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Stellar Occultation by (51627) 2001 HK38 on 2025-08-25 (23:34:19 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] : 518268a0-ddb7-11f0-547e-24e0bffb5438 [observed] Occultation Date + Time : 2025-08-25 at 23:34:19 UT +/- 0.1 min [1] Object Designation : (51627) 2001 HK38 Star Designation : GDR3 2777676713214601856 Star Coordinates (ICRF) : RA = 00 50 11.3476, DE = +13 49 13.530 [2] Star Magnitudes : G = 14.13 mag, RP = 13.57 mag, BP = 14.53 mag Object Magnitude : V = 18.07 mag Estimated Magnitude Drop : 4.0 mag Estimated Max. Duration : 2.0 sec Speed of the shadow : 2.2 km/s Object Mean Diameter : 4.5 km (src: astorb) => apparent = 4 mas Apparent Motion : 0.1217 arcs/min @ PA = 234 deg Horizontal Parallax : 5.8170 arcs Dynamical Class : MBA Elongation to Moon & Sun : 166° (sunlit = 8%), Sun = 136° Cross-track uncertainty : 2.3 mas = 2 km = 0.56 path-width (1-sig) RUWE and duplicate source : 1.1 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#52 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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