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Stellar Occultation by (458) Hercynia on 2024-08-28 (21:16:05 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] : 4cabc530-ddb5-11f0-547e-7f4ee7e245c5 [observed] Occultation Date + Time : 2024-08-28 at 21:16:05 UT +/- 0.01 min [1] Object Designation : (458) Hercynia Star Designation : GDR3 6836638335142743168 Star Coordinates (ICRF) : RA = 21 47 44.8130, DE = -18 19 03.405 [2] Star Magnitudes : G = 11.31 mag, RP = 10.66 mag, BP = 11.81 mag Object Magnitude : V = 13.57 mag Estimated Magnitude Drop : 2.4 mag Estimated Max. Duration : 3.3 sec Speed of the shadow : 11.8 km/s Object Mean Diameter : 38.8 km (src: astorb) => apparent = 31 mas Apparent Motion : 0.5600 arcs/min @ PA = 233 deg Horizontal Parallax : 5.0360 arcs Dynamical Class : MBA Elongation to Moon & Sun : 134° (sunlit = 24%), Sun = 166° Cross-track uncertainty : 0.7 mas = 0 km = 0.02 path-width (1-sig) RUWE and duplicate source : 0.84 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#120 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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