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Stellar Occultation by (20765) 2000 JC40 on 2021-10-30 (18:42:17 UT)



Event Details
 Occultation UUID [and db] : 2db45169-c6e1-4eae-af55-de760e4e6e5f [observed]

 Occultation Date + Time   : 2021-10-30 at 18:42:17 UT +/- 0.01 min  [1]
 Object Designation        : (20765) 2000 JC40
 Star Designation          : GDR3 4225437513554092928
 Star Coordinates (ICRF)   : RA = 20 41 14.0549, DE = -01 57 17.219  [2]
 Star Magnitudes           : G = 12.45 mag, RP = 11.74 mag, BP = 13.02 mag
 Object Magnitude          : V = 18.05 mag
 Estimated Magnitude Drop  : 5.6 mag
 Estimated Max. Duration   : 0.5 sec
 Object Mean Diameter      : 9 km  (src: astorb)
 Orbital Class             : MBA
 Speed of the shadow       : 15.9 km/s
 Elongation to Moon & Sun  : 152° (sunlit = 31%), Sun = 94°
 Cross-track uncertainty   : 2.3 mas = 3 km = 0.46 path-width (1-sig)
 RUWE and duplicate source : 1.06 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#52

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


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