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Stellar Occultation by (3784) Chopin on 2023-05-24 (23:17:33 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] : a7c0cbc0-ddb3-11f0-547e-b27077f702fd [observed] Occultation Date + Time : 2023-05-24 at 23:17:33 UT +/- 0.0 min [1] Object Designation : (3784) Chopin Star Designation : GDR3 4344198036511310080 Star Coordinates (ICRF) : RA = 16 19 16.4363, DE = -10 16 46.139 [2] Star Magnitudes : G = 11.47 mag, RP = 10.56 mag, BP = 12.34 mag Object Magnitude : V = 15.27 mag Estimated Magnitude Drop : 3.8 mag Estimated Max. Duration : 2.5 sec Speed of the shadow : 11.3 km/s Object Mean Diameter : 28.5 km (src: astorb) => apparent = 23 mas Apparent Motion : 0.5400 arcs/min @ PA = 262 deg Horizontal Parallax : 5.0960 arcs Dynamical Class : MBA Elongation to Moon & Sun : 119° (sunlit = 26%), Sun = 169° Cross-track uncertainty : 0.7 mas = 0 km = 0.03 path-width (1-sig) RUWE and duplicate source : 1.36 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#75 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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