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70424 (1999 SA20)
Classification: Main-belt Asteroid          SPK-ID: 2070424
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1881705139668362 4.7297e-08  
a 2.53411577740725 9.6022e-09 au
q 2.05726990912106 1.212e-07 au
i 7.248904404277167 4.9281e-06 deg
node 125.2040509189614 2.9421e-05 deg
peri 249.2664886371281 3.1947e-05 deg
M 36.05910905368684 1.2538e-05 deg
tp 2458852.912152998207
(2020-Jan-04.41215300)
5.1124e-05 TDB
period 1473.459170650613
4.03
8.3748e-06
2.293e-08
d
yr
n .2443230237869709 1.3887e-09 deg/d
Q 3.010961645693441 1.1409e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1003  
   data-arc span      8712 days (23.85 yr)  
   first obs. used      1997-01-09  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54235  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 21:54:37  

Additional Information
 Earth MOID = 1.07083 au 
 Jupiter MOID = 2.48173 au 
 T_jup = 3.413 
[ 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 15.3   n/a MPO417314  

70424 (1999 SA20)          Discovered 1999-Sep-30 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

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