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Stellar Occultation by (337337) 2001 FC21 on 2026-09-05 (19:40:35 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] : 705f8b50-d9af-11f1-43f3-b1da3f39d0be [observed]

 Occultation Date + Time   : 2026-09-05 at 19:40:35 UT +/- 0.14 min  [1]
 Object Designation        : (337337) 2001 FC21
 Star Designation          : GDR3 6763869288362148096
 Star Coordinates (ICRF)   : RA = 19 06 34.3113, DE = -26 52 07.230  [2]
 Star Magnitudes           : G = 13.63 mag, RP = 13.1 mag, BP = 13.96 mag
 Object Magnitude          : V = 20.45 mag
 Estimated Magnitude Drop  : 6.8 mag
 Estimated Max. Duration   : 0.6 sec
 Speed of the shadow       : 4.0 km/s
 Object Mean Diameter      : 2.3 km  (src: astorb) => apparent = 2 mas
 Apparent Motion           : 0.1633 arcs/min @ PA = 151 deg
 Horizontal Parallax       : 4.3740 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 168° (sunlit = 33%), Sun = 121°
 Cross-track uncertainty   : 2.6 mas = 3 km = 1.65 path-width (1-sig)
 RUWE and duplicate source : 5.87 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL35
 Note                      : FP:true

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


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