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Stellar Occultation by (98) Ianthe on 2025-10-06 (04:19:43 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] : 83f26ff0-ddb8-11f0-547e-f8c7ef4fe440 [observed]

 Occultation Date + Time   : 2025-10-06 at 04:19:43 UT +/- 0.01 min  [1]
 Object Designation        : (98) Ianthe
 Star Designation          : GDR3 0191377081220322944
 Star Coordinates (ICRF)   : RA = 05 38 09.2400, DE = +41 17 33.974  [2]
 Star Magnitudes           : G = 14.32 mag, RP = 13.42 mag, BP = 14.47 mag
 Object Magnitude          : V = 13.69 mag
 Estimated Magnitude Drop  : 0.5 mag
 Estimated Max. Duration   : 8.3 sec
 Speed of the shadow       : 12.6 km/s
 Object Mean Diameter      : 104.5 km  (src: astorb) => apparent = 68 mas
 Apparent Motion           : 0.4917 arcs/min @ PA = 46 deg
 Horizontal Parallax       : 4.1650 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 86° (sunlit = 99%), Sun = 107°
 Cross-track uncertainty   : 2.4 mas = 3 km = 0.04 path-width (1-sig)
 RUWE and duplicate source : 7.15 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#125
 Note                      : FP:true

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


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