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Stellar Occultation by (85424) 1997 AA3 on 2023-08-13 (00:33:24 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] : ea190c80-ddb3-11f0-547e-f25abfbec72a [observed] Occultation Date + Time : 2023-08-13 at 00:33:24 UT +/- 0.01 min [1] Object Designation : (85424) 1997 AA3 Star Designation : GDR3 0298172611262458240 Star Coordinates (ICRF) : RA = 01 53 37.5399, DE = +27 15 31.059 [2] Star Magnitudes : G = 10.57 mag, RP = 10.19 mag, BP = 10.8 mag Object Magnitude : V = 18.12 mag Estimated Magnitude Drop : 7.5 mag Estimated Max. Duration : 0.4 sec Speed of the shadow : 15.6 km/s Object Mean Diameter : 6.2 km (src: astorb) => apparent = 4 mas Apparent Motion : 0.6767 arcs/min @ PA = 35 deg Horizontal Parallax : 4.6200 arcs Dynamical Class : MBA Elongation to Moon & Sun : 66° (sunlit = 10%), Sun = 103° Cross-track uncertainty : 2.0 mas = 2 km = 0.45 path-width (1-sig) RUWE and duplicate source : 1.25 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#43 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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