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91583 (1999 SK20)
Classification: Main-belt Asteroid          SPK-ID: 2091583
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1986438571237476 5.167e-08  
a 3.025638393168079 2.7162e-08 au
q 2.424613912487474 1.5253e-07 au
i 12.22651312094443 4.6718e-06 deg
node 133.6598843674232 3.0791e-05 deg
peri 233.045926745663 3.4538e-05 deg
M 342.2325316206712 1.6827e-05 deg
tp 2459095.373956221532
(2020-Sep-02.87395622)
9.0475e-05 TDB
period 1922.312369470037
5.26
2.5886e-05
7.087e-08
d
yr
n .1872744543069494 2.5218e-09 deg/d
Q 3.626662873848685 3.2558e-08 au
  Orbit Determination Parameters
   # obs. used (total)      485  
   data-arc span      7625 days (20.88 yr)  
   first obs. used      1999-09-14  
   last obs. used      2020-07-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53242  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 08:18:15  

Additional Information
 Earth MOID = 1.44424 au 
 Jupiter MOID = 1.90596 au 
 T_jup = 3.181 
[ 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 MPO439644  

91583 (1999 SK20)          Discovered 1999-Sep-30 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

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