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Stellar Occultation by (9121) Stefanovalentini on 2025-10-03 (23:31:14 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] : 875a5310-ddb8-11f0-547e-41dbb7f9800b [observed] Occultation Date + Time : 2025-10-03 at 23:31:14 UT +/- 0.01 min [1] Object Designation : (9121) Stefanovalentini Star Designation : GDR3 0092749376376386432 Star Coordinates (ICRF) : RA = 02 03 53.0021, DE = +18 21 05.342 [2] Star Magnitudes : G = 13.87 mag, RP = 13.25 mag, BP = 14.33 mag Object Magnitude : V = 17.11 mag Estimated Magnitude Drop : 3.3 mag Estimated Max. Duration : 1.5 sec Speed of the shadow : 12.3 km/s Object Mean Diameter : 18.3 km (src: astorb) => apparent = 9 mas Apparent Motion : 0.3483 arcs/min @ PA = 257 deg Horizontal Parallax : 3.0120 arcs Dynamical Class : MBA Elongation to Moon & Sun : 67° (sunlit = 87%), Sun = 155° Cross-track uncertainty : 1.0 mas = 2 km = 0.12 path-width (1-sig) RUWE and duplicate source : 1.11 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#67 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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