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Stellar Occultation by (4313) Bouchet on 2023-09-30 (21:55:14 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] : 160714e0-ddb4-11f0-547e-e045fb5bfe8d [observed]

 Occultation Date + Time   : 2023-09-30 at 21:55:14 UT +/- 0.0 min  [1]
 Object Designation        : (4313) Bouchet
 Star Designation          : GDR3 6810568368988268928
 Star Coordinates (ICRF)   : RA = 21 50 32.5192, DE = -25 58 37.151  [2]
 Star Magnitudes           : G = 13.14 mag, RP = 12.47 mag, BP = 13.64 mag
 Object Magnitude          : V = 17.29 mag
 Estimated Magnitude Drop  : 4.2 mag
 Estimated Max. Duration   : 3.7 sec
 Speed of the shadow       : 5.4 km/s
 Object Mean Diameter      : 20.0 km  (src: astorb) => apparent = 15 mas
 Apparent Motion           : 0.2367 arcs/min @ PA = 310 deg
 Horizontal Parallax       : 4.6410 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 68° (sunlit = 97%), Sun = 132°
 Cross-track uncertainty   : 0.3 mas = 0 km = 0.02 path-width (1-sig)
 RUWE and duplicate source : 1.02 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#64
 Note                      : FP:true

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


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