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Stellar Occultation by (15519) 1999 XW on 2023-04-22 (22:02:58 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] : 91ad65f0-ddb3-11f0-547e-d58cfaedf44d [observed] Occultation Date + Time : 2023-04-22 at 22:02:58 UT +/- 0.01 min [1] Object Designation : (15519) 1999 XW Star Designation : GDR3 3436696151517694976 Star Coordinates (ICRF) : RA = 06 11 23.5676, DE = +29 04 56.375 [2] Star Magnitudes : G = 12.99 mag, RP = 18.92 mag, BP = 21.24 mag Object Magnitude : V = 18.64 mag Estimated Magnitude Drop : 5.7 mag Estimated Max. Duration : 0.3 sec Speed of the shadow : 31.1 km/s Object Mean Diameter : 10.0 km (src: astorb) => apparent = 4 mas Apparent Motion : 0.7533 arcs/min @ PA = 89 deg Horizontal Parallax : 2.5810 arcs Dynamical Class : MBA Elongation to Moon & Sun : 26° (sunlit = 9%), Sun = 60° Cross-track uncertainty : 4.8 mas = 11 km = 1.19 path-width (1-sig) RUWE and duplicate source : 1.01 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#53 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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