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Stellar Occultation by (230647) 2003 SN11 on 2025-08-12 (21:44:46 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] : 3b2f88d0-ddb7-11f0-547e-1f4dffffb09d [observed] Occultation Date + Time : 2025-08-12 at 21:44:46 UT +/- 0.06 min [1] Object Designation : (230647) 2003 SN11 Star Designation : GDR3 6893174059107936512 Star Coordinates (ICRF) : RA = 21 30 43.9397, DE = -10 25 46.447 [2] Star Magnitudes : G = 13.74 mag, RP = 13.19 mag, BP = 14.11 mag Object Magnitude : V = 18.68 mag Estimated Magnitude Drop : 5.0 mag Estimated Max. Duration : 0.3 sec Speed of the shadow : 7.6 km/s Object Mean Diameter : 2.2 km (src: astorb) => apparent = 2 mas Apparent Motion : 0.4767 arcs/min @ PA = 249 deg Horizontal Parallax : 6.6850 arcs Dynamical Class : MBA Elongation to Moon & Sun : 45° (sunlit = 85%), Sun = 176° Cross-track uncertainty : 23.3 mas = 22 km = 10.10 path-width (1-sig) RUWE and duplicate source : 1.01 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#25 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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