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Stellar Occultation by (1641) Tana on 2025-08-28 (22:20:36 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] : 585f9c60-ddb7-11f0-547e-1dc835ff384e [observed] Occultation Date + Time : 2025-08-28 at 22:20:36 UT +/- 0.02 min [1] Object Designation : (1641) Tana Star Designation : GDR3 0114521596391970432 Star Coordinates (ICRF) : RA = 02 49 58.1476, DE = +26 06 37.323 [2] Star Magnitudes : G = 14.68 mag, RP = 13.97 mag, BP = 15.05 mag Object Magnitude : V = 15.68 mag Estimated Magnitude Drop : 1.4 mag Estimated Max. Duration : 2.9 sec Speed of the shadow : 8.9 km/s Object Mean Diameter : 26.1 km (src: astorb) => apparent = 15 mas Apparent Motion : 0.3117 arcs/min @ PA = 37 deg Horizontal Parallax : 3.7200 arcs Dynamical Class : MBA Elongation to Moon & Sun : 171° (sunlit = 29%), Sun = 108° Cross-track uncertainty : 3.2 mas = 5 km = 0.21 path-width (1-sig) RUWE and duplicate source : 11.6 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#77 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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