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Stellar Occultation by (90128) 2002 XL81 on 2025-11-17 (03:58:03 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] : bcf3a350-ddb8-11f0-547e-28e0d6d772f3 [observed] Occultation Date + Time : 2025-11-17 at 03:58:03 UT +/- 0.18 min [1] Object Designation : (90128) 2002 XL81 Star Designation : GDR3 0875445730861179648 Star Coordinates (ICRF) : RA = 07 52 35.4141, DE = +27 56 56.559 [2] Star Magnitudes : G = 14.39 mag, RP = 13.83 mag, BP = 14.78 mag Object Magnitude : V = 19.8 mag Estimated Magnitude Drop : 5.4 mag Estimated Max. Duration : 0.7 sec Speed of the shadow : 7.1 km/s Object Mean Diameter : 5.0 km (src: astorb) => apparent = 3 mas Apparent Motion : 0.2167 arcs/min @ PA = 12 deg Horizontal Parallax : 3.2270 arcs Dynamical Class : MBA Elongation to Moon & Sun : 87° (sunlit = 8%), Sun = 120° Cross-track uncertainty : 0.7 mas = 1 km = 0.28 path-width (1-sig) RUWE and duplicate source : 1.0 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#43 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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