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Stellar Occultation by (83538) 2001 SD164 on 2023-10-29 (18:26:56 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] : 300a7990-ddb4-11f0-547e-b73eff7e90e7 [observed]

 Occultation Date + Time   : 2023-10-29 at 18:26:56 UT +/- 0.0 min  [1]
 Object Designation        : (83538) 2001 SD164
 Star Designation          : GDR3 2424909436918990464
 Star Coordinates (ICRF)   : RA = 00 19 59.6197, DE = -11 18 24.295  [2]
 Star Magnitudes           : G = 12.23 mag, RP = 11.42 mag, BP = 12.94 mag
 Object Magnitude          : V = 19.62 mag
 Estimated Magnitude Drop  : 7.4 mag
 Estimated Max. Duration   : 0.4 sec
 Speed of the shadow       : 14.5 km/s
 Object Mean Diameter      : 5.0 km  (src: astorb) => apparent = 3 mas
 Apparent Motion           : 0.4567 arcs/min @ PA = 289 deg
 Horizontal Parallax       : 3.3610 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 50° (sunlit = 99%), Sun = 142°
 Cross-track uncertainty   : 1.0 mas = 1 km = 0.38 path-width (1-sig)
 RUWE and duplicate source : 1.0 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL42
 Note                      : FP:true

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


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