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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2007800705234495 5.4941e-08  
a 2.468490504346533 1.5872e-08 au
q 1.972866806797371 1.3833e-07 au
i 2.425379630860859 5.9786e-06 deg
node 15.1817158339113 0.0001866 deg
peri 3.290450321533219 0.00018767 deg
M 129.1152693637347 2.9188e-05 deg
tp 2457092.433309287411
(2015-Mar-10.93330929)
0.00011137 JED
period 1416.594718485753
3.88
1.3663e-05
3.741e-08
d
yr
n .2541305535748548 2.451e-09 deg/d
Q 2.964114201895695 1.9059e-08 au
  Orbit Determination Parameters
   # obs. used (total)      408  
   data-arc span      8942 days (24.48 yr)  
   first obs. used      1991-09-08  
   last obs. used      2016-03-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55097  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Mar-24 22:39:34  

Additional Information
 Earth MOID = .973601 au 
 Jupiter MOID = 2.49377 au 
 T_jup = 3.456 
[ 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 16.3 mag n/a MPO367054  

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

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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