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Stellar Occultation by (4293) Masumi on 2025-11-25 (23:48:58 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] : cd3b4560-ddb8-11f0-547e-77d539ff22e3 [observed] Occultation Date + Time : 2025-11-25 at 23:48:58 UT +/- 0.01 min [1] Object Designation : (4293) Masumi Star Designation : GDR3 3443577754280092032 Star Coordinates (ICRF) : RA = 05 55 29.7878, DE = +29 01 25.803 [2] Star Magnitudes : G = 14.16 mag, RP = 13.35 mag, BP = 14.86 mag Object Magnitude : V = 15.27 mag Estimated Magnitude Drop : 1.4 mag Estimated Max. Duration : 1.6 sec Speed of the shadow : 7.0 km/s Object Mean Diameter : 11.4 km (src: astorb) => apparent = 13 mas Apparent Motion : 0.4683 arcs/min @ PA = 307 deg Horizontal Parallax : 7.0810 arcs Dynamical Class : MBA Elongation to Moon & Sun : 142° (sunlit = 27%), Sun = 154° Cross-track uncertainty : 0.7 mas = 0 km = 0.06 path-width (1-sig) RUWE and duplicate source : 1.09 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#63 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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