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Stellar Occultation by (1169) Alwine on 2025-10-18 (18:31:11 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] : 9bf76c90-ddb8-11f0-547e-ca935fe750be [observed] Occultation Date + Time : 2025-10-18 at 18:31:11 UT +/- 0.0 min [1] Object Designation : (1169) Alwine Star Designation : GDR3 6871665653167582336 Star Coordinates (ICRF) : RA = 19 44 45.6744, DE = -17 10 49.653 [2] Star Magnitudes : G = 11.71 mag, RP = 10.75 mag, BP = 12.67 mag Object Magnitude : V = 17.55 mag Estimated Magnitude Drop : 5.9 mag Estimated Max. Duration : 0.6 sec Speed of the shadow : 16.4 km/s Object Mean Diameter : 9.4 km (src: astorb) => apparent = 6 mas Apparent Motion : 0.6183 arcs/min @ PA = 83 deg Horizontal Parallax : 4.0070 arcs Dynamical Class : MBA Elongation to Moon & Sun : 120° (sunlit = 7%), Sun = 89° Cross-track uncertainty : 0.3 mas = 0 km = 0.05 path-width (1-sig) RUWE and duplicate source : 0.93 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#62 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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