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Stellar Occultation by (5234) Sechenov on 2025-10-20 (17:45:06 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] : 983bc420-ddb8-11f0-547e-538cf7fd6f24 [observed] Occultation Date + Time : 2025-10-20 at 17:45:06 UT +/- 0.0 min [1] Object Designation : (5234) Sechenov Star Designation : GDR3 4512768905868494592 Star Coordinates (ICRF) : RA = 19 09 49.4427, DE = +15 25 08.521 [2] Star Magnitudes : G = 13.09 mag, RP = 12.08 mag, BP = 14.16 mag Object Magnitude : V = 17.41 mag Estimated Magnitude Drop : 4.3 mag Estimated Max. Duration : 0.5 sec Speed of the shadow : 23.7 km/s Object Mean Diameter : 12.2 km (src: astorb) => apparent = 7 mas Apparent Motion : 0.7800 arcs/min @ PA = 118 deg Horizontal Parallax : 3.4940 arcs Dynamical Class : MBA Elongation to Moon & Sun : 94° (sunlit = 1%), Sun = 85° Cross-track uncertainty : 0.7 mas = 1 km = 0.10 path-width (1-sig) RUWE and duplicate source : 0.96 mas, dup.src = 1 (0:false, 1:true) Ephemeris Reference : JPL#58 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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