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216405 (2008 ER132)
Classification: Main-belt Asteroid          SPK-ID: 2216405
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04311015158922822 8.1821e-08  
a 3.020661818366806 3.8555e-08 au
q 2.89044062947722 2.5923e-07 au
i 8.53924790860785 7.5279e-06 deg
node 201.2108356892817 3.9565e-05 deg
peri 137.3187508076832 8.1887e-05 deg
M 11.19462392547498 7.4591e-05 deg
tp 2459336.870853438652
(2021-May-02.37085344)
0.00039687 TDB
period 1917.571586593015
5.25
3.6713e-05
1.005e-07
d
yr
n .1877374500733079 3.5944e-09 deg/d
Q 3.150883007256393 4.0217e-08 au
  Orbit Determination Parameters
   # obs. used (total)      189  
   data-arc span      9401 days (25.74 yr)  
   first obs. used      1995-09-26  
   last obs. used      2021-06-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56944  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 15:35:39  

Additional Information
 Earth MOID = 1.88882 au 
 Jupiter MOID = 2.02466 au 
 T_jup = 3.228 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457019.5 (2014-Dec-28.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04429160084247257 8.1742e-08  
q 2.885625300921576 2.5802e-07 au
tp 2457444.033422566052
(2016-Feb-25.53342257)
0.00037882 TDB
node 201.4614644060511 3.9595e-05 deg
peri 141.7726349065896 8.0314e-05 deg
i 8.537050478004263 7.5241e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      189  
   data-arc span      9401 days (25.74 yr)  
   first obs. used      1995-09-26  
   last obs. used      2021-06-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56944  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 15:35:39  

Additional Information
 Jupiter MOID = 2.02466 au 
 T_jup = 3.228 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.68170263034465E-15 -2.090666218297626E-14 -6.595611780208292E-13 -8.623452792034477E-15 1.895841868241337E-13 -1.024128471464479E-14
q -2.090666218297626E-14 6.657405384510631E-14 6.077012117195173E-12 2.012357798727803E-14 1.035332447593275E-13 3.447981514026116E-14
tp -6.595611780208292E-13 6.077012117195173E-12 1.435028509206292E-7 -6.604035219645582E-11 2.646201959445427E-8 3.367210719468129E-11
node -8.623452792034477E-15 2.012357798727803E-14 -6.604035219645582E-11 1.567763445966219E-9 -1.56266859900399E-9 -4.897141068723635E-11
peri 1.895841868241337E-13 1.035332447593275E-13 2.646201959445427E-8 -1.56266859900399E-9 6.450355085272577E-9 5.419287937953008E-11
i -1.024128471464479E-14 3.447981514026116E-14 3.367210719468129E-11 -4.897141068723635E-11 5.419287937953008E-11 5.661199988027736E-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 16.28   n/a MPCxxxxx  

216405 (2008 ER132)          Discovered 2008-Mar-11 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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