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Stellar Occultation by (40621) 1999 RG169 on 2023-12-16 (19:27:31 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] : 49f59b50-ddb4-11f0-547e-35aab3ca8f21 [observed] Occultation Date + Time : 2023-12-16 at 19:27:31 UT +/- 0.01 min [1] Object Designation : (40621) 1999 RG169 Star Designation : GDR3 0218519212945479296 Star Coordinates (ICRF) : RA = 03 54 05.4817, DE = +33 31 57.796 [2] Star Magnitudes : G = 9.35 mag, RP = 8.88 mag, BP = 9.64 mag Object Magnitude : V = 17.98 mag Estimated Magnitude Drop : 8.6 mag Estimated Max. Duration : 0.5 sec Speed of the shadow : 8.4 km/s Object Mean Diameter : 4.2 km (src: astorb) => apparent = 4 mas Apparent Motion : 0.4667 arcs/min @ PA = 241 deg Horizontal Parallax : 5.9330 arcs Dynamical Class : MBA Elongation to Moon & Sun : 109° (sunlit = 18%), Sun = 155° Cross-track uncertainty : 0.8 mas = 0 km = 0.20 path-width (1-sig) RUWE and duplicate source : 3.59 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#48 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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