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117339 (2004 XO20)
Classification: Main-belt Asteroid          SPK-ID: 2117339
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07313523695114829 4.0399e-08  
a 3.193156172512245 3.2808e-08 au
q 2.95962393921354 1.3513e-07 au
i 14.4583791026277 4.6734e-06 deg
node 78.73452856254248 2.123e-05 deg
peri 30.93432444375114 4.4137e-05 deg
M 228.64487772298 3.7935e-05 deg
tp 2459760.954402989743
(2022-Jun-30.45440299)
0.00022081 TDB
period 2084.14853056858
5.71
3.212e-05
8.794e-08
d
yr
n .1727324107278418 2.6621e-09 deg/d
Q 3.42668840581095 3.5207e-08 au
  Orbit Determination Parameters
   # obs. used (total)      862  
   data-arc span      7205 days (19.73 yr)  
   first obs. used      1998-10-19  
   last obs. used      2018-07-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54345  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 04:36:08  

Additional Information
 Earth MOID = 1.9854 au 
 Jupiter MOID = 1.81744 au 
 T_jup = 3.143 
[ 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 14.0   n/a MPO449686  
diameter diameter 9.021 km 0.276 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.060   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

117339 (2004 XO20)          Discovered 2004-Dec-08 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2004 XO20 = 2000 EW121 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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