AOST: Fourier spectrometer for studying mars and phobos
- 79 Downloads
An AOST Fourier spectrometer of the Phobos-Soil project is intended for studying Mars and Phobos by means of measurements of IR radiation spectra of the Martian surface and atmosphere, the Phobos surface, and the spectrum of solar radiation passing through the Martian atmosphere on its limb. The main scientific problems to be solved with the spectrometer on Mars are measurements of methane content, search for minor constituents, and study of diurnal variations in the temperature and atmospheric aerosol. The spectrometer will also study the Martian and Phobos surface both remotely and after landing. The spectral range of the instrument is 2.5–25 μm, the best spectral resolution (without apodization) is 0.6 cm−1, and the instantaneous field of view is 2.5°. The recording time of one spectrum is equal to 5 s in solar observations and 50 s in observations of Mars and Phobos. The instrument has self-thermal stabilization and two-axis pointing systems, as well as a built-in radiation source for flight calibration. The spectrometer mass is 4 kg, and power consumption is up to 13 W. Scientific problems, measurement modes, and, briefly, engineering implementation of the experiment are discussed in this work.
KeywordsSolar System Research Space Vehicle Fourier Spectrometer Martian Atmosphere Mars Global Surveyor
Unable to display preview. Download preview PDF.
- Akim, E.L., Zaslavskii, G.S., Morskoi, I.M., et al., Delivery of Relic Substances from Phobos to the Earth—the Phobos-Soil Project: Ballistics, Navigation, and Flying Control, Astron. Vestn., 2010, vol. 44, no. 1, pp. 29–40.Google Scholar
- Bernath, P.F., McElroy, C.T., Abrams, M.C., et al., Atmospheric Chemistry Experiment (ACE): Mission Overview, Geophys. Rev. Lett., 2005, vol. 32, p. 01.Google Scholar
- Christensen, P.R., Mehall, G.L., Silverman, S.H., et al., Miniature Thermal Emission Spectrometer for the Mars Exploration Rovers, J. Geophys. Res., 2003a, vol. 108, no. E12.Google Scholar
- Giuranna M., Roush T.L., Duxbury T., et al. Compositional interpretation of PFS/MEx and TES/MGS thermal infrared spectra of Phobos, Planet. Space Sci., 2011, in press, doi: 10.1016/j.pss.2011.01.019.Google Scholar
- Gondet, B., Bibring, J.-P., Langevin, Y., and Poulet, F., Phobos Observations by the OMEGA/Mars Express Hyperspectral Imager, European Planet. Sci. Congress 2009, Potsdam, Germany, 2009, p. 773.Google Scholar
- Gorbunov, G.G. and Moshkin, B.E., Fourier Spectrometers for the Study of Planetary Atmospheres, Opt. Zh., 2000, vol. 67, no. 5, pp. 69–75.Google Scholar
- Grigor’ev, A.V., Moshkin, B.E., Korablev, O.I., et al., Miniature AOST Fourier Spectrometer for Space Researches, Opt. Zh., 2009, vol. 76, no. 2, pp. 28–35.Google Scholar
- Murchie, S.L., Choo, T., Humm, D., et al., MRO/CRISM Observations of Phobos and Deimos, 39th Lunar and Planet. Sci. Conf. League City, Texas, 2008, LPI Contribution no. 1391, p. 1434.Google Scholar
- Murchie, S.L., Seelos, F.P., Hash, C.D., et al., Compact Reconnaissance Imaging Spectrometer for Mars Investigation and Data Set from the Mars Reconnaissance Orbiter’s Primary Science Phase, J. Geophys. Res., 2009, vol. 114, p. D07.Google Scholar
- Salisbury, J.W, in Remote Geochemical Analysis: Elemental and Mineralogical Composition, Pieters, C.M. and Englert, P.A.J., Eds., Cambridge: Univ. Press, 1993, p. 79–98.Google Scholar
- Zasova, L.V., Formizano, V., Moroz, V.I., et al., Results of PFS measurements at Mars Express: Clouds and Dust in the End of South Summer. Comparison with OMEGA Images, Kosm. Issl., 2006, vol. 44, no. 4, pp. 319–331.Google Scholar