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Stellar Occultation by (29580) 1998 FK55 on 2023-07-19 (22:40:33 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] : d15ca6c0-ddb3-11f0-547e-e9ddbfe9f6c7 [observed]

 Occultation Date + Time   : 2023-07-19 at 22:40:33 UT +/- 0.0 min  [1]
 Object Designation        : (29580) 1998 FK55
 Star Designation          : GDR3 4238317849905670784
 Star Coordinates (ICRF)   : RA = 19 41 22.6552, DE = -00 56 32.813  [2]
 Star Magnitudes           : G = 13.4 mag, RP = 12.51 mag, BP = 14.22 mag
 Object Magnitude          : V = 18.29 mag
 Estimated Magnitude Drop  : 4.9 mag
 Estimated Max. Duration   : 0.6 sec
 Speed of the shadow       : 14.2 km/s
 Object Mean Diameter      : 8.0 km  (src: astorb) => apparent = 4 mas
 Apparent Motion           : 0.4717 arcs/min @ PA = 251 deg
 Horizontal Parallax       : 3.5300 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 146° (sunlit = 4%), Sun = 160°
 Cross-track uncertainty   : 0.3 mas = 0 km = 0.07 path-width (1-sig)
 RUWE and duplicate source : 1.02 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#64
 Note                      : FP:true

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


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