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Stellar Occultation by (264071) 2009 SW159 on 2023-12-23 (20:42:27 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] : 4bd753a0-ddb4-11f0-547e-aae0c3f6d8b7 [observed] Occultation Date + Time : 2023-12-23 at 20:42:27 UT +/- 0.09 min [1] Object Designation : (264071) 2009 SW159 Star Designation : GDR3 0936958316897112320 Star Coordinates (ICRF) : RA = 06 49 29.4015, DE = +31 38 50.099 [2] Star Magnitudes : G = 11.89 mag, RP = 11.09 mag, BP = 12.57 mag Object Magnitude : V = 20.7 mag Estimated Magnitude Drop : 8.8 mag Estimated Max. Duration : 0.4 sec Speed of the shadow : 16.2 km/s Object Mean Diameter : 5.6 km (src: astorb) => apparent = 2 mas Apparent Motion : 0.3350 arcs/min @ PA = 277 deg Horizontal Parallax : 2.1970 arcs Dynamical Class : JTRO Elongation to Moon & Sun : 47° (sunlit = 89%), Sun = 168° Cross-track uncertainty : 28.0 mas = 81 km = 14.52 path-width (1-sig) RUWE and duplicate source : 1.13 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#26 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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