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Stellar Occultation by (11574) d'Alviella on 2024-12-26 (21:39:39 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] : d3131e70-ddb5-11f0-547e-4ee89fdd9dbf [observed] Occultation Date + Time : 2024-12-26 at 21:39:39 UT +/- 0.01 min [1] Object Designation : (11574) d'Alviella Star Designation : GDR3 3330468931548560000 Star Coordinates (ICRF) : RA = 06 23 28.8857, DE = +10 14 46.364 [2] Star Magnitudes : G = 13.84 mag, RP = 13.3 mag, BP = 13.94 mag Object Magnitude : V = 17.66 mag Estimated Magnitude Drop : 3.9 mag Estimated Max. Duration : 0.4 sec Speed of the shadow : 13.2 km/s Object Mean Diameter : 4.6 km (src: astorb) => apparent = 4 mas Apparent Motion : 0.7250 arcs/min @ PA = 286 deg Horizontal Parallax : 5.8450 arcs Dynamical Class : MBA Elongation to Moon & Sun : 130° (sunlit = 16%), Sun = 167° Cross-track uncertainty : 2.6 mas = 2 km = 0.62 path-width (1-sig) RUWE and duplicate source : 14.52 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#60 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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