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Stellar Occultation by (165949) 2001 WY1 on 2024-09-29 (02:42:05 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] : 73acf820-ddb5-11f0-547e-b1da57eb7c54 [observed] Occultation Date + Time : 2024-09-29 at 02:42:05 UT +/- 0.22 min [1] Object Designation : (165949) 2001 WY1 Star Designation : GDR3 0021925846701368832 Star Coordinates (ICRF) : RA = 02 42 32.6564, DE = +10 22 19.051 [2] Star Magnitudes : G = 12.83 mag, RP = 12.13 mag, BP = 13.39 mag Object Magnitude : V = 18.29 mag Estimated Magnitude Drop : 5.5 mag Estimated Max. Duration : 0.3 sec Speed of the shadow : 14.2 km/s Object Mean Diameter : 3.6 km (src: astorb) => apparent = 3 mas Apparent Motion : 0.8217 arcs/min @ PA = 189 deg Horizontal Parallax : 6.1600 arcs Dynamical Class : MBA Elongation to Moon & Sun : 105° (sunlit = 12%), Sun = 145° Cross-track uncertainty : 21.7 mas = 22 km = 6.24 path-width (1-sig) RUWE and duplicate source : 1.07 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#36 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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