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Stellar Occultation by (194) Prokne on 2026-10-21 (03:47:51 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] : 80a3b8b0-d9b4-11f1-43f3-c7afedfff7fc [observed]

 Occultation Date + Time   : 2026-10-21 at 03:47:51 UT +/- 0.0 min  [1]
 Object Designation        : (194) Prokne
 Star Designation          : GDR3 3815979422025540992
 Star Coordinates (ICRF)   : RA = 10 54 00.6682, DE = +04 27 51.794  [2]
 Star Magnitudes           : G = 11.33 mag, RP = 10.83 mag, BP = 11.66 mag
 Object Magnitude          : V = 14.06 mag
 Estimated Magnitude Drop  : 2.8 mag
 Estimated Max. Duration   : 4.8 sec
 Speed of the shadow       : 34.8 km/s
 Object Mean Diameter      : 168.4 km  (src: astorb) => apparent = 60 mas
 Apparent Motion           : 0.7433 arcs/min @ PA = 106 deg
 Horizontal Parallax       : 2.2730 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 162° (sunlit = 73%), Sun = 45°
 Cross-track uncertainty   : 0.7 mas = 1 km = 0.01 path-width (1-sig)
 RUWE and duplicate source : 0.77 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL172
 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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