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Stellar Occultation by (319) Leona on 2023-12-12 (01:17:16 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] : aa3579fb-2fa7-4a89-8452-bfc8a87e0704 [special]

 Occultation Date + Time   : 2023-12-12 at 01:17:16 UT +/- 0.03 min  [1]
 Object Designation        : (319) Leona
 Star Designation          : Betelgeuse
 Star Coordinates (ICRF)   : RA = 05 55 10.3439, DE = +07 24 25.647  [2]
 Object Magnitude          : V = 14.21 mag
 Estimated Magnitude Drop  : 13.7 mag
 Estimated Max. Duration   : 6.2 sec
 Object Mean Diameter      : 66 km  (src: Ortiz+2023)
 Orbital Class             : MBA
 Speed of the shadow       : 10.7 km/s
 Elongation to Moon & Sun  : 152° (sunlit = 1%), Sun = 162°
 Cross-track uncertainty   : 4.4 mas = 5 km = 0.09 path-width (1-sig)

 Ephemeris Reference       : JPLH#69 (23-09-19)
 Note                      : Pos+PM: UBAD+Harp17  Campaign webpage

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


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