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541823 (2012 AK20)
Classification: Main-belt Asteroid          SPK-ID: 2541823
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07879759358205959 1.1511e-07  
a 2.596377862793636 4.8796e-08 au
q 2.391789535175766 3.2569e-07 au
i 11.12352242502698 1.1064e-05 deg
node 114.1758360538206 5.3595e-05 deg
peri 5.493378073642758 0.00010091 deg
M 43.15492982652231 8.8903e-05 deg
tp 2459017.319944085398
(2020-Jun-16.81994409)
0.0003743 TDB
period 1528.094713497321
4.18
4.3078e-05
1.179e-07
d
yr
n .2355874912858477 6.6414e-09 deg/d
Q 2.800966190411505 5.2641e-08 au
  Orbit Determination Parameters
   # obs. used (total)      54  
   data-arc span      4785 days (13.10 yr)  
   first obs. used      2008-02-12  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56492  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 13:25:38  

Additional Information
 Earth MOID = 1.40806 au 
 Jupiter MOID = 2.27295 au 
 T_jup = 3.386 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.5   n/a MPO456816  

541823 (2012 AK20)          Discovered 2008-Feb-12 by Mount Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2019-12-13
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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