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20136 Eisenhart (1996 NA)
Classification: Inner Main-belt Asteroid          SPK-ID: 2020136
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06422651006049654 9.7771e-08  
a 1.930425190679666 1.0497e-08 AU
q 1.806440717749442 1.9147e-07 AU
i 24.25968605098411 8.7497e-06 deg
node 103.8032395119162 1.876e-05 deg
peri 158.9475968894006 5.6112e-05 deg
M 317.5524105478286 5.4592e-05 deg
tp 2457116.012350873371
(2015-Apr-03.51235087)
0.00014877 JED
period 979.6656736248682
2.68
7.9903e-06
2.188e-08
d
yr
n .367472301716933 2.9972e-09 deg/d
Q 2.054409663609889 1.1171e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      461  
   data-arc span      6443 days (17.64 yr)  
   first obs. used      1996-07-08  
   last obs. used      2014-02-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50481  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 22:37:41  

Additional Information
 Earth MOID = .797095 AU 
 T_jup = 3.804 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.8 mag n/a MPO240369  
rotation period rot_per 6.508 h n/a Asteroid Lightcurve DataBase (Rev. 2014-Mar-01) Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2012) http://www.asu.cas.cz/~ppravec/neo.htm]

20136 Eisenhart           Discovered 1996 July 8 by P. G. Comba at Prescott.
Luther Pfahler Eisenhart (1876-1965) was a prolific American mathematician and professor at Princeton who made important contributions in Riemannian and non-Riemannian geometry.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010309/MPCPages.arcLast Updated: 2009-05-11

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