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Stellar Occultation by (1473) Ounas on 2025-11-20 (00:49:21 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] : bc0a7bd0-ddb8-11f0-547e-64fafcf9d0ec [observed] Occultation Date + Time : 2025-11-20 at 00:49:21 UT +/- 0.0 min [1] Object Designation : (1473) Ounas Star Designation : GDR3 3336242192224862976 Star Coordinates (ICRF) : RA = 05 46 49.7893, DE = +09 39 46.115 [2] Star Magnitudes : G = 7.4 mag, RP = 6.73 mag, BP = 7.91 mag Object Magnitude : V = 15.48 mag Estimated Magnitude Drop : 8.1 mag Estimated Max. Duration : 1.7 sec Speed of the shadow : 10.5 km/s Object Mean Diameter : 17.6 km (src: astorb) => apparent = 16 mas Apparent Motion : 0.5683 arcs/min @ PA = 236 deg Horizontal Parallax : 5.7260 arcs Dynamical Class : MBA Elongation to Moon & Sun : 144° (sunlit = 0%), Sun = 148° Cross-track uncertainty : 0.4 mas = 0 km = 0.03 path-width (1-sig) RUWE and duplicate source : 1.0 mas, dup.src = 1 (0:false, 1:true) Ephemeris Reference : JPL#67 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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