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Stellar Occultation by (296690) 2009 SM245 on 2023-12-22 (02:41:19 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] : 4a356370-ddb4-11f0-547e-310bee5f401e [observed] Occultation Date + Time : 2023-12-22 at 02:41:19 UT +/- 0.07 min [1] Object Designation : (296690) 2009 SM245 Star Designation : GDR3 3443672754657571840 Star Coordinates (ICRF) : RA = 05 54 47.8623, DE = +29 25 44.881 [2] Star Magnitudes : G = 11.86 mag, RP = 11.34 mag, BP = 12.21 mag Object Magnitude : V = 20.02 mag Estimated Magnitude Drop : 8.2 mag Estimated Max. Duration : 0.4 sec Speed of the shadow : 16.0 km/s Object Mean Diameter : 6.4 km (src: astorb) => apparent = 2 mas Apparent Motion : 0.3567 arcs/min @ PA = 266 deg Horizontal Parallax : 2.3760 arcs Dynamical Class : JTRO Elongation to Moon & Sun : 59° (sunlit = 75%), Sun = 174° Cross-track uncertainty : 23.3 mas = 62 km = 9.77 path-width (1-sig) RUWE and duplicate source : 2.87 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#26 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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