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153814 (2001 WN5)
Classification: Apollo [NEO, PHA]          SPK-ID: 2153814
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 172 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4670549144118712 8.0752e-09  
a 1.711795518767492 1.331e-09 au
q .9122930092589162 1.402e-08 au
i 1.91916487242699 1.9328e-06 deg
node 277.434353267167 8.9218e-05 deg
peri 44.57060653076861 9.0324e-05 deg
M 126.3547780689482 1.1768e-06 deg
tp 2458713.378692473139
(2019-Aug-17.87869247)
2.7517e-06 TDB
period 818.0432294635305
2.24
9.5411e-07
2.612e-09
d
yr
n .4400745425594276 5.1328e-10 deg/d
Q 2.511298028276067 1.9527e-09 au
  Orbit Determination Parameters
   # obs. used (total)      933  
   # delay obs. used      4  
   # Doppler obs. used      0  
   data-arc span      8776 days (24.03 yr)  
   first obs. used      1996-02-10  
   last obs. used      2020-02-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .3869  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-21 05:14:46  

Additional Information
 Earth MOID = .00163884 au 
 Jupiter MOID = 2.83689 au 
 T_jup = 4.053 
[ 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 18.3   n/a MPO502910  
diameter diameter 0.932 km 0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2011ApJ...743..156M)  
rotation period rot_per 4.253 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Skiff, B.A.; McLelland, K.P.; Sanborn, J.; Pravec, P.; Koehn, B.W. (2019). Minor Planet Bull. 46-4, in press.]
geometric albedo albedo 0.097   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2011ApJ...743..156M)  

153814 (2001 WN5)          Discovered 2001-Nov-20 by LONEOS at Anderson Mesa
Reference: 20070402/Numbers.arcLast Updated: 2007-04-04

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