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Stellar Occultation by (5234) Sechenov on 2025-09-20 (21:01:04 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] : 776a8a70-ddb7-11f0-547e-704e8ebf6e40 [observed]

 Occultation Date + Time   : 2025-09-20 at 21:01:04 UT +/- 0.0 min  [1]
 Object Designation        : (5234) Sechenov
 Star Designation          : GDR3 4530746505052300288
 Star Coordinates (ICRF)   : RA = 18 44 15.4539, DE = +20 24 05.139  [2]
 Star Magnitudes           : G = 13.02 mag, RP = 12.54 mag, BP = 13.34 mag
 Object Magnitude          : V = 17.23 mag
 Estimated Magnitude Drop  : 4.2 mag
 Estimated Max. Duration   : 0.8 sec
 Speed of the shadow       : 15.2 km/s
 Object Mean Diameter      : 12.2 km  (src: astorb) => apparent = 7 mas
 Apparent Motion           : 0.5500 arcs/min @ PA = 146 deg
 Horizontal Parallax       : 3.8450 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 109° (sunlit = 1%), Sun = 102°
 Cross-track uncertainty   : 0.7 mas = 1 km = 0.10 path-width (1-sig)
 RUWE and duplicate source : 1.14 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#58
 Note                      : FP:true

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


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