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Stellar Occultation by (191491) 2003 TF21 on 2024-07-13 (22:49:54 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] : fa7a0d80-ddb4-11f0-547e-a3857fd794cb [observed] Occultation Date + Time : 2024-07-13 at 22:49:54 UT +/- 0.12 min [1] Object Designation : (191491) 2003 TF21 Star Designation : GDR3 4145039711514559872 Star Coordinates (ICRF) : RA = 18 01 53.6712, DE = -16 27 14.437 [2] Star Magnitudes : G = 12.43 mag, RP = 10.85 mag, BP = 16.51 mag Object Magnitude : V = 19.15 mag Estimated Magnitude Drop : 6.7 mag Estimated Max. Duration : 0.4 sec Speed of the shadow : 8.6 km/s Object Mean Diameter : 3.0 km (src: astorb) => apparent = 2 mas Apparent Motion : 0.4200 arcs/min @ PA = 252 deg Horizontal Parallax : 5.1800 arcs Dynamical Class : MBA Elongation to Moon & Sun : 69° (sunlit = 50%), Sun = 157° Cross-track uncertainty : 25.7 mas = 31 km = 10.55 path-width (1-sig) RUWE and duplicate source : 0.99 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#30 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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