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Stellar Occultation by (54581) 2000 QW170 on 2025-11-10 (18:00:02 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] : b256cf80-ddb8-11f0-547e-977a2fcfdc3f [observed] Occultation Date + Time : 2025-11-10 at 18:00:02 UT +/- 0.06 min [1] Object Designation : (54581) 2000 QW170 Star Designation : GDR3 0064414583772050560 Star Coordinates (ICRF) : RA = 03 41 03.3275, DE = +22 06 53.548 [2] Star Magnitudes : G = 13.16 mag, RP = 12.46 mag, BP = 13.7 mag Object Magnitude : V = 18.97 mag Estimated Magnitude Drop : 5.8 mag Estimated Max. Duration : 0.7 sec Speed of the shadow : 15.9 km/s Object Mean Diameter : 11.6 km (src: astorb) => apparent = 4 mas Apparent Motion : 0.3400 arcs/min @ PA = 253 deg Horizontal Parallax : 2.2700 arcs Dynamical Class : JTRO Elongation to Moon & Sun : 62° (sunlit = 66%), Sun = 170° Cross-track uncertainty : 2.7 mas = 7 km = 0.65 path-width (1-sig) RUWE and duplicate source : 1.09 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#43 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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