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Stellar Occultation by (255) Oppavia on 2026-01-17 (19:27:20 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] : 0969d390-de6c-11f0-4858-0c82fbcf3fed [asteroids]

 Occultation Date + Time   : 2026-01-17 at 19:27:20 UT +/- 0.01 min  [1]
 Object Designation        : (255) Oppavia
 Star Designation          : GDR3 0186218413179241472
 Star Coordinates (ICRF)   : RA = 04 57 21.3417, DE = +36 03 26.254  [2]
 Star Magnitudes           : G = 14.47 mag, RP = 13.48 mag, BP = 15.48 mag
 Object Magnitude          : V = 14.83 mag
 Estimated Magnitude Drop  : 1.0 mag
 Estimated Max. Duration   : 9.1 sec
 Speed of the shadow       : 6.3 km/s
 Object Mean Diameter      : 57.4 km  (src: astorb) => apparent = 42 mas
 Apparent Motion           : 0.2800 arcs/min @ PA = 238 deg
 Horizontal Parallax       : 4.7100 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 150° (sunlit = 1%), Sun = 138°
 Cross-track uncertainty   : 0.7 mas = 0 km = 0.02 path-width (1-sig)
 RUWE and duplicate source : 1.07 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#78
 Note                      : FP:true

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


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