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Stellar Occultation by (18401) 1992 WE4 on 2024-10-09 (03:07:59 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] : 823732c0-ddb5-11f0-547e-4975ebbf1200 [observed] Occultation Date + Time : 2024-10-09 at 03:07:59 UT +/- 0.0 min [1] Object Designation : (18401) 1992 WE4 Star Designation : GDR3 5175865127064946048 Star Coordinates (ICRF) : RA = 02 18 55.0778, DE = -09 59 39.984 [2] Star Magnitudes : G = 13.4 mag, RP = 12.71 mag, BP = 13.93 mag Object Magnitude : V = 16.76 mag Estimated Magnitude Drop : 3.4 mag Estimated Max. Duration : 0.6 sec Speed of the shadow : 8.0 km/s Object Mean Diameter : 4.9 km (src: astorb) => apparent = 6 mas Apparent Motion : 0.5917 arcs/min @ PA = 272 deg Horizontal Parallax : 7.8910 arcs Dynamical Class : MBA Elongation to Moon & Sun : 117° (sunlit = 33%), Sun = 154° Cross-track uncertainty : 1.7 mas = 1 km = 0.28 path-width (1-sig) RUWE and duplicate source : 0.97 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#59 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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