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Stellar Occultation by (2241) Alcathous on 2021-04-24 (03:23:09 UT)



Event Details
 Occultation UUID [and db] : 5bab24ea-b071-47c7-b780-775ed304d53a [observed]

 Occultation Date + Time   : 2021-04-24 at 03:23:09 UT +/- 0.12 min  [1]
 Object Designation        : (2241) Alcathous
 Star Designation          : GDR3 4061207658033690240
 Star Coordinates (ICRF)   : RA = 17 31 16.3672, DE = -27 51 51.998  [2]
 Star Magnitudes           : G = 14.85 mag, RP = 13.37 mag, BP = 17.8 mag
 Object Magnitude          : V = 15.82 mag
 Estimated Magnitude Drop  : 1.3 mag
 Estimated Max. Duration   : 18.0 sec
 Object Mean Diameter      : 115 km  (src: astorb)
 Orbital Class             : JTRO
 Speed of the shadow       : 6.4 km/s
 Elongation to Moon & Sun  : 92° (sunlit = 87%), Sun = 130°
 Cross-track uncertainty   : 3.3 mas = 10 km = 0.09 path-width (1-sig)
 RUWE and duplicate source : 1.08 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#88

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


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