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441306 (2008 AK39)
Classification: Main-belt Asteroid          SPK-ID: 2441306
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2345570950616895 4.7617e-08  
a 2.619623228164113 1.4645e-08 au
q 2.005172013609813 1.2826e-07 au
i 9.314305078734058 3.561e-06 deg
node 117.1654035028071 3.6839e-05 deg
peri 298.35745313252 3.9116e-05 deg
M 66.4782613619474 1.2577e-05 deg
tp 2458914.521207755653
(2020-Mar-06.02120776)
5.2703e-05 TDB
period 1548.662120500272
4.24
1.2987e-05
3.556e-08
d
yr
n .2324587108023973 1.9494e-09 deg/d
Q 3.234074442718413 1.8081e-08 au
  Orbit Determination Parameters
   # obs. used (total)      382  
   data-arc span      8235 days (22.55 yr)  
   first obs. used      1998-09-19  
   last obs. used      2021-04-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5457  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 12:54:42  

Additional Information
 Earth MOID = 1.036 au 
 Jupiter MOID = 2.17375 au 
 T_jup = 3.348 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457889.5 (2017-May-16.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2324868701201294 4.7657e-08  
q 2.012961321227251 1.2809e-07 au
tp 2457362.238348023766
(2015-Dec-05.73834802)
4.8111e-05 TDB
node 117.3631225328133 3.6911e-05 deg
peri 297.7857281814998 3.9266e-05 deg
i 9.299860843770466 3.5583e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      382  
   data-arc span      8235 days (22.55 yr)  
   first obs. used      1998-09-19  
   last obs. used      2021-04-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5457  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 12:54:42  

Additional Information
 Jupiter MOID = 2.17375 au 
 T_jup = 3.348 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.271206948985171E-15 -6.082310235565612E-15 -1.214269093339241E-12 -4.76952902927528E-14 -3.064211816023072E-13 -1.588649851987222E-14
q -6.082310235565612E-15 1.64081518573882E-14 3.379758733924526E-12 1.305059824120997E-13 8.671997550655112E-13 4.338415509425979E-14
tp -1.214269093339241E-12 3.379758733924526E-12 2.31466926160097E-9 3.051752790854365E-11 6.884204383834859E-10 1.200816405059252E-11
node -4.76952902927528E-14 1.305059824120997E-13 3.051752790854365E-11 1.362400046865741E-9 -1.335163298462972E-9 2.137879881276635E-11
peri -3.064211816023072E-13 8.671997550655112E-13 6.884204383834859E-10 -1.335163298462972E-9 1.541781397096993E-9 -1.740602497934504E-11
i -1.588649851987222E-14 4.338415509425979E-14 1.200816405059252E-11 2.137879881276635E-11 -1.740602497934504E-11 1.266169364532498E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.89   n/a MPCxxxxx  

441306 (2008 AK39)          Discovered 2008-Jan-10 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-09-02
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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