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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2344486535413811 6.371e-08  
a 2.619451537491358 1.6451e-08 au
q 2.005324651509609 1.7336e-07 au
i 9.314346236107317 3.7366e-06 deg
node 117.1657132132691 4.211e-05 deg
peri 298.3675249650195 4.4612e-05 deg
M 19.98596754928353 1.2381e-05 deg
tp 2458914.532033105811
(2020-Mar-06.03203311)
5.2857e-05 TDB
period 1548.509873519601
4.24
1.4588e-05
3.994e-08
d
yr
n .2324815657660339 2.1901e-09 deg/d
Q 3.233578423473107 2.0308e-08 au
  Orbit Determination Parameters
   # obs. used (total)      336  
   data-arc span      7799 days (21.35 yr)  
   first obs. used      1998-09-19  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55435  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 10:35:06  

Additional Information
 Earth MOID = 1.03682 au 
 Jupiter MOID = 2.17341 au 
 T_jup = 3.348 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457596.5 (2016-Jul-27.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2323751083131937 6.3348e-08  
q 2.01163631702563 1.7192e-07 au
tp 2457361.627469611561
(2015-Dec-05.12746961)
4.9005e-05 TDB
node 117.4196082721058 4.2163e-05 deg
peri 297.5231778518063 4.4767e-05 deg
i 9.304955107964989 3.7333e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      336  
   data-arc span      7799 days (21.35 yr)  
   first obs. used      1998-09-19  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55435  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 10:35:06  

Additional Information
 Jupiter MOID = 2.17341 au 
 T_jup = 3.348 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.013005111047956E-15 -1.086775455428175E-14 -8.451549460797017E-13 -4.641218591884577E-14 -9.641876704657977E-14 -2.929691088206188E-14
q -1.086775455428175E-14 2.955569020052574E-14 2.372406447518844E-12 1.25315456603605E-13 2.943288812957412E-13 8.061385902583043E-14
tp -8.451549460797017E-13 2.372406447518844E-12 2.401468180894163E-9 -1.255698612441452E-11 7.812838557699116E-10 1.181434418124494E-11
node -4.641218591884577E-14 1.25315456603605E-13 -1.255698612441452E-11 1.777702326260763E-9 -1.759843686585634E-9 8.458482118601765E-13
peri -9.641876704657977E-14 2.943288812957412E-13 7.812838557699116E-10 -1.759843686585634E-9 2.004049271211547E-9 2.162265044594605E-12
i -2.929691088206188E-14 8.061385902583043E-14 1.181434418124494E-11 8.458482118601765E-13 2.162265044594605E-12 1.393782139900394E-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 16.7   n/a MPO456091  

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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