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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1630534893291465 5.3632e-08  
a 2.378595114215727 1.4511e-08 au
q 1.990756881141593 1.2929e-07 au
i 1.498603199023174 5.3084e-06 deg
node 290.8988290873025 0.00024165 deg
peri 295.4940156367236 0.00024249 deg
M 293.9238730432283 2.3815e-05 deg
tp 2457846.435537652816
(2017-Apr-02.93553765)
8.9847e-05 JED
period 1339.921052166633
3.67
1.2262e-05
3.357e-08
d
yr
n .2686725456084783 2.4586e-09 deg/d
Q 2.766433347289861 1.6877e-08 au
  Orbit Determination Parameters
   # obs. used (total)      684  
   data-arc span      13117 days (35.91 yr)  
   first obs. used      1980-03-23  
   last obs. used      2016-02-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56341  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Mar-24 17:23:19  

Additional Information
 Earth MOID = .981517 au 
 Jupiter MOID = 2.2204 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 15.7 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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