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Stellar Occultation by (52621) 1997 VW4 on 2023-04-04 (20:56:00 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] : 83b02910-ddb3-11f0-547e-ff96f77fcee7 [observed] Occultation Date + Time : 2023-04-04 at 20:56:00 UT +/- 0.0 min [1] Object Designation : (52621) 1997 VW4 Star Designation : GDR3 0160605118011058432 Star Coordinates (ICRF) : RA = 04 59 53.4367, DE = +32 26 50.509 [2] Star Magnitudes : G = 10.93 mag, RP = 9.73 mag, BP = 12.52 mag Object Magnitude : V = 18.88 mag Estimated Magnitude Drop : 8.0 mag Estimated Max. Duration : 0.2 sec Speed of the shadow : 29.8 km/s Object Mean Diameter : 6.4 km (src: astorb) => apparent = 3 mas Apparent Motion : 0.8883 arcs/min @ PA = 85 deg Horizontal Parallax : 3.1710 arcs Dynamical Class : MBA Elongation to Moon & Sun : 102° (sunlit = 98%), Sun = 63° Cross-track uncertainty : 0.3 mas = 0 km = 0.09 path-width (1-sig) RUWE and duplicate source : 0.93 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#60 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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