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Stellar Occultation by (115658) 2003 UT138 on 2025-08-29 (21:46:51 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] : 558ec920-ddb7-11f0-547e-f97ad7bb2af2 [observed] Occultation Date + Time : 2025-08-29 at 21:46:51 UT +/- 0.11 min [1] Object Designation : (115658) 2003 UT138 Star Designation : GDR3 6859422762989500672 Star Coordinates (ICRF) : RA = 20 25 51.7808, DE = -20 29 44.112 [2] Star Magnitudes : G = 11.29 mag, RP = 10.79 mag, BP = 11.62 mag Object Magnitude : V = 19.64 mag Estimated Magnitude Drop : 8.4 mag Estimated Max. Duration : 0.5 sec Speed of the shadow : 6.2 km/s Object Mean Diameter : 3.0 km (src: astorb) => apparent = 2 mas Apparent Motion : 0.2633 arcs/min @ PA = 254 deg Horizontal Parallax : 4.5610 arcs Dynamical Class : MBA Elongation to Moon & Sun : 72° (sunlit = 37%), Sun = 147° Cross-track uncertainty : 20.0 mas = 27 km = 9.32 path-width (1-sig) RUWE and duplicate source : 3.75 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#35 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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