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Stellar Occultation by (2807) Karl Marx on 2025-08-29 (01:42:34 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] : 55815ba0-ddb7-11f0-547e-0e5cfd7d7159 [observed] Occultation Date + Time : 2025-08-29 at 01:42:34 UT +/- 0.02 min [1] Object Designation : (2807) Karl Marx Star Designation : GDR3 2565002370942046720 Star Coordinates (ICRF) : RA = 01 34 09.2955, DE = +05 59 45.553 [2] Star Magnitudes : G = 12.7 mag, RP = 12.26 mag, BP = 12.99 mag Object Magnitude : V = 17.84 mag Estimated Magnitude Drop : 5.1 mag Estimated Max. Duration : 2.7 sec Speed of the shadow : 3.2 km/s Object Mean Diameter : 8.4 km (src: astorb) => apparent = 5 mas Apparent Motion : 0.1233 arcs/min @ PA = 268 deg Horizontal Parallax : 4.1250 arcs Dynamical Class : MBA Elongation to Moon & Sun : 160° (sunlit = 30%), Sun = 132° Cross-track uncertainty : 1.0 mas = 1 km = 0.18 path-width (1-sig) RUWE and duplicate source : 0.94 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#62 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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