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Stellar Occultation by (31624) 1999 GP20 on 2022-12-26 (22:12:27 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] : 3e7ded50-ddb3-11f0-547e-7856f7d7dc3c [observed] Occultation Date + Time : 2022-12-26 at 22:12:27 UT +/- 0.02 min [1] Object Designation : (31624) 1999 GP20 Star Designation : GDR3 0099088163989435648 Star Coordinates (ICRF) : RA = 02 15 49.6167, DE = +19 39 46.981 [2] Star Magnitudes : G = 10.16 mag, RP = 9.64 mag, BP = 10.51 mag Object Magnitude : V = 17.76 mag Estimated Magnitude Drop : 7.6 mag Estimated Max. Duration : 3.4 sec Speed of the shadow : 2.1 km/s Object Mean Diameter : 6.9 km (src: astorb) => apparent = 5 mas Apparent Motion : 0.0933 arcs/min @ PA = 340 deg Horizontal Parallax : 4.7780 arcs Dynamical Class : MBA Elongation to Moon & Sun : 75° (sunlit = 17%), Sun = 123° Cross-track uncertainty : 0.3 mas = 0 km = 0.06 path-width (1-sig) RUWE and duplicate source : 1.35 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#57 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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