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183970 (2004 EC8)
Classification: Main-belt Asteroid          SPK-ID: 2183970
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03147929960509548 3.9794e-08  
a 2.467812860054687 1.5453e-08 au
q 2.390127839663718 9.5227e-08 au
i 7.880641397075532 5.472e-06 deg
node 346.1033108705631 3.1096e-05 deg
peri 299.6710226892766 9.5217e-05 deg
M 321.7126164852236 9.1705e-05 deg
tp 2459151.098258307742
(2020-Oct-28.59825831)
0.00036114 TDB
period 1416.011438072375
3.88
1.33e-05
3.641e-08
d
yr
n .2542352344908105 2.3879e-09 deg/d
Q 2.545497880445657 1.5939e-08 au
  Orbit Determination Parameters
   # obs. used (total)      359  
   data-arc span      10224 days (27.99 yr)  
   first obs. used      1992-01-31  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61991  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 19:44:02  

Additional Information
 Earth MOID = 1.38515 au 
 Jupiter MOID = 2.50923 au 
 T_jup = 3.472 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457164.5 (2015-May-22.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03093414496908444 3.9604e-08  
q 2.39256398965904 9.4687e-08 au
tp 2457727.721845442573
(2016-Dec-05.22184544)
0.00036419 TDB
node 346.1283847038446 3.1093e-05 deg
peri 297.7305483123334 9.682e-05 deg
i 7.88072044919286 5.4708e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      359  
   data-arc span      10224 days (27.99 yr)  
   first obs. used      1992-01-31  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61991  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 19:44:02  

Additional Information
 Jupiter MOID = 2.50923 au 
 T_jup = 3.472 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.56844296785741E-15 -3.704483058459097E-15 2.548179863630609E-12 1.513879630324232E-14 6.228358674804339E-13 3.380680821809467E-15
q -3.704483058459097E-15 8.965548509937778E-15 -4.625704635190195E-12 -3.698169289091826E-14 -1.14143791506204E-12 -7.580496575423603E-15
tp 2.548179863630609E-12 -4.625704635190195E-12 1.326314256251931E-7 7.975632006472902E-12 3.340229975301969E-8 3.516391581666718E-11
node 1.513879630324232E-14 -3.698169289091826E-14 7.975632006472902E-12 9.667786462169216E-10 -9.553526862257418E-10 1.81171960407303E-11
peri 6.228358674804339E-13 -1.14143791506204E-12 3.340229975301969E-8 -9.553526862257418E-10 9.37420316274716E-9 -9.127456087874119E-12
i 3.380680821809467E-15 -7.580496575423603E-15 3.516391581666718E-11 1.81171960407303E-11 -9.127456087874119E-12 2.992995226359088E-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 16.2   n/a MPO422717  

183970 (2004 EC8)          Discovered 2004-Mar-13 by NEAT at Palomar
Reference: 20080420/Numbers.arcLast Updated: 2008-04-23
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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