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71920 (2000 WX54)
Classification: Main-belt Asteroid          SPK-ID: 2071920
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07054793933852588 4.6548e-08  
a 2.605248278779895 1.5048e-08 au
q 2.421453381246732 1.2263e-07 au
i 14.21695202651837 5.1386e-06 deg
node 295.4947894905235 1.7312e-05 deg
peri 235.1988955815846 3.4983e-05 deg
M 174.7295932778225 3.0361e-05 deg
tp 2458255.019876374856
(2018-May-16.51987637)
0.00012971 TDB
period 1535.932405441678
4.21
1.3307e-05
3.643e-08
d
yr
n .2343853145649838 2.0307e-09 deg/d
Q 2.789043176313058 1.6109e-08 au
  Orbit Determination Parameters
   # obs. used (total)      877  
   data-arc span      7679 days (21.02 yr)  
   first obs. used      1999-09-13  
   last obs. used      2020-09-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52847  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-22 18:43:43  

Additional Information
 Earth MOID = 1.45811 au 
 Jupiter MOID = 2.31644 au 
 T_jup = 3.366 
[ 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 14.6   n/a MPO257327  
diameter diameter 3.006 km 0.516 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.316   0.073 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

71920 (2000 WX54)          Discovered 2000-Nov-20 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2000 WX54 = 1999 TD184 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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