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Stellar Occultation by (336957) 2011 JJ2 on 2025-08-25 (03:42:49 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] : 54aad1c0-ddb7-11f0-547e-c54fb7f71c2d [observed] Occultation Date + Time : 2025-08-25 at 03:42:49 UT +/- 0.16 min [1] Object Designation : (336957) 2011 JJ2 Star Designation : GDR3 2580008196400260224 Star Coordinates (ICRF) : RA = 01 18 41.3939, DE = +09 51 16.774 [2] Star Magnitudes : G = 11.35 mag, RP = 10.65 mag, BP = 11.89 mag Object Magnitude : V = 21.12 mag Estimated Magnitude Drop : 9.8 mag Estimated Max. Duration : 0.5 sec Speed of the shadow : 3.6 km/s Object Mean Diameter : 1.80 km (src: astorb) => apparent = 1 mas Apparent Motion : 0.1450 arcs/min @ PA = 213 deg Horizontal Parallax : 4.2740 arcs Dynamical Class : MBA Elongation to Moon & Sun : 153° (sunlit = 4%), Sun = 130° Cross-track uncertainty : 3.0 mas = 4 km = 2.49 path-width (1-sig) RUWE and duplicate source : 1.04 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#36 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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