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171588 Naprstek (1999 WG1)
Classification: Main-belt Asteroid          SPK-ID: 2171588
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2009292111154092 6.9752e-08  
a 2.467264207672803 1.9031e-08 au
q 1.971518756811822 1.7952e-07 au
i 2.425540132694222 7.2432e-06 deg
node 15.17852977064735 0.00019238 deg
peri 3.148024225540825 0.00019327 deg
M 78.42907366567289 2.9849e-05 deg
tp 2457092.112689496807
(2015-Mar-10.61268950)
0.00011483 JED
period 1415.53924574454
3.88
1.6378e-05
4.484e-08
d
yr
n .2543200416959464 2.9425e-09 deg/d
Q 2.963009658533784 2.2855e-08 au
  Orbit Determination Parameters
   # obs. used (total)      329  
   data-arc span      8866 days (24.27 yr)  
   first obs. used      1991-09-08  
   last obs. used      2015-12-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49593  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 18:28:41  

Additional Information
 Earth MOID = .971816 au 
 Jupiter MOID = 2.49569 au 
 T_jup = 3.457 
[ 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 16.2 mag n/a MPO264376  

171588 Náprstek           Discovered 1999 Nov. 26 by J. Ticha and M. Tichy at Klet.
Vojta Náprstek (1826-1894) was a Czech philanthropist and advocate of progressive ideas. In 1865, after living in Wisconsin for a decade, he founded the American Club of Bohemian Women in Prague, offering lectures on various topics. He also co-founded the Czech Tourist Club in 1888.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20120703/MPCPages.arcLast Updated: 2012-07-09

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Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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