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(2010 WC9)
Classification: Apollo [NEO]          SPK-ID: 3552664
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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2841763956225849 1.4383e-07  
a 1.069054729664654 1.9411e-07 au
q .7652546098652754 2.748e-07 au
i 17.68089716682347 2.0317e-05 deg
node 54.61877843938252 8.3072e-06 deg
peri 275.9291867187579 4.3291e-05 deg
M 242.1192588749423 0.00016049 deg
tp 2459132.702203109708
(2020-Oct-10.20220311)
0.00021596 TDB
period 403.7367992877171
1.11
0.00010996
3.011e-07
d
yr
n .891670020258548 2.4285e-07 deg/d
Q 1.372854849464032 2.4927e-07 au
  Orbit Determination Parameters
   # obs. used (total)      232  
   data-arc span      2723 days (7.46 yr)  
   first obs. used      2010-11-30  
   last obs. used      2018-05-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .26816  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-06 05:18:25  

Additional Information
 Earth MOID = .00100916 au 
 Jupiter MOID = 3.99678 au 
 T_jup = 5.695 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457567.5 (2016-Jun-28.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2787623407316851 9.5852e-08  
q .7783190543782744 1.0774e-07 au
tp 2457505.515655256190
(2016-Apr-27.01565526)
1.0621e-05 TDB
node 54.66179922423776 8.2633e-06 deg
peri 273.522810624517 9.3851e-06 deg
i 17.99288026730546 1.7819e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      232  
   data-arc span      2723 days (7.46 yr)  
   first obs. used      2010-11-30  
   last obs. used      2018-05-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .26816  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-06 05:18:25  

Additional Information
 Jupiter MOID = 3.99678 au 
 T_jup = 5.695 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.187585588258005E-15 -1.032669098189232E-14 -1.038526647954598E-13 -3.781054083163732E-13 8.154137624545937E-13 -7.79309577029085E-13
q -1.032669098189232E-14 1.160786017942952E-14 1.187127073389557E-13 4.273807487004425E-13 -9.157548739437697E-13 8.745052492640638E-13
tp -1.038526647954598E-13 1.187127073389557E-13 1.127969513572361E-10 7.842754725327904E-11 2.99086378728677E-11 6.05314413595888E-11
node -3.781054083163732E-13 4.273807487004425E-13 7.842754725327904E-11 6.828234983750422E-11 -9.444343536000508E-12 5.129210834807838E-11
peri 8.154137624545937E-13 -9.157548739437697E-13 2.99086378728677E-11 -9.444343536000508E-12 8.807959371388246E-11 -3.937640392226099E-11
i -7.79309577029085E-13 8.745052492640638E-13 6.05314413595888E-11 5.129210834807838E-11 -3.937640392226099E-11 3.175211684076275E-10

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 23.6   n/a E2018L03  
rotation period rot_per 0.18469 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Warner, B.D. (2018) Minor Planet Bull. 45, 366-379.]

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