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Stellar Occultation by (131) Vala on 2023-11-13 (02:50:22 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] : 377df9e0-ddb4-11f0-547e-a4d1e6f7cb66 [observed] Occultation Date + Time : 2023-11-13 at 02:50:22 UT +/- 0.0 min [1] Object Designation : (131) Vala Star Designation : GDR3 0621097595792108416 Star Coordinates (ICRF) : RA = 09 46 55.9218, DE = +17 55 00.290 [2] Star Magnitudes : G = 12.86 mag, RP = 12.35 mag, BP = 13.2 mag Object Magnitude : V = 14.89 mag Estimated Magnitude Drop : 2.2 mag Estimated Max. Duration : 2.1 sec Speed of the shadow : 18.9 km/s Object Mean Diameter : 40.4 km (src: astorb) => apparent = 24 mas Apparent Motion : 0.6767 arcs/min @ PA = 101 deg Horizontal Parallax : 3.8010 arcs Dynamical Class : MBA Elongation to Moon & Sun : 84° (sunlit = 0%), Sun = 88° Cross-track uncertainty : 0.4 mas = 0 km = 0.02 path-width (1-sig) RUWE and duplicate source : 1.61 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#109 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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