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JPL Small-Body Database Browser
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85437 (1997 EX31)
Classification: Main-belt Asteroid          SPK-ID: 2085437
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1687138549894414 4.5859e-08  
a 2.275933051500879 1.1435e-08 au
q 1.891951612684283 1.0781e-07 au
i 7.623209950353623 5.1729e-06 deg
node 182.9027242272076 2.6718e-05 deg
peri 17.78956221724385 3.0601e-05 deg
M 142.3231177208173 1.903e-05 deg
tp 2458104.695346005206
(2017-Dec-17.19534601)
6.3441e-05 TDB
period 1254.115833720375
3.43
9.4515e-06
2.588e-08
d
yr
n .2870548240604285 2.1634e-09 deg/d
Q 2.659914490317475 1.3364e-08 au
  Orbit Determination Parameters
   # obs. used (total)      442  
   data-arc span      8799 days (24.09 yr)  
   first obs. used      1995-10-26  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57025  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 08:02:19  

Additional Information
 Earth MOID = .891751 au 
 Jupiter MOID = 2.29779 au 
 T_jup = 3.578 
[ 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 16.4   n/a MPO453284  

85437 (1997 EX31)          Discovered 1997-Mar-11 by Spacewatch at Kitt Peak
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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