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Stellar Occultation by (66076) 1998 RD53 on 2025-10-27 (02:01:41 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] : a4d8adb0-ddb8-11f0-547e-6723d7ed4d0f [observed] Occultation Date + Time : 2025-10-27 at 02:01:41 UT +/- 0.02 min [1] Object Designation : (66076) 1998 RD53 Star Designation : GDR3 0939455239084657408 Star Coordinates (ICRF) : RA = 06 55 49.7738, DE = +34 47 34.702 [2] Star Magnitudes : G = 12.4 mag, RP = 11.69 mag, BP = 12.92 mag Object Magnitude : V = 18.59 mag Estimated Magnitude Drop : 6.2 mag Estimated Max. Duration : 1.0 sec Speed of the shadow : 7.3 km/s Object Mean Diameter : 7.0 km (src: astorb) => apparent = 4 mas Apparent Motion : 0.2550 arcs/min @ PA = 55 deg Horizontal Parallax : 3.7120 arcs Dynamical Class : MBA Elongation to Moon & Sun : 170° (sunlit = 26%), Sun = 112° Cross-track uncertainty : 3.1 mas = 5 km = 0.76 path-width (1-sig) RUWE and duplicate source : 31.27 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#61 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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