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Stellar Occultation by (66011) 1998 QR17 on 2025-08-13 (23:07:09 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] : 4437d9f0-ddb7-11f0-547e-d712429dadf1 [observed] Occultation Date + Time : 2025-08-13 at 23:07:09 UT +/- 0.01 min [1] Object Designation : (66011) 1998 QR17 Star Designation : GDR3 4076783163522178304 Star Coordinates (ICRF) : RA = 18 40 38.0749, DE = -24 08 15.055 [2] Star Magnitudes : G = 12.41 mag, RP = 11.89 mag, BP = 12.75 mag Object Magnitude : V = 17.92 mag Estimated Magnitude Drop : 5.5 mag Estimated Max. Duration : 1.5 sec Speed of the shadow : 4.0 km/s Object Mean Diameter : 6.2 km (src: astorb) => apparent = 5 mas Apparent Motion : 0.1850 arcs/min @ PA = 289 deg Horizontal Parallax : 4.8850 arcs Dynamical Class : MBA Elongation to Moon & Sun : 102° (sunlit = 75%), Sun = 138° Cross-track uncertainty : 0.3 mas = 0 km = 0.06 path-width (1-sig) RUWE and duplicate source : 0.82 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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