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Stellar Occultation by (29580) 1998 FK55 on 2023-06-21 (22:59:27 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] : b8f27fb0-ddb3-11f0-547e-28e3fff1b95e [observed]

 Occultation Date + Time   : 2023-06-21 at 22:59:27 UT +/- 0.0 min  [1]
 Object Designation        : (29580) 1998 FK55
 Star Designation          : GDR3 4236974624648469632
 Star Coordinates (ICRF)   : RA = 19 59 31.1644, DE = -00 09 35.385  [2]
 Star Magnitudes           : G = 13.63 mag, RP = 12.83 mag, BP = 14.32 mag
 Object Magnitude          : V = 18.59 mag
 Estimated Magnitude Drop  : 5.0 mag
 Estimated Max. Duration   : 0.8 sec
 Speed of the shadow       : 10.1 km/s
 Object Mean Diameter      : 8.0 km  (src: astorb) => apparent = 4 mas
 Apparent Motion           : 0.3200 arcs/min @ PA = 273 deg
 Horizontal Parallax       : 3.3720 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 153° (sunlit = 13%), Sun = 143°
 Cross-track uncertainty   : 0.3 mas = 0 km = 0.07 path-width (1-sig)
 RUWE and duplicate source : 0.93 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL64
 Prediction generated      : 2025-12-20 14:54:02 UTC
 Note                      : FP:true

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


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