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186908 (2004 LO21)
Classification: Main-belt Asteroid          SPK-ID: 2186908
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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2770486084835774 4.8552e-08  
a 2.589953363949717 1.6769e-08 au
q 1.872410388430088 1.2585e-07 au
i 11.94657539315012 5.2915e-06 deg
node 223.8002186970836 1.9362e-05 deg
peri 116.9764906272118 2.0927e-05 deg
M 295.1192652666267 9.6098e-06 deg
tp 2459474.878199239290
(2021-Sep-17.37819924)
4.1897e-05 TDB
period 1522.426528183813
4.17
1.4786e-05
4.048e-08
d
yr
n .2364646131261677 2.2965e-09 deg/d
Q 3.307496339469346 2.1415e-08 au
  Orbit Determination Parameters
   # obs. used (total)      685  
   data-arc span      7296 days (19.98 yr)  
   first obs. used      2000-06-04  
   last obs. used      2020-05-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45219  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:53:12  

Additional Information
 Earth MOID = .89869 au 
 Jupiter MOID = 2.28481 au 
 T_jup = 3.335 
[ 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 15.64   n/a E2021B55  

186908 (2004 LO21)          Discovered 2004-Jun-12 by LINEAR at Socorro
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

Alternate Designations
 2004 LO21 = 2000 LY33 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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