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Stellar Occultation by (110759) 2001 UR18 on 2023-09-16 (01:34:15 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] : 0b566af0-ddb4-11f0-547e-6b65ed4f694c [observed] Occultation Date + Time : 2023-09-16 at 01:34:15 UT +/- 0.02 min [1] Object Designation : (110759) 2001 UR18 Star Designation : GDR3 0057515320107755264 Star Coordinates (ICRF) : RA = 03 25 40.0473, DE = +18 53 41.035 [2] Star Magnitudes : G = 11.08 mag, RP = 10.32 mag, BP = 11.71 mag Object Magnitude : V = 19.18 mag Estimated Magnitude Drop : 8.1 mag Estimated Max. Duration : 0.4 sec Speed of the shadow : 6.8 km/s Object Mean Diameter : 2.8 km (src: astorb) => apparent = 3 mas Apparent Motion : 0.3700 arcs/min @ PA = 32 deg Horizontal Parallax : 5.7490 arcs Dynamical Class : MBA Elongation to Moon & Sun : 130° (sunlit = 1%), Sun = 119° Cross-track uncertainty : 2.0 mas = 2 km = 0.79 path-width (1-sig) RUWE and duplicate source : 0.88 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#38 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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