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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .2018925269115217 | 3.5654e-08 | |
| a | 2.466567011276411 | 9.4364e-09 | au |
| q | 1.968585564573217 | 9.0621e-08 | au |
| i | 2.421262031953619 | 4.0716e-06 | deg |
| node | 15.13348475597473 | 0.00014092 | deg |
| peri | 3.764750460242705 | 0.00014198 | deg |
| M | 175.3945326557683 | 1.996e-05 | deg |
| tp | 2458511.131625445621
(2019-Jan-27.63162545) | 7.5942e-05 | TDB |
| period | 1414.939286201375
3.87 | 8.1197e-06
2.223e-08 | d
yr |
| n | .2544278779384776 | 1.4601e-09 | deg/d |
| Q | 2.964548457979606 | 1.1342e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
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Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
16.27 |
|
n/a |
E2021B55 |
|
|
| 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.arc | Last Updated: 2012-07-09 |
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