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Stellar Occultation by (55027) 2001 QL42 on 2024-08-25 (02:30:58 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] : 46960020-ddb5-11f0-547e-fbce4fceb9f1 [observed] Occultation Date + Time : 2024-08-25 at 02:30:58 UT +/- 0.0 min [1] Object Designation : (55027) 2001 QL42 Star Designation : GDR3 0052102699242838400 Star Coordinates (ICRF) : RA = 04 04 55.2565, DE = +20 34 21.333 [2] Star Magnitudes : G = 12.4 mag, RP = 11.6 mag, BP = 13.09 mag Object Magnitude : V = 19.43 mag Estimated Magnitude Drop : 7.0 mag Estimated Max. Duration : 0.3 sec Speed of the shadow : 18.7 km/s Object Mean Diameter : 5.0 km (src: astorb) => apparent = 3 mas Apparent Motion : 0.6117 arcs/min @ PA = 78 deg Horizontal Parallax : 3.4830 arcs Dynamical Class : MBA Elongation to Moon & Sun : 18° (sunlit = 64%), Sun = 89° Cross-track uncertainty : 0.3 mas = 0 km = 0.11 path-width (1-sig) RUWE and duplicate source : 1.15 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#54 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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