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Stellar Occultation by (109200) 2001 QA78 on 2024-12-20 (21:09:30 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] : c3ba7040-ddb5-11f0-547e-e20d4fbe5433 [observed] Occultation Date + Time : 2024-12-20 at 21:09:30 UT +/- 0.0 min [1] Object Designation : (109200) 2001 QA78 Star Designation : GDR3 3322861925987967232 Star Coordinates (ICRF) : RA = 05 52 59.5585, DE = +07 11 00.426 [2] Star Magnitudes : G = 11.52 mag, RP = 10.73 mag, BP = 12.19 mag Object Magnitude : V = 17.94 mag Estimated Magnitude Drop : 6.4 mag Estimated Max. Duration : 0.4 sec Speed of the shadow : 10.3 km/s Object Mean Diameter : 3.8 km (src: astorb) => apparent = 4 mas Apparent Motion : 0.5983 arcs/min @ PA = 256 deg Horizontal Parallax : 6.1710 arcs Dynamical Class : MBA Elongation to Moon & Sun : 70° (sunlit = 69%), Sun = 164° Cross-track uncertainty : 0.7 mas = 0 km = 0.19 path-width (1-sig) RUWE and duplicate source : 1.89 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#46 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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