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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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