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Stellar Occultation by (319) Leona on 2023-12-12 (01:17:12 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] : 5e60fc55-d170-4053-bc09-8318611aee00 [special]

 Occultation Date + Time   : 2023-12-12 at 01:17:12 UT +/- 0.03 min  [1]
 Object Designation        : (319) Leona
 Star Designation          : Betelgeuse-UBAD-HARP
 Star Coordinates (ICRF)   : RA = 05 55 10.3432, DE = +07 24 25.640  [2]
 Object Magnitude          : V = 14.2 mag
 Estimated Magnitude Drop  : 13.7 mag
 Estimated Max. Duration   : 6.2 sec
 Speed of the shadow       : 10.7 km/s
 Object Mean Diameter      : 66.0 km  (src: Ortiz+2023) => apparent = 50 mas
 Apparent Motion           : 0.4883 arcs/min @ PA = 262 deg
 Horizontal Parallax       : 4.8640 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 152° (sunlit = 1%), Sun = 162°
 Cross-track uncertainty   : 7.9 mas = 10 km = 0.16 path-width (1-sig)

 Ephemeris Reference       : CORAv1a (23-09-20)
 Note                      : Campaign webpage

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


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