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85438 (1997 EH37)
Classification: Main-belt Asteroid          SPK-ID: 2085438
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07728185595189914 4.3204e-08  
a 2.196542997761699 1.0123e-08 au
q 2.026790078216526 9.3103e-08 au
i 5.008716570505381 4.1028e-06 deg
node 115.1530111081848 6.8669e-05 deg
peri 13.65138400034386 8.1024e-05 deg
M 66.41243520890131 4.2783e-05 deg
tp 2458781.141284195389
(2019-Oct-24.64128420)
0.00014087 TDB
period 1189.071556271973
3.26
8.2197e-06
2.25e-08
d
yr
n .3027572210445325 2.0929e-09 deg/d
Q 2.366295917306871 1.0905e-08 au
  Orbit Determination Parameters
   # obs. used (total)      571  
   data-arc span      8484 days (23.23 yr)  
   first obs. used      1997-02-02  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57503  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 15:36:58  

Additional Information
 Earth MOID = 1.04221 au 
 Jupiter MOID = 2.65585 au 
 T_jup = 3.659 
[ show covariance matrix ]

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 MPO351441  

85438 (1997 EH37)          Discovered 1997-Mar-05 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

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Alternate Designations
 1997 EH37 = 2000 AN81 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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