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Stellar Occultation by (179013) 2001 RL61 on 2025-12-17 (22:36:31 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] : df994450-ddb8-11f0-547e-3300ff756c9b [observed] Occultation Date + Time : 2025-12-17 at 22:36:31 UT +/- 0.16 min [1] Object Designation : (179013) 2001 RL61 Star Designation : GDR3 0601697572114180480 Star Coordinates (ICRF) : RA = 08 39 41.2266, DE = +11 19 51.521 [2] Star Magnitudes : G = 14.31 mag, RP = 13.79 mag, BP = 14.67 mag Object Magnitude : V = 20.19 mag Estimated Magnitude Drop : 5.9 mag Estimated Max. Duration : 0.4 sec Speed of the shadow : 4.9 km/s Object Mean Diameter : 2.1 km (src: astorb) => apparent = 2 mas Apparent Motion : 0.2267 arcs/min @ PA = 297 deg Horizontal Parallax : 4.9610 arcs Dynamical Class : MBA Elongation to Moon & Sun : 113° (sunlit = 4%), Sun = 136° Cross-track uncertainty : 20.7 mas = 26 km = 12.67 path-width (1-sig) RUWE and duplicate source : 1.03 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#29 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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