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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2010999688068769 7.1031e-08  
a 2.467350924622189 1.9649e-08 AU
q 1.971166730645048 1.8331e-07 AU
i 2.425487239097087 7.3205e-06 deg
node 15.17990912688359 0.00019248 deg
peri 3.100624456890931 0.00019336 deg
M 336.7272515140075 2.9096e-05 deg
tp 2457092.014515697262
(2015-Mar-10.51451570)
0.00011518 JED
period 1415.613874349368
3.88
1.691e-05
4.63e-08
d
yr
n .2543066344030148 3.0378e-09 deg/d
Q 2.96353511859933 2.3601e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      321  
   data-arc span      8474 days (23.20 yr)  
   first obs. used      1991-09-08  
   last obs. used      2014-11-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .48361  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 08:43:02  

Additional Information
 Earth MOID = .973038 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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