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277788 (2006 EK2)
Classification: Main-belt Asteroid          SPK-ID: 2277788
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 .02012875600361212 5.3065e-08  
a 2.885008183160326 3.5465e-08 au
q 2.826936557373068 1.5671e-07 au
i 3.11516272884293 5.8354e-06 deg
node 74.16450603332798 0.00011778 deg
peri 176.7585462797044 0.00021148 deg
M 254.0638299279727 0.00017866 deg
tp 2459527.196906865824
(2021-Nov-08.69690687)
0.00089123 TDB
period 1789.8597461356
4.90
3.3004e-05
9.036e-08
d
yr
n .2011330780399183 3.7088e-09 deg/d
Q 2.943079808947585 3.6179e-08 au
  Orbit Determination Parameters
   # obs. used (total)      167  
   data-arc span      5539 days (15.16 yr)  
   first obs. used      2004-12-03  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6096  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 14:14:56  

Additional Information
 Earth MOID = 1.81231 au 
 Jupiter MOID = 2.0363 au 
 T_jup = 3.290 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457545.5 (2016-Jun-06.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02059316012483243 5.3703e-08  
q 2.825524858899138 1.5915e-07 au
tp 2457722.662429159300
(2016-Nov-30.16242916)
0.00085344 TDB
node 74.17356091695736 0.00011779 deg
peri 173.7737451603829 0.00020684 deg
i 3.115244252745432 5.835e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      167  
   data-arc span      5539 days (15.16 yr)  
   first obs. used      2004-12-03  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6096  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 14:14:56  

Additional Information
 Jupiter MOID = 2.0363 au 
 T_jup = 3.290 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.883986744015117E-15 -8.340068062637783E-15 -1.006759952746772E-11 -1.880132613612038E-15 -1.980428615566303E-12 2.960091531856753E-16
q -8.340068062637783E-15 2.532893945486579E-14 3.776695296525606E-11 9.748906942427431E-16 7.42920837054744E-12 1.441388079645694E-16
tp -1.006759952746772E-11 3.776695296525606E-11 7.283650319966332E-7 -3.088889838269972E-10 1.45166144116545E-7 1.666002714595711E-11
node -1.880132613612038E-15 9.748906942427431E-16 -3.088889838269972E-10 1.387449901540032E-8 -1.391483928430912E-8 -1.009184149755598E-10
peri -1.980428615566303E-12 7.42920837054744E-12 1.45166144116545E-7 -1.391483928430912E-8 4.278362431966622E-8 1.040907691472973E-10
i 2.960091531856753E-16 1.441388079645694E-16 1.666002714595711E-11 -1.009184149755598E-10 1.040907691472973E-10 3.404709261181492E-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 16.5   n/a MPO418477  

277788 (2006 EK2)          Discovered 2006-Mar-03 by Nyukasa at Nyukasa
Reference: 20110517/Numbers.arcLast Updated: 2011-05-20

[ show close-approach data ]
Alternate Designations
 2006 EK2 = 2008 UC190 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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