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Stellar Occultation by (296817) 2009 WF3 on 2024-12-17 (00:55:54 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] : bfeb3fd0-ddb5-11f0-547e-03a7b5cf508a [observed]

 Occultation Date + Time   : 2024-12-17 at 00:55:54 UT +/- 0.16 min  [1]
 Object Designation        : (296817) 2009 WF3
 Star Designation          : GDR3 0664614101357573376
 Star Coordinates (ICRF)   : RA = 08 36 36.4033, DE = +20 47 48.065  [2]
 Star Magnitudes           : G = 11.1 mag, RP = 10.45 mag, BP = 11.58 mag
 Object Magnitude          : V = 20.88 mag
 Estimated Magnitude Drop  : 9.8 mag
 Estimated Max. Duration   : 0.7 sec
 Speed of the shadow       : 10.5 km/s
 Object Mean Diameter      : 7.1 km  (src: astorb) => apparent = 2 mas
 Apparent Motion           : 0.1883 arcs/min @ PA = 292 deg
 Horizontal Parallax       : 1.9110 arcs
 Dynamical Class           : JTRO
 Elongation to Moon & Sun  : 19° (sunlit = 97%), Sun = 139°
 Cross-track uncertainty   : 20.7 mas = 69 km = 9.73 path-width (1-sig)
 RUWE and duplicate source : 1.79 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#30
 Note                      : FP:true

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


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