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JPL Small-Body Database Browser
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(2017 KW31)
Classification: Apollo [NEO]          SPK-ID: 3775095
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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3921443652053037 6.8234e-05  
a 1.393282791191861 0.00011947 au
q .8469147954884552 2.2474e-05 au
i 5.912917785853784 0.00092227 deg
node 69.0844271629619 2.1585e-05 deg
peri 245.8778813168327 0.00036471 deg
M 144.2146820739325 0.11011 deg
tp 2459155.861942835275
(2020-Nov-02.36194284)
0.15278 TDB
period 600.6995912863408
1.64
0.077263
0.0002115
d
yr
n .5993012234769368 7.7083e-05 deg/d
Q 1.939650786895267 0.00016632 au
  Orbit Determination Parameters
   # obs. used (total)      97  
   data-arc span      3 days  
   first obs. used      2017-05-28  
   last obs. used      2017-05-31  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      6  
   norm. resid. RMS      .44203  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 19:06:56  

Additional Information
 Earth MOID = .000853783 au 
 Jupiter MOID = 3.36959 au 
 T_jup = 4.682 
[ 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 26.5   n/a MPO410065  

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