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216886 (2008 US47)
Classification: Main-belt Asteroid          SPK-ID: 2216886
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1531965474577293 7.9157e-08  
a 3.062826443645149 3.2792e-08 au
q 2.593612007016477 2.5257e-07 au
i 5.545626229785841 6.9439e-06 deg
node 31.79851017395002 5.6728e-05 deg
peri 347.6302522522837 5.9839e-05 deg
M 119.3934071192261 2.1097e-05 deg
tp 2458551.178394310763
(2019-Mar-08.67839431)
0.00010811 TDB
period 1957.861691765751
5.36
3.1443e-05
8.609e-08
d
yr
n .1838740711430562 2.953e-09 deg/d
Q 3.532040880273822 3.7816e-08 au
  Orbit Determination Parameters
   # obs. used (total)      342  
   data-arc span      7704 days (21.09 yr)  
   first obs. used      2000-03-03  
   last obs. used      2021-04-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53819  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:42:06  

Additional Information
 Earth MOID = 1.5951 au 
 Jupiter MOID = 1.92907 au 
 T_jup = 3.208 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.56   n/a MPCxxxxx  

216886 (2008 US47)          Discovered 2008-Oct-20 by Spacewatch at Kitt Peak
Reference: 20090707/Numbers.arcLast Updated: 2009-07-09

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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