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Stellar Occultation by (1234) Elyna on 2025-09-23 (21:34:50 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] : 72c66150-ddb8-11f0-547e-81bebf64b8e0 [observed] Occultation Date + Time : 2025-09-23 at 21:34:50 UT +/- 0.01 min [1] Object Designation : (1234) Elyna Star Designation : GDR3 2782441653012156800 Star Coordinates (ICRF) : RA = 00 37 13.9519, DE = +17 05 52.789 [2] Star Magnitudes : G = 13.4 mag, RP = 12.94 mag, BP = 13.7 mag Object Magnitude : V = 14.96 mag Estimated Magnitude Drop : 1.8 mag Estimated Max. Duration : 2.5 sec Speed of the shadow : 10.6 km/s Object Mean Diameter : 26.0 km (src: astorb) => apparent = 20 mas Apparent Motion : 0.4850 arcs/min @ PA = 259 deg Horizontal Parallax : 4.8780 arcs Dynamical Class : MBA Elongation to Moon & Sun : 167° (sunlit = 4%), Sun = 161° Cross-track uncertainty : 1.3 mas = 1 km = 0.07 path-width (1-sig) RUWE and duplicate source : 0.98 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#76 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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