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Stellar Occultation by (319) Leona on 2025-04-18 (05:30:20 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] : 60eb1840-df12-11ef-7f69-edd2bbd75275 [special]

 Occultation Date + Time   : 2025-04-18 at 05:30:20 UT +/- 0.01 min  [1]
 Object Designation        : (319) Leona
 Star Designation          : GDR3 3858048764129420032
 Star Coordinates (ICRF)   : RA = 10 50 55.1648, DE = +04 29 58.331  [2]
 Star Magnitudes           : G = 9.07 mag, RP = 7.68 mag, BP = 11.62 mag
 Object Magnitude          : V = 16.0 mag
 Estimated Magnitude Drop  : 6.9 mag
 Estimated Max. Duration   : 8.0 sec
 Object Mean Diameter      : 57.2 km  (src: CORA)
 Orbital Class             : MBA
 Speed of the shadow       : 7.2 km/s
 Elongation to Moon & Sun  : 103° (sunlit = 77%), Sun = 134°
 Cross-track uncertainty   : 0.6 mas = 1 km = 0.02 path-width (1-sig)
 RUWE and duplicate source : 1.11 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#76

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


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