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Stellar Occultation by (206781) 2004 CS109 on 2023-09-22 (20:01:25 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] : 0ff98d30-ddb4-11f0-547e-8c40e9fec861 [observed]

 Occultation Date + Time   : 2023-09-22 at 20:01:25 UT +/- 0.05 min  [1]
 Object Designation        : (206781) 2004 CS109
 Star Designation          : GDR3 2789620467509130368
 Star Coordinates (ICRF)   : RA = 01 00 18.8753, DE = +20 48 10.718  [2]
 Star Magnitudes           : G = 11.52 mag, RP = 10.96 mag, BP = 11.91 mag
 Object Magnitude          : V = 19.58 mag
 Estimated Magnitude Drop  : 8.1 mag
 Estimated Max. Duration   : 0.3 sec
 Speed of the shadow       : 8.7 km/s
 Object Mean Diameter      : 2.7 km  (src: astorb) => apparent = 2 mas
 Apparent Motion           : 0.4033 arcs/min @ PA = 253 deg
 Horizontal Parallax       : 4.9320 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 113° (sunlit = 50%), Sun = 154°
 Cross-track uncertainty   : 16.7 mas = 21 km = 8.00 path-width (1-sig)
 RUWE and duplicate source : 1.14 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


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