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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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1627919397594061 6.3111e-08  
a 2.378561080557641 1.6016e-08 AU
q 1.991350508417433 1.5239e-07 AU
i 1.498809377341339 6.1198e-06 deg
node 290.9110823002304 0.00028046 deg
peri 295.592051792666 0.00028131 deg
M 132.560271771472 2.4175e-05 deg
tp 2456507.120870350692
(2013-Aug-02.62087035)
8.8297e-05 JED
period 1339.892294276174
3.67
1.3533e-05
3.705e-08
d
yr
n .2686783120836412 2.7137e-09 deg/d
Q 2.765771652697849 1.8623e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      567  
   data-arc span      12580 days (34.44 yr)  
   first obs. used      1980-03-23  
   last obs. used      2014-09-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .57376  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Sep-12 14:37:17  

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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