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Stellar Occultation by (2369) Chekhov on 2023-05-23 (23:14:57 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] : 9c65d810-ddb3-11f0-547e-1425757d21ca [observed]

 Occultation Date + Time   : 2023-05-23 at 23:14:57 UT +/- 0.0 min  [1]
 Object Designation        : (2369) Chekhov
 Star Designation          : GDR3 4110780445398653184
 Star Coordinates (ICRF)   : RA = 17 20 48.8897, DE = -24 58 17.942  [2]
 Star Magnitudes           : G = 14.08 mag, RP = 12.75 mag, BP = 16.15 mag
 Object Magnitude          : V = 15.98 mag
 Estimated Magnitude Drop  : 2.1 mag
 Estimated Max. Duration   : 1.4 sec
 Speed of the shadow       : 9.3 km/s
 Object Mean Diameter      : 12.7 km  (src: astorb) => apparent = 10 mas
 Apparent Motion           : 0.4550 arcs/min @ PA = 268 deg
 Horizontal Parallax       : 5.1790 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 149° (sunlit = 18%), Sun = 161°
 Cross-track uncertainty   : 0.3 mas = 0 km = 0.03 path-width (1-sig)
 RUWE and duplicate source : 1.01 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL71
 Note                      : FP:true

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


More Data and Informations
SiMDA | 3D Asteroid Catalogue | Johnston Archive | Star at CDS (Vizier) | JPL Small-Body Node | Minor Planet Center | Wikipedia
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