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541819 (2012 AO11)
Classification: Main-belt Asteroid          SPK-ID: 2541819
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3613860355041119 1.8468e-07  
a 2.623756433186079 1.0782e-07 au
q 1.675567497668553 5.4674e-07 au
i 28.58865867961121 1.1454e-05 deg
node 86.65473115575519 1.4139e-05 deg
peri 88.32723030034893 4.5279e-05 deg
M 64.87338002334087 7.0096e-05 deg
tp 2459116.764408176066
(2020-Sep-24.26440818)
0.00028516 TDB
period 1552.328752107311
4.25
9.569e-05
2.62e-07
d
yr
n .2319096386711219 1.4296e-08 deg/d
Q 3.571945368703605 1.4679e-07 au
  Orbit Determination Parameters
   # obs. used (total)      127  
   data-arc span      4379 days (11.99 yr)  
   first obs. used      2008-04-07  
   last obs. used      2020-04-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .64462  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 20:24:33  

Additional Information
 Earth MOID = .92748 au 
 Jupiter MOID = 2.31888 au 
 T_jup = 3.146 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457323.5 (2015-Oct-28.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3623239138701047 1.8452e-07  
q 1.672284762774041 5.4731e-07 au
tp 2457565.108130697666
(2016-Jun-25.60813070)
0.00018862 TDB
node 86.68039123714267 1.4143e-05 deg
peri 88.31271403455644 4.5309e-05 deg
i 28.59448174698478 1.1445e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      127  
   data-arc span      4379 days (11.99 yr)  
   first obs. used      2008-04-07  
   last obs. used      2020-04-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .64462  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 20:24:33  

Additional Information
 Jupiter MOID = 2.31888 au 
 T_jup = 3.146 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.404947225878555E-14 -1.008261213579398E-13 -2.921977323143299E-11 6.046386373009378E-13 -5.695621087708953E-12 -1.435321998136199E-12
q -1.008261213579398E-13 2.995509349629719E-13 8.954328691734155E-11 -1.817511652859275E-12 1.77287480009727E-11 4.310543530657172E-12
tp -2.921977323143299E-11 8.954328691734155E-11 3.55761225057072E-8 -6.070277597001017E-10 7.996563467639034E-9 1.430744699377539E-9
node 6.046386373009378E-13 -1.817511652859275E-12 -6.070277597001017E-10 2.000144907054141E-10 -2.924147251971655E-10 -1.156555888866948E-11
peri -5.695621087708953E-12 1.77287480009727E-11 7.996563467639034E-9 -2.924147251971655E-10 2.052936049355683E-9 2.859782705589552E-10
i -1.435321998136199E-12 4.310543530657172E-12 1.430744699377539E-9 -1.156555888866948E-11 2.859782705589552E-10 1.309872350498852E-10

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.17   n/a E2021B25  

541819 (2012 AO11)          Discovered 2008-Apr-07 by Mount Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2019-12-13

Alternate Designations
 2012 AO11 = 2008 KA7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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