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Stellar Occultation by (439987) 2001 XS146 on 2023-07-28 (23:50:22 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] : dc869f60-ddb3-11f0-547e-1c132f53730f [observed] Occultation Date + Time : 2023-07-28 at 23:50:22 UT +/- 0.13 min [1] Object Designation : (439987) 2001 XS146 Star Designation : GDR3 2662308325366749568 Star Coordinates (ICRF) : RA = 23 10 07.6571, DE = +04 29 04.952 [2] Star Magnitudes : G = 13.72 mag, RP = 13.06 mag, BP = 14.21 mag Object Magnitude : V = 21.32 mag Estimated Magnitude Drop : 7.6 mag Estimated Max. Duration : 0.5 sec Speed of the shadow : 7.1 km/s Object Mean Diameter : 3.3 km (src: astorb) => apparent = 1 mas Apparent Motion : 0.1800 arcs/min @ PA = 276 deg Horizontal Parallax : 2.7050 arcs Dynamical Class : MBA Elongation to Moon & Sun : 97° (sunlit = 81%), Sun = 135° Cross-track uncertainty : 22.0 mas = 51 km = 15.72 path-width (1-sig) RUWE and duplicate source : 1.85 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#28 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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