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Stellar Occultation by (426) Hippo on 2025-10-02 (02:45:41 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] : 7c5d0fc0-ddb8-11f0-547e-8b2cdd673aed [observed] Occultation Date + Time : 2025-10-02 at 02:45:41 UT +/- 0.0 min [1] Object Designation : (426) Hippo Star Designation : GDR3 2852509818199604224 Star Coordinates (ICRF) : RA = 23 50 17.1332, DE = +25 10 45.216 [2] Star Magnitudes : G = 13.15 mag, RP = 12.67 mag, BP = 13.47 mag Object Magnitude : V = 13.34 mag Estimated Magnitude Drop : 0.9 mag Estimated Max. Duration : 8.8 sec Speed of the shadow : 14.4 km/s Object Mean Diameter : 127.1 km (src: astorb) => apparent = 78 mas Apparent Motion : 0.5333 arcs/min @ PA = 255 deg Horizontal Parallax : 3.9330 arcs Dynamical Class : MBA Elongation to Moon & Sun : 69° (sunlit = 71%), Sun = 156° Cross-track uncertainty : 2.0 mas = 3 km = 0.03 path-width (1-sig) RUWE and duplicate source : 0.98 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#144 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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