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Stellar Occultation by (5550) 1981 UB1 on 2020-10-07 (03:49:43 UT)



Event Details
 Occultation UUID [and db] : efb21d17-fc59-4249-9dee-f0f966ebd48b [observed]

 Occultation Date + Time   : 2020-10-07 at 03:49:43 UT +/- 0.01 min  [1]
 Object Designation        : (5550) 1981 UB1
 Star Designation          : GDR3 0658544483637438848
 Star Coordinates (ICRF)   : RA = 08 43 22.7300, DE = +17 31 01.965  [2]
 Star Magnitudes           : G = 11.87 mag, RP = 11.1 mag, BP = 12.52 mag
 Object Magnitude          : V = 17.77 mag
 Estimated Magnitude Drop  : 5.9 mag
 Estimated Max. Duration   : 0.4 sec
 Object Mean Diameter      : 11 km  (src: astorb)
 Orbital Class             : MBA
 Speed of the shadow       : 29.7 km/s
 Elongation to Moon & Sun  : 57° (sunlit = 77%), Sun = 66°
 Cross-track uncertainty   : 2.0 mas = 4 km = 0.37 path-width (1-sig)
 RUWE and duplicate source : 1.71 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#58

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


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