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Stellar Occultation by (194) Prokne on 2026-04-06 (21:33:30 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] : 40b6adc0-33bf-11f1-6999-4063fbde3d66 [asteroids]

 Occultation Date + Time   : 2026-04-06 at 21:33:30 UT +/- 0.0 min  [1]
 Object Designation        : (194) Prokne
 Star Designation          : GDR3 3159106574023123968
 Star Coordinates (ICRF)   : RA = 06 53 41.0301, DE = +11 02 03.241  [2]
 Star Magnitudes           : G = 12.79 mag, RP = 12.35 mag, BP = 13.06 mag
 Object Magnitude          : V = 13.71 mag
 Estimated Magnitude Drop  : 1.3 mag
 Estimated Max. Duration   : 9.4 sec
 Speed of the shadow       : 17.9 km/s
 Object Mean Diameter      : 168.4 km  (src: astorb) => apparent = 76 mas
 Apparent Motion           : 0.4817 arcs/min @ PA = 66 deg
 Horizontal Parallax       : 2.8720 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 144° (sunlit = 80%), Sun = 86°
 Cross-track uncertainty   : 1.0 mas = 2 km = 0.01 path-width (1-sig)
 RUWE and duplicate source : 1.24 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#171
 Note                      : FP:true

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


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