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Stellar Occultation by (39092) 2000 VB57 on 2023-10-09 (23:32:09 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] : 244615b0-ddb4-11f0-547e-3834eef97833 [observed] Occultation Date + Time : 2023-10-09 at 23:32:09 UT +/- 0.01 min [1] Object Designation : (39092) 2000 VB57 Star Designation : GDR3 0058195883444775680 Star Coordinates (ICRF) : RA = 03 35 14.8291, DE = +20 30 49.443 [2] Star Magnitudes : G = 13.57 mag, RP = 12.83 mag, BP = 14.13 mag Object Magnitude : V = 18.73 mag Estimated Magnitude Drop : 5.2 mag Estimated Max. Duration : 0.8 sec Speed of the shadow : 4.2 km/s Object Mean Diameter : 3.5 km (src: astorb) => apparent = 3 mas Apparent Motion : 0.2200 arcs/min @ PA = 287 deg Horizontal Parallax : 5.6090 arcs Dynamical Class : MBA Elongation to Moon & Sun : 87° (sunlit = 20%), Sun = 140° Cross-track uncertainty : 1.3 mas = 1 km = 0.42 path-width (1-sig) RUWE and duplicate source : 2.6 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#41 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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