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212130 (2005 ET222)
Classification: Main-belt Asteroid          SPK-ID: 2212130
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1082779289200793 4.5628e-08  
a 2.553504462382334 2.1132e-08 au
q 2.277016287707394 1.2374e-07 au
i 12.92693299650221 4.631e-06 deg
node 105.3992670954097 2.1922e-05 deg
peri 93.39103176609855 3.3851e-05 deg
M 246.4561370822803 2.9781e-05 deg
tp 2459470.572151743692
(2021-Sep-13.07215174)
0.00012681 TDB
period 1490.401773192795
4.08
1.8501e-05
5.065e-08
d
yr
n .2415456063426404 2.9984e-09 deg/d
Q 2.829992637057273 2.342e-08 au
  Orbit Determination Parameters
   # obs. used (total)      409  
   data-arc span      6876 days (18.83 yr)  
   first obs. used      2001-03-25  
   last obs. used      2020-01-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51677  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 02:42:13  

Additional Information
 Earth MOID = 1.31803 au 
 Jupiter MOID = 2.2568 au 
 T_jup = 3.395 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457380.5 (2015-Dec-24.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1084226798844987 4.5622e-08  
q 2.276259848505865 1.2363e-07 au
tp 2457982.222022647857
(2017-Aug-16.72202265)
0.00011637 TDB
node 105.4450229572826 2.1936e-05 deg
peri 93.78454079108289 3.3885e-05 deg
i 12.92344491956892 4.6301e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      409  
   data-arc span      6876 days (18.83 yr)  
   first obs. used      2001-03-25  
   last obs. used      2020-01-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51677  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 02:42:13  

Additional Information
 Jupiter MOID = 2.2568 au 
 T_jup = 3.395 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.081362620179587E-15 -5.58096429594498E-15 -1.698545277241633E-12 2.493980501988336E-14 -3.907050288844949E-13 2.039469339162755E-15
q -5.58096429594498E-15 1.528470212916466E-14 5.453737164185851E-12 -6.655147114648841E-14 1.216435541841777E-12 -3.72870906535182E-15
tp -1.698545277241633E-12 5.453737164185851E-12 1.354158187962638E-8 -2.995667901317667E-11 3.027300882564439E-9 1.274946122668117E-11
node 2.493980501988336E-14 -6.655147114648841E-14 -2.995667901317667E-11 4.811951774290708E-10 -4.751748981637778E-10 1.10641245185551E-11
peri -3.907050288844949E-13 1.216435541841777E-12 3.027300882564439E-9 -4.751748981637778E-10 1.148173085439998E-9 -8.029625598455207E-12
i 2.039469339162755E-15 -3.72870906535182E-15 1.274946122668117E-11 1.10641245185551E-11 -8.029625598455207E-12 2.143751075269774E-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 16.0   n/a MPO454522  

212130 (2005 ET222)          Discovered 2005-Mar-08 by LINEAR at Socorro
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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