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Stellar Occultation by (169255) 2001 SP129 on 2023-08-14 (21:48:54 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] : ec45fea0-ddb3-11f0-547e-387bdfa6ace5 [observed]

 Occultation Date + Time   : 2023-08-14 at 21:48:54 UT +/- 0.07 min  [1]
 Object Designation        : (169255) 2001 SP129
 Star Designation          : GDR3 2685858146446886016
 Star Coordinates (ICRF)   : RA = 21 21 20.9172, DE = -02 03 46.524  [2]
 Star Magnitudes           : G = 11.42 mag, RP = 10.71 mag, BP = 11.98 mag
 Object Magnitude          : V = 18.57 mag
 Estimated Magnitude Drop  : 7.2 mag
 Estimated Max. Duration   : 0.3 sec
 Speed of the shadow       : 9.2 km/s
 Object Mean Diameter      : 3.1 km  (src: astorb) => apparent = 3 mas
 Apparent Motion           : 0.5017 arcs/min @ PA = 239 deg
 Horizontal Parallax       : 5.8030 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 156° (sunlit = 2%), Sun = 167°
 Cross-track uncertainty   : 22.0 mas = 24 km = 7.80 path-width (1-sig)
 RUWE and duplicate source : 1.08 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#33
 Note                      : FP:true

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


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