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Stellar Occultation by (3026) Sarastro on 2023-05-21 (21:40:33 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] : 9a8901c0-ddb3-11f0-547e-6f867be6bc79 [observed] Occultation Date + Time : 2023-05-21 at 21:40:33 UT +/- 0.0 min [1] Object Designation : (3026) Sarastro Star Designation : GDR3 4139735396833563648 Star Coordinates (ICRF) : RA = 17 06 06.0733, DE = -14 27 41.001 [2] Star Magnitudes : G = 12.63 mag, RP = 11.69 mag, BP = 13.54 mag Object Magnitude : V = 16.39 mag Estimated Magnitude Drop : 3.8 mag Estimated Max. Duration : 1.8 sec Speed of the shadow : 11.6 km/s Object Mean Diameter : 21.3 km (src: astorb) => apparent = 14 mas Apparent Motion : 0.4717 arcs/min @ PA = 292 deg Horizontal Parallax : 4.3150 arcs Dynamical Class : MBA Elongation to Moon & Sun : 164° (sunlit = 5%), Sun = 162° Cross-track uncertainty : 0.3 mas = 0 km = 0.02 path-width (1-sig) RUWE and duplicate source : 0.92 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#76 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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