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Stellar Occultation by (87616) 2000 RR47 on 2025-10-18 (00:10:58 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] : 930d9ff0-ddb8-11f0-547e-e218dff3b74e [observed] Occultation Date + Time : 2025-10-18 at 00:10:58 UT +/- 0.02 min [1] Object Designation : (87616) 2000 RR47 Star Designation : GDR3 0228468036534051456 Star Coordinates (ICRF) : RA = 04 28 02.2281, DE = +42 41 42.971 [2] Star Magnitudes : G = 13.44 mag, RP = 12.28 mag, BP = 14.91 mag Object Magnitude : V = 19.07 mag Estimated Magnitude Drop : 5.6 mag Estimated Max. Duration : 0.4 sec Speed of the shadow : 8.3 km/s Object Mean Diameter : 3.2 km (src: astorb) => apparent = 3 mas Apparent Motion : 0.4167 arcs/min @ PA = 328 deg Horizontal Parallax : 5.3390 arcs Dynamical Class : MBA Elongation to Moon & Sun : 93° (sunlit = 11%), Sun = 129° Cross-track uncertainty : 1.0 mas = 1 km = 0.37 path-width (1-sig) RUWE and duplicate source : 1.0 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#40 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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