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Stellar Occultation by (5234) Sechenov on 2025-10-20 (17:45:06 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] : 983bc420-ddb8-11f0-547e-538cf7fd6f24 [observed]

 Occultation Date + Time   : 2025-10-20 at 17:45:06 UT +/- 0.0 min  [1]
 Object Designation        : (5234) Sechenov
 Star Designation          : GDR3 4512768905868494592
 Star Coordinates (ICRF)   : RA = 19 09 49.4427, DE = +15 25 08.521  [2]
 Star Magnitudes           : G = 13.09 mag, RP = 12.08 mag, BP = 14.16 mag
 Object Magnitude          : V = 17.41 mag
 Estimated Magnitude Drop  : 4.3 mag
 Estimated Max. Duration   : 0.5 sec
 Speed of the shadow       : 23.7 km/s
 Object Mean Diameter      : 12.2 km  (src: astorb) => apparent = 7 mas
 Apparent Motion           : 0.7800 arcs/min @ PA = 118 deg
 Horizontal Parallax       : 3.4940 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 94° (sunlit = 1%), Sun = 85°
 Cross-track uncertainty   : 0.7 mas = 1 km = 0.10 path-width (1-sig)
 RUWE and duplicate source : 0.96 mas, dup.src = 1  (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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