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JPL Small-Body Database Browser
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(2013 WR44)
Classification: Apollo [NEO]          SPK-ID: 3653915
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | 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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .409806413372999 8.2678e-08  
a 1.618672141077302 2.5636e-08 au
q .9553299165156199 1.2719e-07 au
i 32.07770635604476 2.5995e-05 deg
node 244.433519034897 9.1045e-06 deg
peri 58.38246984118576 1.7278e-05 deg
M 303.6905812635175 1.4273e-05 deg
tp 2458718.156333007184
(2019-Aug-22.65633301)
3.2014e-05 TDB
period 752.2059512069521
2.06
1.787e-05
4.893e-08
d
yr
n .4785923315580819 1.137e-08 deg/d
Q 2.282014365638985 3.6141e-08 au
  Orbit Determination Parameters
   # obs. used (total)      60  
   data-arc span      2188 days (5.99 yr)  
   first obs. used      2013-11-26  
   last obs. used      2019-11-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54066  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-24 04:51:50  

Additional Information
 Earth MOID = .0831744 au 
 Jupiter MOID = 3.14589 au 
 T_jup = 4.077 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 20.5   n/a MPO428321  

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