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Stellar Occultation by (25540) 1999 XQ159 on 2024-10-30 (01:03:01 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] : 94eb19e0-ddb5-11f0-547e-886bed7cd990 [observed] Occultation Date + Time : 2024-10-30 at 01:03:01 UT +/- 0.01 min [1] Object Designation : (25540) 1999 XQ159 Star Designation : GDR3 3361597858074284672 Star Coordinates (ICRF) : RA = 07 09 43.2020, DE = +18 14 00.797 [2] Star Magnitudes : G = 10.86 mag, RP = 10.12 mag, BP = 11.47 mag Object Magnitude : V = 18.52 mag Estimated Magnitude Drop : 7.7 mag Estimated Max. Duration : 0.8 sec Speed of the shadow : 6.0 km/s Object Mean Diameter : 4.5 km (src: astorb) => apparent = 4 mas Apparent Motion : 0.2867 arcs/min @ PA = 89 deg Horizontal Parallax : 5.0370 arcs Dynamical Class : MBA Elongation to Moon & Sun : 83° (sunlit = 5%), Sun = 110° Cross-track uncertainty : 0.3 mas = 0 km = 0.08 path-width (1-sig) RUWE and duplicate source : 0.99 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#56 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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