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Stellar Occultation by (40977) 1999 TD279 on 2025-11-09 (03:54:55 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] : afc6fce0-ddb8-11f0-547e-0e90d6f76488 [observed] Occultation Date + Time : 2025-11-09 at 03:54:55 UT +/- 0.01 min [1] Object Designation : (40977) 1999 TD279 Star Designation : GDR3 0103672715160289536 Star Coordinates (ICRF) : RA = 02 01 36.0610, DE = +22 37 39.708 [2] Star Magnitudes : G = 8.34 mag, RP = 7.94 mag, BP = 8.59 mag Object Magnitude : V = 18.36 mag Estimated Magnitude Drop : 10.0 mag Estimated Max. Duration : 0.4 sec Speed of the shadow : 10.5 km/s Object Mean Diameter : 3.8 km (src: astorb) => apparent = 3 mas Apparent Motion : 0.5267 arcs/min @ PA = 261 deg Horizontal Parallax : 5.3480 arcs Dynamical Class : MBA Elongation to Moon & Sun : 61° (sunlit = 82%), Sun = 166° Cross-track uncertainty : 3.7 mas = 4 km = 1.16 path-width (1-sig) RUWE and duplicate source : 0.94 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#39 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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