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Stellar Occultation by (57459) 2001 SC74 on 2026-08-22 (22:19:29 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] : 4ce74d80-d9ae-11f1-43f3-a51eefee702a [observed]

 Occultation Date + Time   : 2026-08-22 at 22:19:29 UT +/- 0.01 min  [1]
 Object Designation        : (57459) 2001 SC74
 Star Designation          : GDR3 2658717389109947520
 Star Coordinates (ICRF)   : RA = 23 11 19.3053, DE = +02 55 17.849  [2]
 Star Magnitudes           : G = 13.56 mag, RP = 12.89 mag, BP = 14.09 mag
 Object Magnitude          : V = 18.48 mag
 Estimated Magnitude Drop  : 4.9 mag
 Estimated Max. Duration   : 0.4 sec
 Speed of the shadow       : 11.0 km/s
 Object Mean Diameter      : 4.0 km  (src: astorb) => apparent = 3 mas
 Apparent Motion           : 0.5483 arcs/min @ PA = 259 deg
 Horizontal Parallax       : 5.2850 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 80° (sunlit = 76%), Sun = 159°
 Cross-track uncertainty   : 2.0 mas = 2 km = 0.60 path-width (1-sig)
 RUWE and duplicate source : 1.0 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL55
 Note                      : FP:true

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


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