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Stellar Occultation by (1191) Alfaterna on 2018-12-09 (23:18:08 UT)



Event Details
 Occultation UUID [and db] : a8d176e1-f424-4a6c-b039-ac5114b44af8 [observed]

 Occultation Date + Time   : 2018-12-09 at 23:18:08 UT +/- 0.01 min  [1]
 Object Designation        : (1191) Alfaterna
 Star Designation          : GDR3 3129338396215057920
 Star Coordinates (ICRF)   : RA = 06 51 53.8707, DE = +05 13 20.822  [2]
 Star Magnitudes           : G = 13.82 mag, RP = 12.93 mag, BP = 14.64 mag
 Object Magnitude          : V = 15.31 mag
 Estimated Magnitude Drop  : 1.7 mag
 Estimated Max. Duration   : 4.0 sec
 Object Mean Diameter      : 42 km  (src: astorb)
 Orbital Class             : MBA
 Speed of the shadow       : 10.6 km/s
 Elongation to Moon & Sun  : 163° (sunlit = 7%), Sun = 149°
 Cross-track uncertainty   : 1.3 mas = 1 km = 0.05 path-width (1-sig)
 RUWE and duplicate source : 1.14 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#62

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


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