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Stellar Occultation by (491817) 2013 AF1 on 2023-11-29 (20:56:52 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] : 401eaf90-ddb4-11f0-547e-81895efe3118 [observed]

 Occultation Date + Time   : 2023-11-29 at 20:56:52 UT +/- 0.08 min  [1]
 Object Designation        : (491817) 2013 AF1
 Star Designation          : GDR3 0192420891412459264
 Star Coordinates (ICRF)   : RA = 05 56 11.7947, DE = +42 27 41.900  [2]
 Star Magnitudes           : G = 12.33 mag, RP = 12.12 mag, BP = 12.43 mag
 Object Magnitude          : V = 20.82 mag
 Estimated Magnitude Drop  : 8.5 mag
 Estimated Max. Duration   : 0.4 sec
 Speed of the shadow       : 16.1 km/s
 Object Mean Diameter      : 5.9 km  (src: astorb) => apparent = 2 mas
 Apparent Motion           : 0.3267 arcs/min @ PA = 293 deg
 Horizontal Parallax       : 2.1550 arcs
 Dynamical Class           : JTRO
 Elongation to Moon & Sun  : 16° (sunlit = 93%), Sun = 151°
 Cross-track uncertainty   : 22.7 mas = 67 km = 11.39 path-width (1-sig)
 RUWE and duplicate source : 1.13 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL28
 Note                      : FP:true

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


More Data and Informations
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