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Stellar Occultation by (71528) 2000 CY84 on 2025-08-20 (21:25:23 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] : c272a6a0-ddb8-11f0-547e-09ececcc9e2f [observed] Occultation Date + Time : 2025-08-20 at 21:25:23 UT +/- 0.01 min [1] Object Designation : (71528) 2000 CY84 Star Designation : GDR3 0115603133580922624 Star Coordinates (ICRF) : RA = 03 08 46.2371, DE = +27 15 20.700 [2] Star Magnitudes : G = 9.58 mag, RP = 8.77 mag, BP = 10.28 mag Object Magnitude : V = 19.86 mag Estimated Magnitude Drop : 10.3 mag Estimated Max. Duration : 0.4 sec Speed of the shadow : 13.8 km/s Object Mean Diameter : 5.7 km (src: astorb) => apparent = 3 mas Apparent Motion : 0.3733 arcs/min @ PA = 49 deg Horizontal Parallax : 2.8840 arcs Dynamical Class : MBA Elongation to Moon & Sun : 66° (sunlit = 6%), Sun = 96° Cross-track uncertainty : 1.0 mas = 2 km = 0.39 path-width (1-sig) RUWE and duplicate source : 1.1 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#52 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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