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Stellar Occultation by (909) Ulla on 2022-08-17 (21:10:10 UT)



Event Details
 Occultation UUID [and db] : cdf7c82c-d480-46f9-9243-85fa17f763c4 [observed]

 Occultation Date + Time   : 2022-08-17 at 21:10:10 UT +/- 0.03 min  [1]
 Object Designation        : (909) Ulla
 Star Designation          : GDR3 6880157903024303104
 Star Coordinates (ICRF)   : RA = 20 19 32.0795, DE = -11 52 18.944  [2]
 Star Magnitudes           : G = 14.38 mag, RP = 13.72 mag, BP = 14.89 mag
 Object Magnitude          : V = 13.86 mag
 Estimated Magnitude Drop  : 0.5 mag
 Estimated Max. Duration   : 8.6 sec
 Object Mean Diameter      : 116 km  (src: astorb)
 Orbital Class             : MBA
 Speed of the shadow       : 13.5 km/s
 Elongation to Moon & Sun  : 96° (sunlit = 63%), Sun = 158°
 Cross-track uncertainty   : 1.0 mas = 1 km = 0.02 path-width (1-sig)
 RUWE and duplicate source : 1.01 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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