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Stellar Occultation by (50000) Quaoar on 2026-06-24 (23:23:58 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] : eec1ac20-f929-11ef-4809-0548fef3f89d [cetnos]

 Occultation Date + Time   : 2026-06-24 at 23:23:58 UT +/- 0.33 min  [1]
 Object Designation        : (50000) Quaoar
 Star Designation          : GDR3 4101957517382719744
 Star Coordinates (ICRF)   : RA = 18 47 01.1864, DE = -14 47 42.095  [2]
 Star Magnitudes           : G = 17.87 mag, RP = 16.98 mag, BP = 18.7 mag
 Object Magnitude          : V = 18.73 mag
 Estimated Magnitude Drop  : 1.3 mag
 Estimated Max. Duration   : 46.2 sec
 Speed of the shadow       : 24.4 km/s
 Object Mean Diameter      : 1125.8 km  (src: CORA+astorb) => apparent = 37 mas
 Apparent Motion           : 0.0483 arcs/min @ PA = 267 deg
 Horizontal Parallax       : 0.2110 arcs
 Dynamical Class           : TNO
 Elongation to Moon & Sun  : 64° (sunlit = 79%), Sun = 169°
 Cross-track uncertainty   : 3.3 mas = 99 km = 0.09 path-width (1-sig)
 RUWE and duplicate source : 1.06 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL47

 Object is a <TNOs are Cool> target !

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


More Data and Informations
SiMDA | 3D Asteroid Catalogue | Johnston Archive | Star at CDS (Vizier) | JPL Small-Body Node | Minor Planet Center | Wikipedia
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