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212819 (2007 UJ2)
Classification: Main-belt Asteroid          SPK-ID: 2212819
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2019526599831991 4.1713e-08  
a 2.348666258143269 1.2468e-08 au
q 1.874346859898449 9.6192e-08 au
i 8.969086127894338 4.9693e-06 deg
node 152.4432729269427 2.9124e-05 deg
peri 249.832352245434 3.1403e-05 deg
M 168.4936492359557 1.1775e-05 deg
tp 2458385.165273395162
(2018-Sep-23.66527340)
4.1533e-05 TDB
period 1314.711281892458
3.60
1.0469e-05
2.866e-08
d
yr
n .273824378750138 2.1804e-09 deg/d
Q 2.822985656388089 1.4986e-08 au
  Orbit Determination Parameters
   # obs. used (total)      310  
   data-arc span      8625 days (23.61 yr)  
   first obs. used      1996-09-15  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57899  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 08:50:22  

Additional Information
 Earth MOID = .903875 au 
 Jupiter MOID = 2.63915 au 
 T_jup = 3.515 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457353.5 (2015-Nov-27.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2005310703082969 4.1578e-08  
q 1.878962788891777 9.5705e-08 au
tp 2457069.415314351005
(2015-Feb-15.91531435)
4.0942e-05 TDB
node 152.4766763365947 2.9089e-05 deg
peri 249.8443760970737 3.1426e-05 deg
i 8.970837469663856 4.9708e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      310  
   data-arc span      8625 days (23.61 yr)  
   first obs. used      1996-09-15  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57899  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 08:50:22  

Additional Information
 Jupiter MOID = 2.63915 au 
 T_jup = 3.515 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.728764519135051E-15 -3.958577492957385E-15 -2.102393577857704E-13 -1.583290055721214E-14 -4.126088701297132E-14 -3.670396871956491E-15
q -3.958577492957385E-15 9.159414423403315E-15 4.8666433652147E-13 3.732918523000435E-14 9.922248113097817E-14 8.820655176300649E-15
tp -2.102393577857704E-13 4.8666433652147E-13 1.676281919861654E-9 -7.811085199944041E-12 5.027077374819942E-10 -1.612971102883015E-12
node -1.583290055721214E-14 3.732918523000435E-14 -7.811085199944041E-12 8.461694804100717E-10 -8.379628030004099E-10 1.755541748861628E-11
peri -4.126088701297132E-14 9.922248113097817E-14 5.027077374819942E-10 -8.379628030004099E-10 9.875716864707897E-10 -1.790740406127375E-11
i -3.670396871956491E-15 8.820655176300649E-15 -1.612971102883015E-12 1.755541748861628E-11 -1.790740406127375E-11 2.470847107824734E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.9   n/a MPO418139  

212819 (2007 UJ2)          Discovered 2007-Oct-18 by Lowe, A. at Mayhill
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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