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Stellar Occultation by (129581) 1997 SB6 on 2025-12-11 (21:58:36 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] : da34f4f0-ddb8-11f0-547e-8bd4ffb3de3f [observed] Occultation Date + Time : 2025-12-11 at 21:58:36 UT +/- 0.02 min [1] Object Designation : (129581) 1997 SB6 Star Designation : GDR3 0127706493155824256 Star Coordinates (ICRF) : RA = 02 32 12.9450, DE = +27 54 58.780 [2] Star Magnitudes : G = 11.83 mag, RP = 11.04 mag, BP = 12.51 mag Object Magnitude : V = 19.69 mag Estimated Magnitude Drop : 7.9 mag Estimated Max. Duration : 0.5 sec Speed of the shadow : 7.1 km/s Object Mean Diameter : 3.4 km (src: astorb) => apparent = 2 mas Apparent Motion : 0.2817 arcs/min @ PA = 239 deg Horizontal Parallax : 4.2350 arcs Dynamical Class : MBA Elongation to Moon & Sun : 125° (sunlit = 50%), Sun = 143° Cross-track uncertainty : 3.0 mas = 4 km = 1.33 path-width (1-sig) RUWE and duplicate source : 1.33 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#38 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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