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Stellar Occultation by (303942) 2005 WF85 on 2023-10-16 (21:52:46 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] : 29f3ca20-ddb4-11f0-547e-1a2f7bcf429b [observed]

 Occultation Date + Time   : 2023-10-16 at 21:52:46 UT +/- 0.06 min  [1]
 Object Designation        : (303942) 2005 WF85
 Star Designation          : GDR3 0070487564451560064
 Star Coordinates (ICRF)   : RA = 03 50 55.6141, DE = +26 52 51.314  [2]
 Star Magnitudes           : G = 12.51 mag, RP = 11.76 mag, BP = 13.14 mag
 Object Magnitude          : V = 20.77 mag
 Estimated Magnitude Drop  : 8.3 mag
 Estimated Max. Duration   : 0.3 sec
 Speed of the shadow       : 11.7 km/s
 Object Mean Diameter      : 3.0 km  (src: astorb) => apparent = 2 mas
 Apparent Motion           : 0.3633 arcs/min @ PA = 294 deg
 Horizontal Parallax       : 3.3000 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 166° (sunlit = 5%), Sun = 141°
 Cross-track uncertainty   : 19.0 mas = 36 km = 12.24 path-width (1-sig)
 RUWE and duplicate source : 1.12 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#29
 Note                      : FP:true

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


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