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Stellar Occultation by (160884) 2001 QT39 on 2024-09-28 (20:06:52 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] : 73981090-ddb5-11f0-547e-c182fff5c387 [observed] Occultation Date + Time : 2024-09-28 at 20:06:52 UT +/- 0.02 min [1] Object Designation : (160884) 2001 QT39 Star Designation : GDR3 6865472585205246464 Star Coordinates (ICRF) : RA = 19 50 31.2356, DE = -20 57 43.794 [2] Star Magnitudes : G = 13.5 mag, RP = 12.77 mag, BP = 14.08 mag Object Magnitude : V = 20.66 mag Estimated Magnitude Drop : 7.2 mag Estimated Max. Duration : 0.6 sec Speed of the shadow : 5.5 km/s Object Mean Diameter : 3.4 km (src: astorb) => apparent = 2 mas Apparent Motion : 0.1650 arcs/min @ PA = 97 deg Horizontal Parallax : 3.1860 arcs Dynamical Class : MBA Elongation to Moon & Sun : 152° (sunlit = 14%), Sun = 109° Cross-track uncertainty : 1.0 mas = 2 km = 0.59 path-width (1-sig) RUWE and duplicate source : 1.0 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#42 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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