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541477 (2011 LK18)
Classification: Mars-crossing Asteroid          SPK-ID: 2541477
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1787561089918015 8.5697e-08  
a 1.894950762615749 1.9318e-08 au
q 1.556216737559511 1.6525e-07 au
i 19.1249742185055 7.5768e-06 deg
node 262.6762975453839 2.4603e-05 deg
peri 56.76559159697817 3.2335e-05 deg
M 261.1139358280718 1.8861e-05 deg
tp 2459658.214576990050
(2022-Mar-19.71457699)
5.0602e-05 TDB
period 952.7859006766332
2.61
1.457e-05
3.989e-08
d
yr
n .3778393443315454 5.7779e-09 deg/d
Q 2.233684787671987 2.2771e-08 au
  Orbit Determination Parameters
   # obs. used (total)      249  
   data-arc span      5431 days (14.87 yr)  
   first obs. used      2006-05-28  
   last obs. used      2021-04-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .37826  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 09:01:01  

Additional Information
 Earth MOID = .601903 au 
 Jupiter MOID = 3.0541 au 
 T_jup = 3.868 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458383.5 (2018-Sep-22.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1788812858331149 8.5621e-08  
q 1.555892220844875 1.6515e-07 au
tp 2458705.139679605424
(2019-Aug-09.63967961)
4.9619e-05 TDB
node 262.6874837267891 2.4603e-05 deg
peri 56.71560438904555 3.2337e-05 deg
i 19.12572818977484 7.5768e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      249  
   data-arc span      5431 days (14.87 yr)  
   first obs. used      2006-05-28  
   last obs. used      2021-04-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .37826  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 09:01:01  

Additional Information
 Jupiter MOID = 3.0541 au 
 T_jup = 3.868 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.330979907110725E-15 -1.407666582408826E-14 6.263643228159607E-13 1.002113841749732E-13 9.657272454121938E-14 -9.487475803025552E-14
q -1.407666582408826E-14 2.727540515899663E-14 -1.248064451302769E-12 -1.902559608840347E-13 -2.496859075691E-13 1.847275435657327E-13
tp 6.263643228159607E-13 -1.248064451302769E-12 2.462027426952535E-9 4.22652058671803E-12 1.060167811382268E-9 -8.769662359210575E-12
node 1.002113841749732E-13 -1.902559608840347E-13 4.22652058671803E-12 6.05291271378654E-10 -5.741011817707815E-10 2.255486317665431E-11
peri 9.657272454121938E-14 -2.496859075691E-13 1.060167811382268E-9 -5.741011817707815E-10 1.045672816426793E-9 -2.524271591745423E-11
i -9.487475803025552E-14 1.847275435657327E-13 -8.769662359210575E-12 2.255486317665431E-11 -2.524271591745423E-11 5.740810424657611E-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 17.78   n/a MPCxxxxx  

541477 (2011 LK18)          Discovered 2011-Jun-06 by Schwartz, M., Holvorcem, P. R. at Nogales
Reference: Last Updated: 2019-12-13
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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