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Stellar Occultation by (103143) 1999 XY208 on 2024-09-30 (03:33:26 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] : 767e67a0-ddb5-11f0-547e-a36867dfec82 [observed] Occultation Date + Time : 2024-09-30 at 03:33:26 UT +/- 0.06 min [1] Object Designation : (103143) 1999 XY208 Star Designation : GDR3 0170705815942096640 Star Coordinates (ICRF) : RA = 04 07 32.1758, DE = +33 53 56.273 [2] Star Magnitudes : G = 11.39 mag, RP = 10.61 mag, BP = 12.05 mag Object Magnitude : V = 19.4 mag Estimated Magnitude Drop : 8.0 mag Estimated Max. Duration : 0.5 sec Speed of the shadow : 6.5 km/s Object Mean Diameter : 2.9 km (src: astorb) => apparent = 2 mas Apparent Motion : 0.3217 arcs/min @ PA = 30 deg Horizontal Parallax : 5.2720 arcs Dynamical Class : MBA Elongation to Moon & Sun : 92° (sunlit = 6%), Sun = 120° Cross-track uncertainty : 2.3 mas = 2 km = 0.96 path-width (1-sig) RUWE and duplicate source : 1.26 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#33 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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