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JPL Small-Body Database Browser
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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06428420651503008 3.6865e-08  
a 2.338615705187271 7.6711e-09 au
q 2.18827965023572 8.7073e-08 au
i 2.012012413522192 4.0154e-06 deg
node 328.9619325993671 9.8604e-05 deg
peri 175.3604115457894 0.00010251 deg
M 117.1580483928139 2.7985e-05 deg
tp 2458575.385079820779
(2019-Apr-01.88507982)
0.00010135 TDB
period 1306.281329912514
3.58
6.4273e-06
1.76e-08
d
yr
n .2755914761670141 1.356e-09 deg/d
Q 2.488951760138823 8.1642e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1351  
   data-arc span      24987 days (68.41 yr)  
   first obs. used      1950-12-09  
   last obs. used      2019-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52044  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 00:26:44  

Additional Information
 Earth MOID = 1.20029 au 
 Jupiter MOID = 2.50263 au 
 T_jup = 3.562 
[ show covariance matrix ]

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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