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Stellar Occultation by (45850) 2000 SH209 on 2025-12-17 (04:57:36 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] : dc9aaa50-ddb8-11f0-547e-9866f3ffa2fc [observed]

 Occultation Date + Time   : 2025-12-17 at 04:57:36 UT +/- 0.01 min  [1]
 Object Designation        : (45850) 2000 SH209
 Star Designation          : GDR3 3167719082961437312
 Star Coordinates (ICRF)   : RA = 07 13 12.9803, DE = +15 41 13.190  [2]
 Star Magnitudes           : G = 13.57 mag, RP = 12.71 mag, BP = 14.36 mag
 Object Magnitude          : V = 18.02 mag
 Estimated Magnitude Drop  : 4.5 mag
 Estimated Max. Duration   : 0.9 sec
 Speed of the shadow       : 11.9 km/s
 Object Mean Diameter      : 10.1 km  (src: astorb) => apparent = 5 mas
 Apparent Motion           : 0.3700 arcs/min @ PA = 284 deg
 Horizontal Parallax       : 3.3170 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 125° (sunlit = 7%), Sun = 157°
 Cross-track uncertainty   : 0.3 mas = 0 km = 0.06 path-width (1-sig)
 RUWE and duplicate source : 1.08 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL45
 Note                      : FP:true

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


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