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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2342262623457714 6.4289e-08  
a 2.618988647385684 1.6591e-08 au
q 2.005552725382528 1.7462e-07 au
i 9.314117393535239 3.8253e-06 deg
node 117.1669518166207 4.2248e-05 deg
peri 298.363578147244 4.4747e-05 deg
M 286.9701662159692 1.2038e-05 deg
tp 2458914.548455671709
(2020-Mar-06.04845567)
5.3152e-05 TDB
period 1548.099429832432
4.24
1.471e-05
4.027e-08
d
yr
n .2325432030156918 2.2097e-09 deg/d
Q 3.23242456938884 2.0477e-08 au
  Orbit Determination Parameters
   # obs. used (total)      328  
   data-arc span      7705 days (21.10 yr)  
   first obs. used      1998-09-19  
   last obs. used      2019-10-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56564  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 15:56:48  

Additional Information
 Earth MOID = 1.03669 au 
 Jupiter MOID = 2.17383 au 
 T_jup = 3.348 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457504.5 (2016-Apr-26.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2323527639988422 6.3884e-08  
q 2.011490674483179 1.7326e-07 au
tp 2457361.567735501192
(2015-Dec-05.06773550)
4.9117e-05 TDB
node 117.4199523668597 4.2295e-05 deg
peri 297.4988158345499 4.4891e-05 deg
i 9.305342885981519 3.8221e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      328  
   data-arc span      7705 days (21.10 yr)  
   first obs. used      1998-09-19  
   last obs. used      2019-10-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56564  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 15:56:48  

Additional Information
 Jupiter MOID = 2.17383 au 
 T_jup = 3.348 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.081173630281715E-15 -1.104456479512768E-14 -8.560982947322671E-13 -4.919940804706675E-14 -9.867515428556937E-14 -3.05328292315739E-14
q -1.104456479512768E-14 3.001837923105802E-14 2.405077675626636E-12 1.323355670724777E-13 3.009037307146378E-13 8.390398385506683E-14
tp -8.560982947322671E-13 2.405077675626636E-12 2.412483135778169E-9 -1.145614544283558E-11 7.830707404887772E-10 1.203487718811724E-11
node -4.919940804706675E-14 1.323355670724777E-13 -1.145614544283558E-11 1.788896426361754E-9 -1.770600093092687E-9 1.393381605922574E-13
peri -9.867515428556937E-14 3.009037307146378E-13 7.830707404887772E-10 -1.770600093092687E-9 2.015186486581615E-9 2.929613043780537E-12
i -3.05328292315739E-14 8.390398385506683E-14 1.203487718811724E-11 1.393381605922574E-13 2.929613043780537E-12 1.460878270978471E-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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