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Stellar Occultation by (194) Prokne on 2025-10-13 (04:09:30 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] : 8ea20870-ddb8-11f0-547e-2b9a7fed402b [observed]

 Occultation Date + Time   : 2025-10-13 at 04:09:30 UT +/- 0.0 min  [1]
 Object Designation        : (194) Prokne
 Star Designation          : GDR3 3136636232842781696
 Star Coordinates (ICRF)   : RA = 07 29 40.5010, DE = +03 49 19.804  [2]
 Star Magnitudes           : G = 14.54 mag, RP = 13.96 mag, BP = 14.96 mag
 Object Magnitude          : V = 13.38 mag
 Estimated Magnitude Drop  : 0.3 mag
 Estimated Max. Duration   : 10.6 sec
 Speed of the shadow       : 16.0 km/s
 Object Mean Diameter      : 168.4 km  (src: astorb) => apparent = 83 mas
 Apparent Motion           : 0.4733 arcs/min @ PA = 119 deg
 Horizontal Parallax       : 3.1530 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 25° (sunlit = 57%), Sun = 87°
 Cross-track uncertainty   : 0.7 mas = 1 km = 0.01 path-width (1-sig)
 RUWE and duplicate source : 1.1 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#170
 Note                      : FP:true

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


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