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Stellar Occultation by (58166) 1990 OF3 on 2024-10-20 (20:00:44 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] : 90904b40-ddb5-11f0-547e-41dfffed4d62 [observed] Occultation Date + Time : 2024-10-20 at 20:00:44 UT +/- 0.03 min [1] Object Designation : (58166) 1990 OF3 Star Designation : GDR3 0176240856256102912 Star Coordinates (ICRF) : RA = 04 26 15.1709, DE = +34 42 55.909 [2] Star Magnitudes : G = 8.2 mag, RP = 7.73 mag, BP = 8.46 mag Object Magnitude : V = 18.98 mag Estimated Magnitude Drop : 10.8 mag Estimated Max. Duration : 0.7 sec Speed of the shadow : 6.5 km/s Object Mean Diameter : 4.7 km (src: astorb) => apparent = 3 mas Apparent Motion : 0.2600 arcs/min @ PA = 270 deg Horizontal Parallax : 4.2700 arcs Dynamical Class : MBA Elongation to Moon & Sun : 9° (sunlit = 85%), Sun = 136° Cross-track uncertainty : 2.7 mas = 4 km = 0.86 path-width (1-sig) RUWE and duplicate source : 2.61 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#49 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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