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Stellar Occultation by (337451) 2001 RS85 on 2023-10-19 (02:53:32 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] : 2bff2a80-ddb4-11f0-547e-c68f67fdfb8f [observed] Occultation Date + Time : 2023-10-19 at 02:53:32 UT +/- 1.18 min [1] Object Designation : (337451) 2001 RS85 Star Designation : GDR3 0187872594064740352 Star Coordinates (ICRF) : RA = 05 16 39.9565, DE = +39 02 38.822 [2] Star Magnitudes : G = 10.38 mag, RP = 10.01 mag, BP = 10.6 mag Object Magnitude : V = 20.2 mag Estimated Magnitude Drop : 9.8 mag Estimated Max. Duration : 0.4 sec Speed of the shadow : 7.2 km/s Object Mean Diameter : 2.5 km (src: astorb) => apparent = 2 mas Apparent Motion : 0.3017 arcs/min @ PA = 7 deg Horizontal Parallax : 4.4790 arcs Dynamical Class : MBA Elongation to Moon & Sun : 168° (sunlit = 19%), Sun = 123° Cross-track uncertainty : 27.7 mas = 39 km = 15.78 path-width (1-sig) RUWE and duplicate source : 0.97 mas, dup.src = 1 (0:false, 1:true) Ephemeris Reference : JPL#23 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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