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Stellar Occultation by (103143) 1999 XY208 on 2024-09-30 (03:33:26 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] : 767e67a0-ddb5-11f0-547e-a36867dfec82 [observed]

 Occultation Date + Time   : 2024-09-30 at 03:33:26 UT +/- 0.06 min  [1]
 Object Designation        : (103143) 1999 XY208
 Star Designation          : GDR3 0170705815942096640
 Star Coordinates (ICRF)   : RA = 04 07 32.1758, DE = +33 53 56.273  [2]
 Star Magnitudes           : G = 11.39 mag, RP = 10.61 mag, BP = 12.05 mag
 Object Magnitude          : V = 19.4 mag
 Estimated Magnitude Drop  : 8.0 mag
 Estimated Max. Duration   : 0.5 sec
 Speed of the shadow       : 6.5 km/s
 Object Mean Diameter      : 2.9 km  (src: astorb) => apparent = 2 mas
 Apparent Motion           : 0.3217 arcs/min @ PA = 30 deg
 Horizontal Parallax       : 5.2720 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 92° (sunlit = 6%), Sun = 120°
 Cross-track uncertainty   : 2.3 mas = 2 km = 0.96 path-width (1-sig)
 RUWE and duplicate source : 1.26 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#33
 Note                      : FP:true

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


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