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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2011843006299407 3.2707e-07  
a 2.467514798186223 5.5493e-08 AU
q 1.971089559219098 7.6947e-07 AU
i 2.42543607277875 1.1158e-05 deg
node 15.18425151141716 0.00021467 deg
peri 3.096007534059125 0.00022021 deg
M 285.8767163549606 9.4339e-05 deg
tp 2457092.001118282401
(2015-Mar-10.50111828)
0.00038047 JED
period 1415.75490751599
3.88
4.7759e-05
1.308e-07
d
yr
n .2542813011551817 8.5779e-09 deg/d
Q 2.963940037153348 6.6657e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      291  
   data-arc span      7912 days (21.66 yr)  
   first obs. used      1991-09-08  
   last obs. used      2013-05-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51197  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Aug-07 19:02:46  

Additional Information
 Earth MOID = .971682 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

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