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Stellar Occultation by (104606) 2000 GS99 on 2023-09-24 (18:18:54 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] : 13098c50-ddb4-11f0-547e-8ee9f5efa4ef [observed] Occultation Date + Time : 2023-09-24 at 18:18:54 UT +/- 0.02 min [1] Object Designation : (104606) 2000 GS99 Star Designation : GDR3 4202774727822074880 Star Coordinates (ICRF) : RA = 18 57 25.8098, DE = -09 48 42.533 [2] Star Magnitudes : G = 12.73 mag, RP = 11.34 mag, BP = 15.15 mag Object Magnitude : V = 20.0 mag Estimated Magnitude Drop : 7.3 mag Estimated Max. Duration : 0.3 sec Speed of the shadow : 12.3 km/s Object Mean Diameter : 3.9 km (src: astorb) => apparent = 2 mas Apparent Motion : 0.4067 arcs/min @ PA = 107 deg Horizontal Parallax : 3.5140 arcs Dynamical Class : MBA Elongation to Moon & Sun : 22° (sunlit = 72%), Sun = 103° Cross-track uncertainty : 1.4 mas = 2 km = 0.65 path-width (1-sig) RUWE and duplicate source : 1.05 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#50 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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