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212984 (2009 DC)
Classification: Main-belt Asteroid          SPK-ID: 2212984
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07159235992260483 4.7636e-08  
a 2.533004653009151 2.0809e-08 au
q 2.351660872205287 1.2798e-07 au
i 13.20833334312001 5.7774e-06 deg
node 272.5676112320478 5.2121e-05 deg
peri 185.9048870117459 0.00016643 deg
M 351.8705105089967 0.0001606 deg
tp 2459033.751648536058
(2020-Jul-03.25164854)
0.0006569 TDB
period 1472.490183575286
4.03
1.8146e-05
4.968e-08
d
yr
n .2444838030267206 3.0128e-09 deg/d
Q 2.714348433813015 2.2299e-08 au
  Orbit Determination Parameters
   # obs. used (total)      337  
   data-arc span      6437 days (17.62 yr)  
   first obs. used      2002-06-11  
   last obs. used      2020-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53771  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 02:53:04  

Additional Information
 Earth MOID = 1.36878 au 
 Jupiter MOID = 2.45688 au 
 T_jup = 3.409 
[ 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 16.0   n/a MPO503082  

212984 (2009 DC)          Discovered 2009-Feb-17 by Lowe, A. at Mayhill
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10

[ show close-approach data ]
Alternate Designations
 2009 DC = 2003 UV54 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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