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Stellar Occultation by (187018) 2004 YC25 on 2024-12-25 (18:55:23 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] : cc9bff80-ddb5-11f0-547e-bb8eff67bfa0 [observed] Occultation Date + Time : 2024-12-25 at 18:55:23 UT +/- 0.15 min [1] Object Designation : (187018) 2004 YC25 Star Designation : GDR3 2524926748362073600 Star Coordinates (ICRF) : RA = 00 59 46.3778, DE = -05 17 36.345 [2] Star Magnitudes : G = 13.1 mag, RP = 12.5 mag, BP = 13.53 mag Object Magnitude : V = 21.27 mag Estimated Magnitude Drop : 8.2 mag Estimated Max. Duration : 0.6 sec Speed of the shadow : 10.4 km/s Object Mean Diameter : 6.4 km (src: astorb) => apparent = 2 mas Apparent Motion : 0.1800 arcs/min @ PA = 41 deg Horizontal Parallax : 1.8260 arcs Dynamical Class : JTRO Elongation to Moon & Sun : 153° (sunlit = 24%), Sun = 97° Cross-track uncertainty : 14.3 mas = 49 km = 7.80 path-width (1-sig) RUWE and duplicate source : 1.05 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#30 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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