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

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1628227502548208 4.7387e-08  
a 2.753969660009914 1.5622e-08 au
q 2.305560745848766 1.3479e-07 au
i 9.541645476973905 5.363e-06 deg
node 188.33545362096 2.1004e-05 deg
peri 156.6485525613263 2.378e-05 deg
M 255.1135181181086 1.1389e-05 deg
tp 2459686.855880970349
(2022-Apr-17.35588097)
5.4181e-05 TDB
period 1669.310610937315
4.57
1.4204e-05
3.889e-08
d
yr
n .2156578875382938 1.835e-09 deg/d
Q 3.202378574171062 1.8166e-08 au
  Orbit Determination Parameters
   # obs. used (total)      894  
   data-arc span      8306 days (22.74 yr)  
   first obs. used      1998-05-23  
   last obs. used      2021-02-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54907  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:25:05  

Additional Information
 Earth MOID = 1.30066 au 
 Jupiter MOID = 2.25612 au 
 T_jup = 3.305 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.96   n/a E2021B10  

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 | Mission Design | Physical Parameters | Discovery Circumstances ]
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