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Stellar Occultation by (4156) Okadanoboru on 2026-10-10 (18:58:59 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] : a9724e10-d9b3-11f1-43f3-889ddba5ec42 [observed]

 Occultation Date + Time   : 2026-10-10 at 18:58:59 UT +/- 0.01 min  [1]
 Object Designation        : (4156) Okadanoboru
 Star Designation          : GDR3 2708061679962984832
 Star Coordinates (ICRF)   : RA = 22 15 09.0940, DE = +05 10 54.241  [2]
 Star Magnitudes           : G = 15.66 mag, RP = 14.9 mag, BP = 16.3 mag
 Object Magnitude          : V = 16.5 mag
 Estimated Magnitude Drop  : 1.3 mag
 Estimated Max. Duration   : 1.9 sec
 Speed of the shadow       : 5.9 km/s
 Object Mean Diameter      : 11.2 km  (src: astorb) => apparent = 9 mas
 Apparent Motion           : 0.2800 arcs/min @ PA = 246 deg
 Horizontal Parallax       : 5.0850 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 138° (sunlit = 0%), Sun = 138°
 Cross-track uncertainty   : 1.1 mas = 1 km = 0.12 path-width (1-sig)
 RUWE and duplicate source : 0.99 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL62
 Note                      : FP:true

 
 [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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