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

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1961607748730931 4.2968e-08  
a 2.584745311480218 1.6272e-08 au
q 2.077719668330664 1.0963e-07 au
i 3.313616101427232 4.8079e-06 deg
node 186.369393504207 6.9012e-05 deg
peri 143.8145652725511 7.0103e-05 deg
M 219.5905856605387 1.4376e-05 deg
tp 2459792.496021832769
(2022-Jul-31.99602183)
6.2557e-05 TDB
period 1517.836740950646
4.16
1.4333e-05
3.924e-08
d
yr
n .237179658580755 2.2397e-09 deg/d
Q 3.091770954629772 1.9464e-08 au
  Orbit Determination Parameters
   # obs. used (total)      540  
   data-arc span      9659 days (26.44 yr)  
   first obs. used      1993-09-15  
   last obs. used      2020-02-25  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55507  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:06:33  

Additional Information
 Earth MOID = 1.06615 au 
 Jupiter MOID = 2.27725 au 
 T_jup = 3.393 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.19   n/a E2021B55  

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 | Mission Design | Physical Parameters | Discovery Circumstances ]
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