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Stellar Occultation by (31799) 1999 LN23 on 2025-10-07 (19:00:46 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] : 8703f5b0-ddb8-11f0-547e-815ebe734fe8 [observed] Occultation Date + Time : 2025-10-07 at 19:00:46 UT +/- 0.0 min [1] Object Designation : (31799) 1999 LN23 Star Designation : GDR3 2820513583155272704 Star Coordinates (ICRF) : RA = 23 32 21.8022, DE = +16 45 31.951 [2] Star Magnitudes : G = 11.95 mag, RP = 11.43 mag, BP = 12.32 mag Object Magnitude : V = 17.24 mag Estimated Magnitude Drop : 5.3 mag Estimated Max. Duration : 0.7 sec Speed of the shadow : 12.0 km/s Object Mean Diameter : 7.9 km (src: astorb) => apparent = 6 mas Apparent Motion : 0.5517 arcs/min @ PA = 234 deg Horizontal Parallax : 4.8710 arcs Dynamical Class : MBA Elongation to Moon & Sun : 27° (sunlit = 99%), Sun = 157° Cross-track uncertainty : 0.3 mas = 0 km = 0.05 path-width (1-sig) RUWE and duplicate source : 0.98 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#63 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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