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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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