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JPL Small-Body Database Browser
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172060 (2001 XR208)
Classification: Outer Main-belt Asteroid          SPK-ID: 2172060
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08284625552942061 6.5068e-08  
a 3.433795100454768 4.916e-08 au
q 3.14931803412682 2.1622e-07 au
i 16.64955713991407 5.945e-06 deg
node 247.7104024095486 2.4506e-05 deg
peri 317.2439124430952 4.4003e-05 deg
M 211.0805920338103 3.7896e-05 deg
tp 2459961.910347425328
(2023-Jan-17.41034743)
0.0002529 TDB
period 2324.127726533117
6.36
4.991e-05
1.366e-07
d
yr
n .154896822532645 3.3264e-09 deg/d
Q 3.718272166782717 5.3233e-08 au
  Orbit Determination Parameters
   # obs. used (total)      363  
   data-arc span      6643 days (18.19 yr)  
   first obs. used      2001-11-20  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54972  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 16:42:52  

Additional Information
 Earth MOID = 2.16288 au 
 Jupiter MOID = 1.38452 au 
 T_jup = 3.067 
[ 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 14.5   n/a MPO454179  
diameter diameter 7.216 km 0.207 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.071   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

172060 (2001 XR208)          Discovered 2001-Dec-11 by LINEAR at Socorro
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22

[ show close-approach data ]
Alternate Designations
 2001 XR208 = 2004 KE5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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