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Stellar Occultation by (211730) 2003 YR101 on 2025-12-07 (23:48:15 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] : cfd10b70-ddb8-11f0-547e-18ced76f37b9 [observed] Occultation Date + Time : 2025-12-07 at 23:48:15 UT +/- 0.02 min [1] Object Designation : (211730) 2003 YR101 Star Designation : GDR3 3120905348187093504 Star Coordinates (ICRF) : RA = 06 36 00.6147, DE = +01 52 41.541 [2] Star Magnitudes : G = 12.0 mag, RP = 11.51 mag, BP = 12.32 mag Object Magnitude : V = 18.72 mag Estimated Magnitude Drop : 6.7 mag Estimated Max. Duration : 0.3 sec Speed of the shadow : 11.5 km/s Object Mean Diameter : 3.8 km (src: astorb) => apparent = 3 mas Apparent Motion : 0.5583 arcs/min @ PA = 301 deg Horizontal Parallax : 5.1900 arcs Dynamical Class : MBA Elongation to Moon & Sun : 31° (sunlit = 87%), Sun = 149° Cross-track uncertainty : 3.7 mas = 4 km = 1.20 path-width (1-sig) RUWE and duplicate source : 3.13 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#37 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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