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164782 (1999 DK4)
Classification: Main-belt Asteroid          SPK-ID: 2164782
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08631302303775999 4.4632e-08  
a 2.932869231402711 2.1207e-08 au
q 2.679724421865912 1.3199e-07 au
i 1.353603614625674 5.1095e-06 deg
node 225.8750708908626 0.00017263 deg
peri 358.0857750692004 0.00017472 deg
M 14.56173358203467 2.4842e-05 deg
tp 2458926.292456341043
(2020-Mar-17.79245634)
0.00012683 TDB
period 1834.583469524772
5.02
1.9898e-05
5.448e-08
d
yr
n .1962298287214231 2.1283e-09 deg/d
Q 3.186014040939511 2.3037e-08 au
  Orbit Determination Parameters
   # obs. used (total)      463  
   data-arc span      9628 days (26.36 yr)  
   first obs. used      1994-02-11  
   last obs. used      2020-06-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51292  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 11:47:20  

Additional Information
 Earth MOID = 1.67065 au 
 Jupiter MOID = 1.79093 au 
 T_jup = 3.270 
[ 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 15.8   n/a MPO433055  

164782 (1999 DK4)          Discovered 1999-Feb-16 by Ondrejov at Ondrejov
Reference: 20071026/Numbers.arcLast Updated: 2007-10-28

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Alternate Designations
 1999 DK4 = 2002 VZ131 = 2005 JZ166 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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