Christmas Fern – Polystichum acrostichoides

by | Dec 9, 2023 | Ferns, NE Native Ferns

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Tsikada (Russian: Цикада meaning cicada), was a Soviet satellite navigation system including ten Low Earth Orbit (LEO) satellites. It transmits the same two carrier frequencies as the U.S. TRANSIT satellite system.[1] The first satellite was launched in 1974.[1]

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References

  1. ^ a b Hofmann-Wellenhof, Bernhard; Lichtenegger, Herbert; Wasle, Elmar (2008). GNSS - Global Navigation Satellite Systems: GPS, GLONASS, Galileo and more. Wien New York: Springer. p. 5. Bibcode:2008gnss.book.....H. doi:10.1007/978-3-211-73017-1. ISBN 978-3-211-73017-1.
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