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4415 Echnaton (4237 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2004415
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06428423163657733 3.6561e-08  
a 2.338615705166953 7.6166e-09 au
q 2.188279591467063 8.6264e-08 au
i 2.012015422176063 3.9921e-06 deg
node 328.9619008131851 9.8325e-05 deg
peri 175.3604181629188 0.0001022 deg
M 117.1580779954959 2.7881e-05 deg
tp 2458575.384972411234
(2019-Apr-01.88497241)
0.00010096 TDB
period 1306.28132989549
3.58
6.3816e-06
1.747e-08
d
yr
n .2755914761706056 1.3464e-09 deg/d
Q 2.488951818866842 8.1063e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1371  
   data-arc span      25377 days (69.48 yr)  
   first obs. used      1950-12-09  
   last obs. used      2020-06-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5242  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 16:09:18  

Additional Information
 Earth MOID = 1.20029 au 
 Jupiter MOID = 2.50263 au 
 T_jup = 3.562 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456568.5 (2013-Oct-03.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0645122541803593 3.6577e-08  
q 2.187232323816899 8.6463e-08 au
tp 2455964.485721991712
(2012-Feb-06.98572199)
0.00010017 TDB
node 329.0099394576953 9.8281e-05 deg
peri 175.404339029666 0.00010212 deg
i 2.013103388415486 3.9921e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1371  
   data-arc span      25377 days (69.48 yr)  
   first obs. used      1950-12-09  
   last obs. used      2020-06-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5242  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 16:09:18  

Additional Information
 Jupiter MOID = 2.50263 au 
 T_jup = 3.562 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.337890259031891E-15 -3.151594624900158E-15 4.444628472999437E-13 -1.278020747903279E-16 1.503294899196586E-13 -5.820990578135791E-17
q -3.151594624900158E-15 7.475907161405851E-15 -1.072578210925259E-12 -5.132450827277827E-17 -3.557569142087399E-13 1.960452389864658E-16
tp 4.444628472999437E-13 -1.072578210925259E-12 1.003306089968436E-8 8.374834462494347E-12 2.784991527756483E-9 6.841924506117665E-13
node -1.278020747903279E-16 -5.132450827277827E-17 8.374834462494347E-12 9.659090118412476E-9 -9.650592449313349E-9 3.083889863235241E-11
peri 1.503294899196586E-13 -3.557569142087399E-13 2.784991527756483E-9 -9.650592449313349E-9 1.042798184254566E-8 -3.062211894119679E-11
i -5.820990578135791E-17 1.960452389864658E-16 6.841924506117665E-13 3.083889863235241E-11 -3.062211894119679E-11 1.593665950735804E-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 15.3   n/a MPO473827  

4415 Echnaton (4237 P-L)          Discovered 1960-Sep-24 by van Houten and Gehrels at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 4237 P-L = 1980 FK3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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