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JPL Small-Body Database Browser
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20805 (2000 SC220)
Classification: Main-belt Asteroid          SPK-ID: 2020805
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1533687356725903 4.3097e-08  
a 2.678331701572234 1.4476e-08 au
q 2.267559354790283 1.1666e-07 au
i 14.23734616327453 5.1562e-06 deg
node 59.87872303468288 2.0181e-05 deg
peri 346.606795518256 2.6186e-05 deg
M 70.63221088503613 1.7222e-05 deg
tp 2458286.380231104335
(2018-Jun-16.88023110)
7.5762e-05 TDB
period 1601.013409965295
4.38
1.298e-05
3.554e-08
d
yr
n .2248575794301459 1.8229e-09 deg/d
Q 3.089104048354185 1.6696e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1514  
   data-arc span      11497 days (31.48 yr)  
   first obs. used      1987-11-19  
   last obs. used      2019-05-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46813  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 02:55:46  

Additional Information
 Earth MOID = 1.2798 au 
 Jupiter MOID = 2.29645 au 
 T_jup = 3.317 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.3   n/a MPO467949  
diameter diameter 6.319 km 0.100 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 18.634 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.488   0.071 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20805 (2000 SC220)          Discovered 2000-Sep-26 by LINEAR at Socorro
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2000 SC220 = 1987 WX4 = 1998 HC139 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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