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Stellar Occultation by (325679) 2009 TH27 on 2023-12-18 (04:15:43 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] : 492d9060-ddb4-11f0-547e-eeb2fbf56b06 [observed] Occultation Date + Time : 2023-12-18 at 04:15:43 UT +/- 0.23 min [1] Object Designation : (325679) 2009 TH27 Star Designation : GDR3 1009634081284150144 Star Coordinates (ICRF) : RA = 09 08 22.5802, DE = +45 17 48.572 [2] Star Magnitudes : G = 13.47 mag, RP = 13.03 mag, BP = 13.75 mag Object Magnitude : V = 20.55 mag Estimated Magnitude Drop : 7.1 mag Estimated Max. Duration : 0.5 sec Speed of the shadow : 14.6 km/s Object Mean Diameter : 7.3 km (src: astorb) => apparent = 2 mas Apparent Motion : 0.2833 arcs/min @ PA = 335 deg Horizontal Parallax : 2.0660 arcs Dynamical Class : JTRO Elongation to Moon & Sun : 143° (sunlit = 32%), Sun = 133° Cross-track uncertainty : 27.0 mas = 83 km = 11.42 path-width (1-sig) RUWE and duplicate source : 0.97 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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