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85426 (1997 AK12)
Classification: Main-belt Asteroid          SPK-ID: 2085426
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1539015489081836 2.8497e-08  
a 2.176312791453454 6.5018e-09 au
q 1.841374881940074 6.3817e-08 au
i .4039568480671284 3.1053e-06 deg
node 122.8330877802873 0.00043684 deg
peri 139.9254516907154 0.000437 deg
M 325.7251900968437 1.035e-05 deg
tp 2459112.148515468618
(2020-Sep-19.64851547)
3.3718e-05 TDB
period 1172.682377590699
3.21
5.2552e-06
1.439e-08
d
yr
n .3069884965267643 1.3757e-09 deg/d
Q 2.511250700966833 7.5025e-09 au
  Orbit Determination Parameters
   # obs. used (total)      867  
   data-arc span      8554 days (23.42 yr)  
   first obs. used      1997-01-09  
   last obs. used      2020-06-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50351  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 00:16:38  

Additional Information
 Earth MOID = .82577 au 
 Jupiter MOID = 2.55071 au 
 T_jup = 3.669 
[ 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 16.3   n/a MPO417413  
diameter diameter 3.091 km 0.099 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.056   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85426 (1997 AK12)          Discovered 1997-Jan-10 by Comba, P. G. at Prescott
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

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Alternate Designations
 1997 AK12 = 2004 FO110 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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