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270985 (2002 WD29)
Classification: Main-belt Asteroid          SPK-ID: 2270985
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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1428727750863997 6.4005e-08  
a 2.335503131530404 1.6111e-08 au
q 2.001823317905678 1.5053e-07 au
i 4.630879055812403 8.8732e-06 deg
node 208.3054051827894 7.8797e-05 deg
peri 220.1398509532106 8.4467e-05 deg
M 11.91984989297663 2.845e-05 deg
tp 2459157.334438623111
(2020-Nov-03.83443862)
0.00010296 TDB
period 1303.674310935436
3.57
1.349e-05
3.693e-08
d
yr
n .2761425894337723 2.8574e-09 deg/d
Q 2.669182945155129 1.8413e-08 au
  Orbit Determination Parameters
   # obs. used (total)      166  
   data-arc span      6646 days (18.20 yr)  
   first obs. used      2002-10-31  
   last obs. used      2021-01-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58497  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 03:34:25  

Additional Information
 Earth MOID = 1.01763 au 
 Jupiter MOID = 2.61339 au 
 T_jup = 3.550 
[ 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 17.5   n/a MPO281425  

270985 (2002 WD29)          Discovered 2002-Nov-22 by NEAT at Palomar
Reference: 20110418/Numbers.arcLast Updated: 2011-04-22

[ show close-approach data ]
Alternate Designations
 2002 WD29 = 2009 SF37 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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