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108408 (2001 KQ31)
Classification: Main-belt Asteroid          SPK-ID: 2108408
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2209403192813569 4.3769e-08  
a 2.289089231573183 1.0681e-08 au
q 1.783337125885887 9.9333e-08 au
i 10.10265021015083 4.9203e-06 deg
node 99.29333064891996 2.262e-05 deg
peri 160.6232497797799 2.4922e-05 deg
M 169.1005191878236 1.0526e-05 deg
tp 2458406.296848805508
(2018-Oct-14.79684881)
3.5238e-05 TDB
period 1265.005781516372
3.46
8.8538e-06
2.424e-08
d
yr
n .2845836795848201 1.9918e-09 deg/d
Q 2.794841337260477 1.3041e-08 au
  Orbit Determination Parameters
   # obs. used (total)      712  
   data-arc span      7730 days (21.16 yr)  
   first obs. used      1998-09-22  
   last obs. used      2019-11-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50995  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 09:00:37  

Additional Information
 Earth MOID = .770969 au 
 Jupiter MOID = 2.29445 au 
 T_jup = 3.547 
[ 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 15.5   n/a MPO348160  
diameter diameter 5.130 km 0.274 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.056   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

108408 (2001 KQ31)          Discovered 2001-May-22 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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