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JPL Small-Body Database Browser
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105645 (2000 SQ20)
Classification: Main-belt Asteroid          SPK-ID: 2105645
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1596833348992167 4.4859e-08  
a 2.944554098203503 2.2167e-08 au
q 2.474357880011212 1.412e-07 au
i 4.376004441716274 5.6068e-06 deg
node 232.5257638830032 5.7457e-05 deg
peri 92.34686874291161 6.1008e-05 deg
M 2.23180519156994 1.827e-05 deg
tp 2458989.058538167714
(2020-May-19.55853817)
9.3641e-05 TDB
period 1845.558149600613
5.05
2.0841e-05
5.706e-08
d
yr
n .1950629407574644 2.2027e-09 deg/d
Q 3.414750316395793 2.5707e-08 au
  Orbit Determination Parameters
   # obs. used (total)      643  
   data-arc span      6894 days (18.87 yr)  
   first obs. used      2000-08-05  
   last obs. used      2019-06-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56016  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 02:26:43  

Additional Information
 Earth MOID = 1.46734 au 
 Jupiter MOID = 1.93996 au 
 T_jup = 3.248 
[ 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 15.0   n/a MPO436499  
diameter diameter 4.518 km 0.162 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.104   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

105645 (2000 SQ20)          Discovered 2000-Sep-23 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2000 SQ20 = 2002 AJ138 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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