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Stellar Occultation by (104606) 2000 GS99 on 2023-09-24 (18:18:54 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] : 13098c50-ddb4-11f0-547e-8ee9f5efa4ef [observed]

 Occultation Date + Time   : 2023-09-24 at 18:18:54 UT +/- 0.02 min  [1]
 Object Designation        : (104606) 2000 GS99
 Star Designation          : GDR3 4202774727822074880
 Star Coordinates (ICRF)   : RA = 18 57 25.8098, DE = -09 48 42.533  [2]
 Star Magnitudes           : G = 12.73 mag, RP = 11.34 mag, BP = 15.15 mag
 Object Magnitude          : V = 20.0 mag
 Estimated Magnitude Drop  : 7.3 mag
 Estimated Max. Duration   : 0.3 sec
 Speed of the shadow       : 12.3 km/s
 Object Mean Diameter      : 3.9 km  (src: astorb) => apparent = 2 mas
 Apparent Motion           : 0.4067 arcs/min @ PA = 107 deg
 Horizontal Parallax       : 3.5140 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 22° (sunlit = 72%), Sun = 103°
 Cross-track uncertainty   : 1.4 mas = 2 km = 0.65 path-width (1-sig)
 RUWE and duplicate source : 1.05 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL50
 Note                      : FP:true

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


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