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173785 (2001 SQ82)
Classification: Main-belt Asteroid          SPK-ID: 2173785
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01307843348971557 4.1696e-08  
a 2.725749226366198 2.1533e-08 au
q 2.690100696399524 1.0734e-07 au
i 4.548500142565626 5.4014e-06 deg
node 305.9227003277915 6.1595e-05 deg
peri 303.0716725573332 0.00025999 deg
M 148.9980644233822 0.00025249 deg
tp 2458320.192280371945
(2018-Jul-20.69228037)
0.0011554 TDB
period 1643.717856429186
4.50
1.9477e-05
5.333e-08
d
yr
n .2190156897011901 2.5952e-09 deg/d
Q 2.761397756332872 2.1814e-08 au
  Orbit Determination Parameters
   # obs. used (total)      548  
   data-arc span      7926 days (21.70 yr)  
   first obs. used      1999-01-18  
   last obs. used      2020-09-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56292  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 10:17:31  

Additional Information
 Earth MOID = 1.67787 au 
 Jupiter MOID = 2.23709 au 
 T_jup = 3.352 
[ 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 MPO417937  
diameter diameter 4.644 km 0.129 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.057   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

173785 (2001 SQ82)          Discovered 2001-Sep-20 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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