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146939 (2002 DR17)
Classification: Inner Main-belt Asteroid          SPK-ID: 2146939
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06178411969954822 5.1674e-08  
a 1.894222227059339 8.6857e-09 au
q 1.77718937424516 1.0264e-07 au
i 25.18040694439377 5.0794e-06 deg
node 123.5087182144545 1.0014e-05 deg
peri 34.40214408143277 5.2906e-05 deg
M 24.84513635778827 4.7037e-05 deg
tp 2458934.782096052055
(2020-Mar-26.28209605)		 0.00012459 TDB
period 952.2364892895366
2.61		 6.5495e-06
1.793e-08		 d
yr
n .3780573460995975 2.6003e-09 deg/d
Q 2.011255079873518 9.2223e-09 au
   Orbit Determination Parameters
   # obs. used (total)      566  
   data-arc span      6663 days (18.24 yr)  
   first obs. used      2002-02-19  
   last obs. used      2020-05-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50513  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 14:22:28  

Additional Information
 Earth MOID = .806688 au 
 Jupiter MOID = 3.05726 au 
 T_jup = 3.837 
[ 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 16.4   n/a MPO453935  

146939 (2002 DR17)          Discovered 2002-Feb-19 by Yeung, W. K. Y. at Desert Eagle
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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