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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1626941229341579 7.3578e-08  
a 2.378869621040294 1.7853e-08 AU
q 1.991841514470431 1.794e-07 AU
i 1.498852995563223 6.6822e-06 deg
node 290.9157216543238 0.00030325 deg
peri 295.6262477705186 0.00030422 deg
M 78.79579430016209 2.5474e-05 deg
tp 2456507.171052267779
(2013-Aug-02.67105227)
9.3839e-05 JED
period 1340.153013514104
3.67
1.5086e-05
4.13e-08
d
yr
n .268626042227835 3.0239e-09 deg/d
Q 2.765897727610157 2.0757e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      547  
   data-arc span      12152 days (33.27 yr)  
   first obs. used      1980-03-23  
   last obs. used      2013-06-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .6082  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Aug-06 01:34:58  

Additional Information
 Earth MOID = .983026 AU 
 T_jup = 3.521 
[ 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 15.5 mag n/a MPO266137  

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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