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Stellar Occultation by (991) McDonalda on 2012-12-08 (00:24:18 UT)



Event Details
 Occultation UUID [and db] : 2c0a1ddc-4ea5-4e9d-9e1c-c750c593dba7 [observed]

 Occultation Date + Time   : 2012-12-08 at 00:24:18 UT +/- 0.01 min  [1]
 Object Designation        : (991) McDonalda
 Star Designation          : GDR3 3425888124014956928
 Star Coordinates (ICRF)   : RA = 06 14 58.4389, DE = +24 36 58.098  [2]
 Star Magnitudes           : G = 8.75 mag, RP = 7.71 mag, BP = 9.89 mag
 Object Magnitude          : V = 16.26 mag
 Estimated Magnitude Drop  : 7.5 mag
 Estimated Max. Duration   : 2.3 sec
 Object Mean Diameter      : 31 km  (src: astorb)
 Orbital Class             : MBA
 Speed of the shadow       : 13.9 km/s
 Elongation to Moon & Sun  : 90° (sunlit = 36%), Sun = 163°
 Cross-track uncertainty   : 0.7 mas = 1 km = 0.04 path-width (1-sig)
 RUWE and duplicate source : 1.87 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#59

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


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