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Stellar Occultation by (3139) Shantou on 2024-10-23 (19:48:47 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] : 8d7ffe00-ddb5-11f0-547e-674ed775d914 [observed]

 Occultation Date + Time   : 2024-10-23 at 19:48:47 UT +/- 0.0 min  [1]
 Object Designation        : (3139) Shantou
 Star Designation          : GDR3 4251626063856770176
 Star Coordinates (ICRF)   : RA = 18 46 56.7080, DE = -08 18 21.592  [2]
 Star Magnitudes           : G = 13.0 mag, RP = 12.09 mag, BP = 13.86 mag
 Object Magnitude          : V = 16.94 mag
 Estimated Magnitude Drop  : 4.0 mag
 Estimated Max. Duration   : 1.7 sec
 Speed of the shadow       : 25.1 km/s
 Object Mean Diameter      : 41.7 km  (src: astorb) => apparent = 17 mas
 Apparent Motion           : 0.6233 arcs/min @ PA = 90 deg
 Horizontal Parallax       : 2.6400 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 157° (sunlit = 55%), Sun = 72°
 Cross-track uncertainty   : 0.3 mas = 0 km = 0.02 path-width (1-sig)
 RUWE and duplicate source : 0.82 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#80
 Note                      : FP:true

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


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