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Stellar Occultation by (315869) 2008 HH70 on 2025-09-12 (18:20:31 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] : 6b113990-ddb7-11f0-547e-1d5cfa6fb24c [observed] Occultation Date + Time : 2025-09-12 at 18:20:31 UT +/- 0.1 min [1] Object Designation : (315869) 2008 HH70 Star Designation : GDR3 1753534786460790272 Star Coordinates (ICRF) : RA = 20 20 04.3982, DE = +10 15 58.362 [2] Star Magnitudes : G = 11.98 mag, RP = 11.16 mag, BP = 12.7 mag Object Magnitude : V = 20.52 mag Estimated Magnitude Drop : 8.5 mag Estimated Max. Duration : 0.2 sec Speed of the shadow : 12.4 km/s Object Mean Diameter : 3.0 km (src: astorb) => apparent = 2 mas Apparent Motion : 0.4233 arcs/min @ PA = 197 deg Horizontal Parallax : 3.6190 arcs Dynamical Class : MBA Elongation to Moon & Sun : 103° (sunlit = 69%), Sun = 132° Cross-track uncertainty : 2.3 mas = 4 km = 1.35 path-width (1-sig) RUWE and duplicate source : 0.91 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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