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Stellar Occultation by (296817) 2009 WF3 on 2024-12-17 (00:55:54 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] : bfeb3fd0-ddb5-11f0-547e-03a7b5cf508a [observed] Occultation Date + Time : 2024-12-17 at 00:55:54 UT +/- 0.16 min [1] Object Designation : (296817) 2009 WF3 Star Designation : GDR3 0664614101357573376 Star Coordinates (ICRF) : RA = 08 36 36.4033, DE = +20 47 48.065 [2] Star Magnitudes : G = 11.1 mag, RP = 10.45 mag, BP = 11.58 mag Object Magnitude : V = 20.88 mag Estimated Magnitude Drop : 9.8 mag Estimated Max. Duration : 0.7 sec Speed of the shadow : 10.5 km/s Object Mean Diameter : 7.1 km (src: astorb) => apparent = 2 mas Apparent Motion : 0.1883 arcs/min @ PA = 292 deg Horizontal Parallax : 1.9110 arcs Dynamical Class : JTRO Elongation to Moon & Sun : 19° (sunlit = 97%), Sun = 139° Cross-track uncertainty : 20.7 mas = 69 km = 9.73 path-width (1-sig) RUWE and duplicate source : 1.79 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#30 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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