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Stellar Occultation by (31798) 1999 LY16 on 2025-11-14 (03:43:52 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] : b601af10-ddb8-11f0-547e-adb8fcdf78a3 [observed] Occultation Date + Time : 2025-11-14 at 03:43:52 UT +/- 0.0 min [1] Object Designation : (31798) 1999 LY16 Star Designation : GDR3 0589792227711751040 Star Coordinates (ICRF) : RA = 09 29 22.8788, DE = +10 58 40.721 [2] Star Magnitudes : G = 10.88 mag, RP = 10.38 mag, BP = 11.2 mag Object Magnitude : V = 19.41 mag Estimated Magnitude Drop : 8.5 mag Estimated Max. Duration : 0.3 sec Speed of the shadow : 16.2 km/s Object Mean Diameter : 5.3 km (src: astorb) => apparent = 3 mas Apparent Motion : 0.5083 arcs/min @ PA = 118 deg Horizontal Parallax : 3.3400 arcs Dynamical Class : MBA Elongation to Moon & Sun : 24° (sunlit = 31%), Sun = 91° Cross-track uncertainty : 0.3 mas = 0 km = 0.11 path-width (1-sig) RUWE and duplicate source : 1.1 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#56 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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