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Stellar Occultation by (83538) 2001 SD164 on 2023-10-29 (18:26:56 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] : 300a7990-ddb4-11f0-547e-b73eff7e90e7 [observed] Occultation Date + Time : 2023-10-29 at 18:26:56 UT +/- 0.0 min [1] Object Designation : (83538) 2001 SD164 Star Designation : GDR3 2424909436918990464 Star Coordinates (ICRF) : RA = 00 19 59.6197, DE = -11 18 24.295 [2] Star Magnitudes : G = 12.23 mag, RP = 11.42 mag, BP = 12.94 mag Object Magnitude : V = 19.62 mag Estimated Magnitude Drop : 7.4 mag Estimated Max. Duration : 0.4 sec Speed of the shadow : 14.5 km/s Object Mean Diameter : 5.0 km (src: astorb) => apparent = 3 mas Apparent Motion : 0.4567 arcs/min @ PA = 289 deg Horizontal Parallax : 3.3610 arcs Dynamical Class : MBA Elongation to Moon & Sun : 50° (sunlit = 99%), Sun = 142° Cross-track uncertainty : 1.0 mas = 1 km = 0.38 path-width (1-sig) RUWE and duplicate source : 1.0 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#42 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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