty   : 26.7 mas = 108 km = 18.02 path-width (1-sig)
 RUWE and duplicate source : 1.01 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL19
 Note                      : FP:true

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


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