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85857 (1999 AK24)
Classification: Main-belt Asteroid          SPK-ID: 2085857
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1249494148498433 5.0017e-08  
a 2.42944355447053 1.4276e-08 au
q 2.125886003928714 1.1932e-07 au
i 10.08617318877888 5.5095e-06 deg
node 278.13668742 3.1425e-05 deg
peri 288.52354481327 3.8645e-05 deg
M 154.6296634931659 2.4614e-05 deg
tp 2458406.414494492147
(2018-Oct-14.91449449)
9.2856e-05 TDB
period 1383.116131480681
3.79
1.2192e-05
3.338e-08
d
yr
n .2602818315874934 2.2943e-09 deg/d
Q 2.733001105012347 1.606e-08 au
  Orbit Determination Parameters
   # obs. used (total)      686  
   data-arc span      7588 days (20.77 yr)  
   first obs. used      1998-11-19  
   last obs. used      2019-08-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56452  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 02:54:11  

Additional Information
 Earth MOID = 1.14517 au 
 Jupiter MOID = 2.33369 au 
 T_jup = 3.477 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456578.5 (2013-Oct-13.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1248783314397756 5.0191e-08  
q 2.127374173462487 1.1995e-07 au
tp 2457021.869814955438
(2014-Dec-30.36981496)
8.9856e-05 TDB
node 278.17826141877 3.1425e-05 deg
peri 288.4321603960828 3.8606e-05 deg
i 10.08443864275075 5.5091e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      686  
   data-arc span      7588 days (20.77 yr)  
   first obs. used      1998-11-19  
   last obs. used      2019-08-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56452  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 02:54:11  

Additional Information
 Jupiter MOID = 2.33369 au 
 T_jup = 3.477 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.519171058377344E-15 -5.988876902326371E-15 7.007026523409654E-14 9.805725583279223E-15 6.8059474347378E-15 4.592209488642528E-15
q -5.988876902326371E-15 1.438714497180604E-14 3.587029163001272E-14 -2.558208171847566E-14 2.508435632597885E-14 -1.078841768473614E-14
tp 7.007026523409654E-14 3.587029163001272E-14 8.074023286372581E-9 -1.450613950139189E-11 2.045132602570114E-9 -1.178424261052585E-12
node 9.805725583279223E-15 -2.558208171847566E-14 -1.450613950139189E-11 9.875140007836373E-10 -9.749628215916722E-10 -7.02671370423619E-12
peri 6.8059474347378E-15 2.508435632597885E-14 2.045132602570114E-9 -9.749628215916722E-10 1.490394939780267E-9 6.535070980117811E-12
i 4.592209488642528E-15 -1.078841768473614E-14 -1.178424261052585E-12 -7.02671370423619E-12 6.535070980117811E-12 3.034988583702607E-11

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 15.1   n/a MPO436375  

85857 (1999 AK24)          Discovered 1999-Jan-15 by McClusky, J. V. at Fair Oaks Ranch
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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