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Stellar Occultation by (194839) 2002 AB4 on 2025-09-11 (21:05:04 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] : 6c2345d0-ddb7-11f0-547e-4bf1ff7dccce [observed] Occultation Date + Time : 2025-09-11 at 21:05:04 UT +/- 0.07 min [1] Object Designation : (194839) 2002 AB4 Star Designation : GDR3 0345627361320076928 Star Coordinates (ICRF) : RA = 02 09 14.0539, DE = +42 56 25.010 [2] Star Magnitudes : G = 12.49 mag, RP = 12.03 mag, BP = 12.78 mag Object Magnitude : V = 19.45 mag Estimated Magnitude Drop : 7.0 mag Estimated Max. Duration : 0.6 sec Speed of the shadow : 5.7 km/s Object Mean Diameter : 3.6 km (src: astorb) => apparent = 3 mas Apparent Motion : 0.2383 arcs/min @ PA = 343 deg Horizontal Parallax : 4.4320 arcs Dynamical Class : MBA Elongation to Moon & Sun : 24° (sunlit = 78%), Sun = 119° Cross-track uncertainty : 0.7 mas = 1 km = 0.28 path-width (1-sig) RUWE and duplicate source : 1.0 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#45 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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