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Stellar Occultation by (13399) 1999 RJ88 on 2025-08-22 (22:17:02 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] : 4f432700-ddb7-11f0-547e-559cfd9d549d [observed] Occultation Date + Time : 2025-08-22 at 22:17:02 UT +/- 0.01 min [1] Object Designation : (13399) 1999 RJ88 Star Designation : GDR3 2670337509028220672 Star Coordinates (ICRF) : RA = 21 58 13.4614, DE = -03 18 49.901 [2] Star Magnitudes : G = 9.79 mag, RP = 9.31 mag, BP = 10.1 mag Object Magnitude : V = 16.41 mag Estimated Magnitude Drop : 6.6 mag Estimated Max. Duration : 0.9 sec Speed of the shadow : 11.1 km/s Object Mean Diameter : 9.8 km (src: astorb) => apparent = 8 mas Apparent Motion : 0.5333 arcs/min @ PA = 235 deg Horizontal Parallax : 5.0920 arcs Dynamical Class : MBA Elongation to Moon & Sun : 169° (sunlit = 0%), Sun = 171° Cross-track uncertainty : 0.4 mas = 0 km = 0.05 path-width (1-sig) RUWE and duplicate source : 1.04 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#60 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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