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Stellar Occultation by (263709) 2008 HX33 on 2025-10-01 (21:19:22 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] : 7cdfad40-ddb8-11f0-547e-0fe42debadd7 [observed]

 Occultation Date + Time   : 2025-10-01 at 21:19:22 UT +/- 0.31 min  [1]
 Object Designation        : (263709) 2008 HX33
 Star Designation          : GDR3 6618954931426974976
 Star Coordinates (ICRF)   : RA = 22 08 52.2394, DE = -27 32 57.439  [2]
 Star Magnitudes           : G = 14.01 mag, RP = 13.47 mag, BP = 14.38 mag
 Object Magnitude          : V = 19.25 mag
 Estimated Magnitude Drop  : 5.3 mag
 Estimated Max. Duration   : 1.4 sec
 Speed of the shadow       : 3.0 km/s
 Object Mean Diameter      : 4.0 km  (src: astorb) => apparent = 3 mas
 Apparent Motion           : 0.1217 arcs/min @ PA = 306 deg
 Horizontal Parallax       : 4.3590 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 26° (sunlit = 69%), Sun = 133°
 Cross-track uncertainty   : 22.7 mas = 33 km = 8.30 path-width (1-sig)
 RUWE and duplicate source : 0.96 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#25
 Note                      : FP:true

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


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