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Stellar Occultation by (363135) 2001 QQ199 on 2024-08-07 (22:04:29 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] : 2ff8a9d0-ddb5-11f0-547e-0ac9ff63ae30 [observed] Occultation Date + Time : 2024-08-07 at 22:04:29 UT +/- 0.06 min [1] Object Designation : (363135) 2001 QQ199 Star Designation : GDR3 4538403435300697472 Star Coordinates (ICRF) : RA = 18 51 40.1313, DE = +27 50 41.287 [2] Star Magnitudes : G = 10.15 mag, RP = 9.89 mag, BP = 10.3 mag Object Magnitude : V = 20.1 mag Estimated Magnitude Drop : 10.0 mag Estimated Max. Duration : 0.6 sec Speed of the shadow : 16.3 km/s Object Mean Diameter : 9.8 km (src: astorb) => apparent = 3 mas Apparent Motion : 0.3050 arcs/min @ PA = 234 deg Horizontal Parallax : 1.9930 arcs Dynamical Class : MBA Elongation to Moon & Sun : 104° (sunlit = 11%), Sun = 124° Cross-track uncertainty : 5.7 mas = 18 km = 1.86 path-width (1-sig) RUWE and duplicate source : 2.76 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#38 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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