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216919 (1996 AK8)
Classification: Main-belt Asteroid          SPK-ID: 2216919
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .189606481136765 8.8199e-08  
a 3.077534023845571 2.8511e-08 au
q 2.494013627005543 2.7293e-07 au
i 24.20243104815955 9.3201e-06 deg
node 300.0265083318415 1.6127e-05 deg
peri 359.3998912893606 2.6682e-05 deg
M 45.27049732872131 1.9567e-05 deg
tp 2458952.520667784691
(2020-Apr-13.02066778)
0.00010794 TDB
period 1971.980978014865
5.40
2.7403e-05
7.503e-08
d
yr
n .1825575418898824 2.5369e-09 deg/d
Q 3.661054420685599 3.3917e-08 au
  Orbit Determination Parameters
   # obs. used (total)      768  
   data-arc span      9097 days (24.91 yr)  
   first obs. used      1996-01-13  
   last obs. used      2020-12-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43227  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:56:48  

Additional Information
 Earth MOID = 1.47641 au 
 Jupiter MOID = 1.59679 au 
 T_jup = 3.068 
[ 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 14.60   n/a E2021B55  

216919 (1996 AK8)          Discovered 1996-Jan-13 by Spacewatch at Kitt Peak
Reference: 20090806/Numbers.arcLast Updated: 2009-08-09

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