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Stellar Occultation by (58147) 1986 WK on 2023-08-09 (00:14:41 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] : e6d55330-ddb3-11f0-547e-b07bfbff69a8 [observed]

 Occultation Date + Time   : 2023-08-09 at 00:14:41 UT +/- 0.0 min  [1]
 Object Designation        : (58147) 1986 WK
 Star Designation          : GDR3 0029070400243634176
 Star Coordinates (ICRF)   : RA = 02 55 37.1305, DE = +13 10 42.179  [2]
 Star Magnitudes           : G = 8.74 mag, RP = 8.28 mag, BP = 8.98 mag
 Object Magnitude          : V = 17.82 mag
 Estimated Magnitude Drop  : 9.1 mag
 Estimated Max. Duration   : 0.2 sec
 Speed of the shadow       : 20.8 km/s
 Object Mean Diameter      : 4.5 km  (src: astorb) => apparent = 4 mas
 Apparent Motion           : 1.2233 arcs/min @ PA = 68 deg
 Horizontal Parallax       : 6.2610 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 10° (sunlit = 44%), Sun = 91°
 Cross-track uncertainty   : 3.6 mas = 3 km = 0.81 path-width (1-sig)
 RUWE and duplicate source : 17.08 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#44
 Note                      : FP:true

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


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