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Stellar Occultation by (461256) 2015 XR9 on 2024-07-03 (22:04:49 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] : ed887440-ddb4-11f0-547e-7cbd6fded9c2 [observed] Occultation Date + Time : 2024-07-03 at 22:04:49 UT +/- 0.1 min [1] Object Designation : (461256) 2015 XR9 Star Designation : GDR3 4124262721317741952 Star Coordinates (ICRF) : RA = 17 29 57.3863, DE = -17 35 40.745 [2] Star Magnitudes : G = 12.37 mag, RP = 11.33 mag, BP = 13.48 mag Object Magnitude : V = 19.96 mag Estimated Magnitude Drop : 7.6 mag Estimated Max. Duration : 0.2 sec Speed of the shadow : 11.9 km/s Object Mean Diameter : 2.9 km (src: astorb) => apparent = 2 mas Apparent Motion : 0.4617 arcs/min @ PA = 252 deg Horizontal Parallax : 4.1120 arcs Dynamical Class : MBA Elongation to Moon & Sun : 168° (sunlit = 5%), Sun = 160° Cross-track uncertainty : 28.3 mas = 43 km = 15.14 path-width (1-sig) RUWE and duplicate source : 0.87 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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