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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1627919542557406 5.9922e-08  
a 2.378561077351682 1.54e-08 AU
q 1.991350471252962 1.4367e-07 AU
i 1.498809650493097 5.8855e-06 deg
node 290.9110744418601 0.0002782 deg
peri 295.5920614735929 0.00027903 deg
M 132.5602722641349 2.4163e-05 deg
tp 2456507.120869514545
(2013-Aug-02.62086951)
8.8284e-05 JED
period 1339.8922915672
3.67
1.3013e-05
3.563e-08
d
yr
n .2686783126268509 2.6094e-09 deg/d
Q 2.765771683450402 1.7907e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      585  
   data-arc span      12609 days (34.52 yr)  
   first obs. used      1980-03-23  
   last obs. used      2014-09-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .57227  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 15:19:52  

Additional Information
 Earth MOID = .9839 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 15.6 mag n/a MPO299228  

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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