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312384 (2008 EE117)
Classification: Main-belt Asteroid          SPK-ID: 2312384
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05229063084257613 6.4122e-08  
a 2.872206743066502 3.3517e-08 au
q 2.722017240561254 1.9082e-07 au
i 2.293274444875676 7.7603e-06 deg
node 165.8999320355984 0.00016373 deg
peri 259.5325260465939 0.00018453 deg
M 302.0121700895941 7.9678e-05 deg
tp 2459286.888997128910
(2021-Mar-13.38899713)
0.00039235 TDB
period 1777.959946521578
4.87
3.1121e-05
8.52e-08
d
yr
n .2024792519675757 3.5442e-09 deg/d
Q 3.022396245571751 3.5269e-08 au
  Orbit Determination Parameters
   # obs. used (total)      145  
   data-arc span      5534 days (15.15 yr)  
   first obs. used      2005-08-30  
   last obs. used      2020-10-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .67905  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 18:47:40  

Additional Information
 Earth MOID = 1.73655 au 
 Jupiter MOID = 2.1388 au 
 T_jup = 3.294 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457730.5 (2016-Dec-08.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05178556473187345 6.596e-08  
q 2.724074690489689 1.9522e-07 au
tp 2457488.409535625630
(2016-Apr-09.90953563)
0.00039975 TDB
node 166.0374092800414 0.00016368 deg
peri 255.6729249767504 0.00018439 deg
i 2.293559784157587 7.7715e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      145  
   data-arc span      5534 days (15.15 yr)  
   first obs. used      2005-08-30  
   last obs. used      2020-10-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .67905  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 18:47:40  

Additional Information
 Jupiter MOID = 2.1388 au 
 T_jup = 3.294 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.350722331645887E-15 -1.270968752864416E-14 -1.033412294039599E-11 3.3978898900005E-14 -2.14942736388859E-12 -1.906396261452235E-15
q -1.270968752864416E-14 3.810916519286289E-14 2.610934230305682E-11 -8.965458625074244E-14 5.431258912498963E-12 6.106182502687654E-15
tp -1.033412294039599E-11 2.610934230305682E-11 1.597992316941504E-7 -3.342473877082248E-10 3.399524626116198E-8 9.346389764798045E-13
node 3.3978898900005E-14 -8.965458625074244E-14 -3.342473877082248E-10 2.679111643891612E-8 -2.683967312978751E-8 6.235687155094748E-10
peri -2.14942736388859E-12 5.431258912498963E-12 3.399524626116198E-8 -2.683967312978751E-8 3.400020031042818E-8 -6.229097649931895E-10
i -1.906396261452235E-15 6.106182502687654E-15 9.346389764798045E-13 6.235687155094748E-10 -6.229097649931895E-10 6.039666767687057E-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 MPO440461  

312384 (2008 EE117)          Discovered 2008-Mar-08 by Spacewatch at Kitt Peak
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

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