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Stellar Occultation by (171056) 2005 ED121 on 2024-10-20 (20:43:57 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] : 8aadcb30-ddb5-11f0-547e-2cd86bff2025 [observed] Occultation Date + Time : 2024-10-20 at 20:43:57 UT +/- 0.03 min [1] Object Designation : (171056) 2005 ED121 Star Designation : GDR3 6885255582523241984 Star Coordinates (ICRF) : RA = 21 00 32.5327, DE = -14 22 40.500 [2] Star Magnitudes : G = 12.94 mag, RP = 12.35 mag, BP = 13.36 mag Object Magnitude : V = 20.6 mag Estimated Magnitude Drop : 7.7 mag Estimated Max. Duration : 0.4 sec Speed of the shadow : 8.5 km/s Object Mean Diameter : 3.5 km (src: astorb) => apparent = 2 mas Apparent Motion : 0.2550 arcs/min @ PA = 52 deg Horizontal Parallax : 3.1870 arcs Dynamical Class : MBA Elongation to Moon & Sun : 121° (sunlit = 84%), Sun = 105° Cross-track uncertainty : 3.3 mas = 6 km = 1.89 path-width (1-sig) RUWE and duplicate source : 3.14 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#35 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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