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Advanced Composition Explorer

ACE u orbiti oko Sunca–Zemlje L 1 tačka.
Advanced Composition Explorer

Advanced Composition Explorer (ACE) jest istraživački program NASA-e čija misija je istraživanje Sunca i svemira, za proučavanje materije koja se sastoji od energetskih čestica iz solarnog vjetra, međuplanetarnog prostora i drugih izvora.

Podatke u realnom vremenu iz ACE koristi Centar za predviđanje vremenskih prilika Nacionalne uprave za okeane i atmosferu (NOAA) za poboljšanje prognoza i upozorenja o solarnim olujama.[1] ACE robotska svemirska letjelica lansirana je 25. augusta 1997. i ušla je u Lissajousovu orbitu blizu tačke L1 Lagrange (koja se nalazi između Sunca i Zemlje na udaljenosti od oko 1,5 miliona km od Zemlje) 12. decembra 1997.[2] Svemirska letjelica trenutno radi na toj orbiti. Budući da je ACE u orbiti koja nije Keplerova i ima redovne manevre zadržavanja stanice, parametri orbite u se mijenjaju s vremenom.

I u 2021. godini[3] letjelica je još uvijek u dobrom stanju, i projektovano je da ima dovoljno pogonskog goriva da održava svoju orbitu do 2024.[4]

Reference

 

  1. ^ "Satellite to aid space weather forecasting". USA Today. 24. 6. 1999. Arhivirano s originala, 18. 10. 2009. Pristupljeno 24. 10. 2008.
  2. ^ "Operations Day -- 346/1997 (12 December 1997)". srl.caltech.edu. 31. 12. 1997. Pristupljeno 28. 10. 2021.
  3. ^ Webber, W. R. (1998), What are the Limits for Ace Galactic Cosmic-Ray Isotope Studies?, Springer Netherlands, str. 239–256, pristupljeno 10. 11. 2021
  4. ^ Garrard, T. L.; Davis, A. J.; Hammond, J. S. (1998), The ACE Science Center, Springer Netherlands, str. 649–663, pristupljeno 10. 11. 2021

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