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Stellar Occultation by (129921) 1999 TF123 on 2024-07-30 (21:32:37 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] : 315d9100-ddb5-11f0-547e-daf9fdffb4a4 [observed] Occultation Date + Time : 2024-07-30 at 21:32:37 UT +/- 0.09 min [1] Object Designation : (129921) 1999 TF123 Star Designation : GDR3 4077165557388153984 Star Coordinates (ICRF) : RA = 18 25 20.0719, DE = -25 12 44.086 [2] Star Magnitudes : G = 13.88 mag, RP = 12.93 mag, BP = 14.8 mag Object Magnitude : V = 20.08 mag Estimated Magnitude Drop : 6.2 mag Estimated Max. Duration : 0.3 sec Speed of the shadow : 7.2 km/s Object Mean Diameter : 2.0 km (src: astorb) => apparent = 2 mas Apparent Motion : 0.3600 arcs/min @ PA = 264 deg Horizontal Parallax : 5.3070 arcs Dynamical Class : MBA Elongation to Moon & Sun : 158° (sunlit = 21%), Sun = 147° Cross-track uncertainty : 23.7 mas = 28 km = 14.24 path-width (1-sig) RUWE and duplicate source : 0.85 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#29 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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