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Stellar Occultation by (494) Virtus on 2025-10-11 (19:10:00 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] : 910d1500-ddb8-11f0-547e-88b05fbf3d32 [observed]

 Occultation Date + Time   : 2025-10-11 at 19:10:00 UT +/- 0.02 min  [1]
 Object Designation        : (494) Virtus
 Star Designation          : GDR3 6802577668234122624
 Star Coordinates (ICRF)   : RA = 20 59 32.3824, DE = -25 28 27.850  [2]
 Star Magnitudes           : G = 12.75 mag, RP = 12.2 mag, BP = 13.13 mag
 Object Magnitude          : V = 14.47 mag
 Estimated Magnitude Drop  : 1.9 mag
 Estimated Max. Duration   : 11.4 sec
 Speed of the shadow       : 7.5 km/s
 Object Mean Diameter      : 85.5 km  (src: astorb) => apparent = 49 mas
 Apparent Motion           : 0.2583 arcs/min @ PA = 42 deg
 Horizontal Parallax       : 3.6480 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 133° (sunlit = 72%), Sun = 111°
 Cross-track uncertainty   : 1.0 mas = 1 km = 0.02 path-width (1-sig)
 RUWE and duplicate source : 0.98 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#80
 Note                      : FP:true

 
 [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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