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173808 (2001 SH239)
Classification: Main-belt Asteroid          SPK-ID: 2173808
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09940662698449367 6.0978e-08  
a 2.779046816679087 2.8622e-08 au
q 2.502791146401024 1.744e-07 au
i 4.913009099267581 7.1618e-06 deg
node 20.58831827148684 7.8133e-05 deg
peri 268.4537593264907 8.9518e-05 deg
M 356.4715263214091 4.1197e-05 deg
tp 2458617.085424926053
(2019-May-13.58542493)
0.00019353 TDB
period 1692.163104292572
4.63
2.6142e-05
7.157e-08
d
yr
n .2127454493522372 3.2866e-09 deg/d
Q 3.055302486957149 3.1467e-08 au
  Orbit Determination Parameters
   # obs. used (total)      249  
   data-arc span      6556 days (17.95 yr)  
   first obs. used      2001-09-11  
   last obs. used      2019-08-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60137  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 03:46:16  

Additional Information
 Earth MOID = 1.49209 au 
 Jupiter MOID = 2.0982 au 
 T_jup = 3.321 
[ 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 16.2   n/a MPO439994  
diameter diameter 3.180 km 0.247 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.053   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

173808 (2001 SH239)          Discovered 2001-Sep-19 by LINEAR at Socorro
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

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