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Stellar Occultation by (369438) 2010 AO1 on 2025-09-18 (18:27:03 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] : 709fa630-ddb7-11f0-547e-a69bed988c44 [observed] Occultation Date + Time : 2025-09-18 at 18:27:03 UT +/- 0.09 min [1] Object Designation : (369438) 2010 AO1 Star Designation : GDR3 0316583418073538304 Star Coordinates (ICRF) : RA = 01 29 02.7572, DE = +32 59 58.051 [2] Star Magnitudes : G = 11.5 mag, RP = 11.02 mag, BP = 11.81 mag Object Magnitude : V = 20.24 mag Estimated Magnitude Drop : 8.7 mag Estimated Max. Duration : 0.3 sec Speed of the shadow : 8.9 km/s Object Mean Diameter : 2.8 km (src: astorb) => apparent = 2 mas Apparent Motion : 0.3450 arcs/min @ PA = 294 deg Horizontal Parallax : 4.1050 arcs Dynamical Class : MBA Elongation to Moon & Sun : 105° (sunlit = 10%), Sun = 138° Cross-track uncertainty : 22.3 mas = 34 km = 12.37 path-width (1-sig) RUWE and duplicate source : 1.05 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#29 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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