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38237 Roche (1999 OF)
Classification: Main-belt Asteroid          SPK-ID: 2038237
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1630318601642464 5.5911e-08  
a 2.378134127962563 1.4763e-08 au
q 1.990422497360748 1.3402e-07 au
i 1.498921320900241 5.4097e-06 deg
node 290.901892350324 0.00026138 deg
peri 295.5610234892936 0.0002622 deg
M 240.1037744306011 2.4044e-05 deg
tp 2457846.624378120385
(2017-Apr-03.12437812)
9.1465e-05 JED
period 1339.531543721338
3.67
1.2473e-05
3.415e-08
d
yr
n .2687506701035856 2.5025e-09 deg/d
Q 2.765845758564377 1.7169e-08 au
  Orbit Determination Parameters
   # obs. used (total)      662  
   data-arc span      13054 days (35.74 yr)  
   first obs. used      1980-03-23  
   last obs. used      2015-12-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5618  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 14:35:04  

Additional Information
 Earth MOID = .980718 au 
 Jupiter MOID = 2.22035 au 
 T_jup = 3.522 
[ 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 15.7 mag n/a MPO358979  

38237 Roche           Discovered 1999 July 16 at Pises.
Astronomer and mathematician Edouard Roche (1820-1883), of the University of Montpellier, was known for his work on the sun, comets, celestial mechanics and, most notably, for the "Roche limit".
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20050523/MPCPages.arcLast Updated: 2005-07-21

[ show close-approach data ]
Alternate Designations
 1999 OF = 1980 FS8 = 1997 XW7 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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