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Stellar Occultation by (246817) 2009 KH1 on 2023-08-03 (22:28:52 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] : dfa3bde0-ddb3-11f0-547e-06fdffb7edd3 [observed] Occultation Date + Time : 2023-08-03 at 22:28:52 UT +/- 0.04 min [1] Object Designation : (246817) 2009 KH1 Star Designation : GDR3 4315195084482042112 Star Coordinates (ICRF) : RA = 19 39 37.3586, DE = +11 56 11.813 [2] Star Magnitudes : G = 9.79 mag, RP = 8.36 mag, BP = 12.34 mag Object Magnitude : V = 20.01 mag Estimated Magnitude Drop : 10.2 mag Estimated Max. Duration : 0.6 sec Speed of the shadow : 15.6 km/s Object Mean Diameter : 9.2 km (src: astorb) => apparent = 3 mas Apparent Motion : 0.3067 arcs/min @ PA = 250 deg Horizontal Parallax : 2.0880 arcs Dynamical Class : JTRO Elongation to Moon & Sun : 54° (sunlit = 93%), Sun = 145° Cross-track uncertainty : 3.3 mas = 10 km = 1.10 path-width (1-sig) RUWE and duplicate source : 1.05 mas, dup.src = 1 (0:false, 1:true) Ephemeris Reference : JPL#34 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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