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392106 (2009 EA4)
Classification: Main-belt Asteroid          SPK-ID: 2392106
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2077085967420225 7.5815e-08  
a 2.79591075466315 4.064e-08 au
q 2.215176055196138 2.1778e-07 au
i 8.013260774226495 8.6867e-06 deg
node 111.779956359062 6.4827e-05 deg
peri 63.80297064818033 6.8753e-05 deg
M 140.670831723187 2.6188e-05 deg
tp 2458333.255598847539
(2018-Aug-02.75559885)
0.00011485 TDB
period 1707.589138930869
4.68
3.7231e-05
1.019e-07
d
yr
n .2108235475340386 4.5967e-09 deg/d
Q 3.376645454130162 4.9081e-08 au
  Orbit Determination Parameters
   # obs. used (total)      121  
   data-arc span      6088 days (16.67 yr)  
   first obs. used      2003-12-19  
   last obs. used      2020-08-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5593  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 16:27:46  

Additional Information
 Earth MOID = 1.23429 au 
 Jupiter MOID = 1.64385 au 
 T_jup = 3.281 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457410.5 (2016-Jan-23.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2060083480791625 7.6089e-08  
q 2.221685640281908 2.1813e-07 au
tp 2456622.965682750055
(2013-Nov-26.46568275)
9.7853e-05 TDB
node 111.8254613834879 6.4909e-05 deg
peri 63.81447109068703 6.8876e-05 deg
i 8.005486721143143 8.6752e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      121  
   data-arc span      6088 days (16.67 yr)  
   first obs. used      2003-12-19  
   last obs. used      2020-08-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5593  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 16:27:46  

Additional Information
 Jupiter MOID = 1.64385 au 
 T_jup = 3.281 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.789565896197333E-15 -1.641871860001874E-14 -3.137820647161482E-13 -1.019630126300803E-14 -8.831045715270887E-14 -2.531719126213455E-15
q -1.641871860001874E-14 4.757989239379532E-14 1.934723545926078E-12 7.445323802079253E-15 5.821152173496965E-13 5.809081804848288E-15
tp -3.137820647161482E-13 1.934723545926078E-12 9.575162521784798E-9 -1.08198968712187E-10 2.339407973855729E-9 -1.279084387017355E-11
node -1.019630126300803E-14 7.445323802079253E-15 -1.08198968712187E-10 4.213236675244402E-9 -4.196389511739061E-9 9.884545752605653E-11
peri -8.831045715270887E-14 5.821152173496965E-13 2.339407973855729E-9 -4.196389511739061E-9 4.743871708474187E-9 -1.006775274005479E-10
i -2.531719126213455E-15 5.809081804848288E-15 -1.279084387017355E-11 9.884545752605653E-11 -1.006775274005479E-10 7.525898291831357E-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 16.7   n/a MPO437605  

392106 (2009 EA4)          Discovered 2009-Mar-15 by OAM at La Sagra
Reference: Last Updated: 2014-04-17

[ show close-approach data ]
Alternate Designations
 2009 EA4 = 2004 BA41 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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