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Stellar Occultation by (166397) 2002 NG21 on 2024-10-28 (20:56:45 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] : 94c0ae80-ddb5-11f0-547e-551779f7c650 [observed] Occultation Date + Time : 2024-10-28 at 20:56:45 UT +/- 0.26 min [1] Object Designation : (166397) 2002 NG21 Star Designation : GDR3 2398067708089622144 Star Coordinates (ICRF) : RA = 22 53 34.3157, DE = -20 12 35.938 [2] Star Magnitudes : G = 11.87 mag, RP = 11.38 mag, BP = 12.2 mag Object Magnitude : V = 20.54 mag Estimated Magnitude Drop : 8.7 mag Estimated Max. Duration : 0.7 sec Speed of the shadow : 3.2 km/s Object Mean Diameter : 2.1 km (src: astorb) => apparent = 1 mas Apparent Motion : 0.1350 arcs/min @ PA = 40 deg Horizontal Parallax : 4.5130 arcs Dynamical Class : MBA Elongation to Moon & Sun : 158° (sunlit = 12%), Sun = 120° Cross-track uncertainty : 17.0 mas = 24 km = 11.44 path-width (1-sig) RUWE and duplicate source : 0.98 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#33 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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