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Stellar Occultation by (58774) 1998 FA58 on 2025-09-10 (21:38:02 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] : 6a13edd0-ddb7-11f0-547e-9e5efb9dec48 [observed]

 Occultation Date + Time   : 2025-09-10 at 21:38:02 UT +/- 0.02 min  [1]
 Object Designation        : (58774) 1998 FA58
 Star Designation          : GDR3 2672638271468878592
 Star Coordinates (ICRF)   : RA = 21 30 51.1944, DE = -03 41 32.770  [2]
 Star Magnitudes           : G = 11.16 mag, RP = 10.78 mag, BP = 11.38 mag
 Object Magnitude          : V = 17.87 mag
 Estimated Magnitude Drop  : 6.7 mag
 Estimated Max. Duration   : 0.6 sec
 Speed of the shadow       : 9.2 km/s
 Object Mean Diameter      : 5.7 km  (src: astorb) => apparent = 4 mas
 Apparent Motion           : 0.4317 arcs/min @ PA = 223 deg
 Horizontal Parallax       : 5.0130 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 67° (sunlit = 87%), Sun = 153°
 Cross-track uncertainty   : 1.0 mas = 1 km = 0.22 path-width (1-sig)
 RUWE and duplicate source : 1.09 mas, dup.src = 1  (0:false, 1:true)

 Ephemeris Reference       : JPL#62
 Note                      : FP:true

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


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