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379667 (2011 EN78)
Classification: Main-belt Asteroid          SPK-ID: 2379667
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1306775572469421 7.0895e-08  
a 3.161340039292226 5.6841e-08 au
q 2.748223845330565 2.1279e-07 au
i 2.475687286351685 6.8828e-06 deg
node 76.67333243166108 0.00019554 deg
peri 170.9633525113857 0.00019818 deg
M 183.3235417039857 3.4302e-05 deg
tp 2460008.084385279547
(2023-Mar-04.58438528)
0.00020663 TDB
period 2053.077032441395
5.62
5.5371e-05
1.516e-07
d
yr
n .1753465624092584 4.7291e-09 deg/d
Q 3.574456233253886 6.4269e-08 au
  Orbit Determination Parameters
   # obs. used (total)      111  
   data-arc span      5379 days (14.73 yr)  
   first obs. used      2005-02-09  
   last obs. used      2019-11-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59611  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-05 00:18:46  

Additional Information
 Earth MOID = 1.73452 au 
 Jupiter MOID = 1.45161 au 
 T_jup = 3.190 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457416.5 (2016-Jan-29.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .132998049059524 7.0375e-08  
q 2.740311110051612 2.1216e-07 au
tp 2457955.465896849784
(2017-Jul-20.96589685)
0.00018536 TDB
node 76.74354292859763 0.00019575 deg
peri 171.0197843504542 0.00019832 deg
i 2.475403488298666 6.8785e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      111  
   data-arc span      5379 days (14.73 yr)  
   first obs. used      2005-02-09  
   last obs. used      2019-11-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59611  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-05 00:18:46  

Additional Information
 Jupiter MOID = 1.45161 au 
 T_jup = 3.190 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.952668751771455E-15 -1.456882735361501E-14 -1.88968735853135E-12 1.170374919293182E-14 -2.492484958664075E-13 1.734646213390599E-16
q -1.456882735361501E-14 4.501197672130549E-14 7.959010484542697E-12 -3.371089889150342E-14 1.035024621343677E-12 1.020008350665431E-16
tp -1.88968735853135E-12 7.959010484542697E-12 3.435803638523886E-8 -9.593772193953136E-11 6.00689985834417E-9 5.027071453686205E-12
node 1.170374919293182E-14 -3.371089889150342E-14 -9.593772193953136E-11 3.83167374833426E-8 -3.829714507680795E-8 -8.682656747345898E-11
peri -2.492484958664075E-13 1.035024621343677E-12 6.00689985834417E-9 -3.829714507680795E-8 3.933169162924727E-8 8.760902730508738E-11
i 1.734646213390599E-16 1.020008350665431E-16 5.027071453686205E-12 -8.682656747345898E-11 8.760902730508738E-11 4.731399487744598E-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 16.2   n/a MPO455732  

379667 (2011 EN78)          Discovered 2005-Feb-09 by Spacewatch at Kitt Peak
Reference: Last Updated: 2013-11-20

[ show close-approach data ]
Alternate Designations
 2011 EN78 = 2007 TU308 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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