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66811 (1999 UA6)
Classification: Main-belt Asteroid          SPK-ID: 2066811
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .161678777704958 7.4909e-08  
a 2.755016621605401 2.9984e-08 au
q 2.309588901667397 1.9643e-07 au
i 9.53928103585665 8.0224e-06 deg
node 188.3538694530326 3.7364e-05 deg
peri 156.6966490427044 4.6047e-05 deg
M 270.2080796070977 3.2528e-05 deg
tp 2458017.100245138695
(2017-Sep-20.60024514)
0.00015551 JED
period 1670.262620441574
4.57
2.7267e-05
7.465e-08
d
yr
n .2155349677314968 3.5187e-09 deg/d
Q 3.200444341543405 3.4832e-08 au
  Orbit Determination Parameters
   # obs. used (total)      467  
   data-arc span      6539 days (17.90 yr)  
   first obs. used      1998-05-23  
   last obs. used      2016-04-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .59196  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 15:00:59  

Additional Information
 Earth MOID = 1.30552 au 
 Jupiter MOID = 2.24726 au 
 T_jup = 3.305 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.9 mag n/a MPO272941  

66811 (1999 UA6)          Discovered 1999-Oct-18 by BAO Schmidt CCD Asteroid Program at Xinglong
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 UA6 = 2001 BV51 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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