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Stellar Occultation by (4325) Guest on 2025-12-14 (20:28:03 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] : db02f350-ddb8-11f0-547e-f9bee03d5bee [observed] Occultation Date + Time : 2025-12-14 at 20:28:03 UT +/- 0.07 min [1] Object Designation : (4325) Guest Star Designation : GDR3 2564302325632723712 Star Coordinates (ICRF) : RA = 01 20 19.4584, DE = +05 32 39.740 [2] Star Magnitudes : G = 13.91 mag, RP = 13.38 mag, BP = 14.27 mag Object Magnitude : V = 17.77 mag Estimated Magnitude Drop : 3.9 mag Estimated Max. Duration : 3.1 sec Speed of the shadow : 3.1 km/s Object Mean Diameter : 9.6 km (src: astorb) => apparent = 6 mas Apparent Motion : 0.1100 arcs/min @ PA = 11 deg Horizontal Parallax : 3.7950 arcs Dynamical Class : MBA Elongation to Moon & Sun : 172° (sunlit = 23%), Sun = 117° Cross-track uncertainty : 0.7 mas = 1 km = 0.12 path-width (1-sig) RUWE and duplicate source : 1.18 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#72 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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