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Stellar Occultation by (170885) 2004 RH79 on 2025-10-01 (20:15:27 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] : 7cd28de0-ddb8-11f0-547e-1ff4fff65b23 [observed] Occultation Date + Time : 2025-10-01 at 20:15:27 UT +/- 0.07 min [1] Object Designation : (170885) 2004 RH79 Star Designation : GDR3 2586034516552883840 Star Coordinates (ICRF) : RA = 01 32 20.1770, DE = +12 15 38.372 [2] Star Magnitudes : G = 9.94 mag, RP = 9.24 mag, BP = 10.5 mag Object Magnitude : V = 18.73 mag Estimated Magnitude Drop : 8.8 mag Estimated Max. Duration : 0.3 sec Speed of the shadow : 7.3 km/s Object Mean Diameter : 1.80 km (src: astorb) => apparent = 2 mas Apparent Motion : 0.5567 arcs/min @ PA = 232 deg Horizontal Parallax : 8.0670 arcs Dynamical Class : MBA Elongation to Moon & Sun : 86° (sunlit = 68%), Sun = 163° Cross-track uncertainty : 20.3 mas = 16 km = 8.92 path-width (1-sig) RUWE and duplicate source : 1.11 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#38 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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