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175726 Borda (1997 QJ1)
Classification: Main-belt Asteroid          SPK-ID: 2175726
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1975967599288825 7.492e-08  
a 2.58362337792686 2.7696e-08 AU
q 2.073107769571998 1.9308e-07 AU
i 3.308003933813497 9.7528e-06 deg
node 186.4448778273762 0.00013626 deg
peri 143.1508511481412 0.00014023 deg
M 58.6768324608726 3.2641e-05 deg
tp 2456753.267024403220
(2014-Apr-05.76702440)
0.00013741 JED
period 1516.848600752114
4.15
2.4391e-05
6.678e-08
d
yr
n .2373341675771054 3.8163e-09 deg/d
Q 3.094138986281723 3.3169e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      194  
   data-arc span      7687 days (21.05 yr)  
   first obs. used      1993-09-15  
   last obs. used      2014-10-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .6263  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 18:44:13  

Additional Information
 Earth MOID = 1.06401 AU 
 T_jup = 3.393 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.1 mag n/a MPO264395  

175726 Borda           Discovered 1997 Aug. 29 by P. Dupouy and F. Marechal at Observatoire de Dax.
Jean-Charles, chevalier de Borda (1733-1799), was a French scientist and sailor. Born in Dax, his main scientific activities focused on ballistics, waterwheels and pumps. He also participated in the definition of the standard meter, basis of the metric system.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20090806/MPCPages.arcLast Updated: 2011-05-09

Alternate Designations
 1997 QJ1 = 1993 RF16 = 2000 GV117 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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