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Stellar Occultation by (4055) Magellan on 2025-10-08 (00:09:53 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] : 86f5ebf0-ddb8-11f0-547e-01c87faf4c01 [observed] Occultation Date + Time : 2025-10-08 at 00:09:53 UT +/- 0.01 min [1] Object Designation : (4055) Magellan Star Designation : GDR3 3009881714893006976 Star Coordinates (ICRF) : RA = 05 30 15.8860, DE = -11 45 50.888 [2] Star Magnitudes : G = 12.83 mag, RP = 12.11 mag, BP = 13.39 mag Object Magnitude : V = 17.31 mag Estimated Magnitude Drop : 4.5 mag Estimated Max. Duration : 0.3 sec Speed of the shadow : 11.2 km/s Object Mean Diameter : 3.6 km (src: astorb) => apparent = 5 mas Apparent Motion : 0.9650 arcs/min @ PA = 162 deg Horizontal Parallax : 9.1980 arcs Dynamical Class : NEO Elongation to Moon & Sun : 64° (sunlit = 99%), Sun = 109° Cross-track uncertainty : 1.3 mas = 0 km = 0.25 path-width (1-sig) RUWE and duplicate source : 1.05 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#927 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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