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Stellar Occultation by (909) Ulla on 2022-08-16 (21:30:34 UT)



Event Details
 Occultation UUID [and db] : 9b32485f-692b-4752-a8c0-adc851738868 [observed]

 Occultation Date + Time   : 2022-08-16 at 21:30:34 UT +/- 0.03 min  [1]
 Object Designation        : (909) Ulla
 Star Designation          : GDR3 6880254488246038016
 Star Coordinates (ICRF)   : RA = 20 20 06.2146, DE = -11 45 16.078  [2]
 Star Magnitudes           : G = 12.05 mag, RP = 11.21 mag, BP = 12.79 mag
 Object Magnitude          : V = 13.84 mag
 Estimated Magnitude Drop  : 2.0 mag
 Estimated Max. Duration   : 8.5 sec
 Object Mean Diameter      : 116 km  (src: astorb)
 Orbital Class             : MBA
 Speed of the shadow       : 13.7 km/s
 Elongation to Moon & Sun  : 83° (sunlit = 72%), Sun = 159°
 Cross-track uncertainty   : 1.0 mas = 1 km = 0.02 path-width (1-sig)
 RUWE and duplicate source : 0.96 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#128

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


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