- Open Access
Instrumental characteristics of the Electron Spectrum Analyzer (ESA) onboard the Planet-B mission and observational perspectives of the electron measurements
Earth, Planets and Space volume 50, pages207–211(1998)
An Electron Spectrum Analyzer (ESA) onboard the Planet-B mission to the planet Mars will measure the electron energy flux in the range of 12 eV to 15 keV in 32 energy steps. The sensor is essentially a toroidal top-hat electrostatic analyzer mounted on the surface of the spacecraft, which has a spin period of nominally 8 sec. With a 4° × 180° view angle and its spinal motion, the sensor can measure three-dimensional electron velocity distribution functions. Such distribution functions will be taken mostly during the perigee path with a high bit rate burst mode. In a nominal low bit rate mode, the reduced distribution data in the pitch-angle and energy phase space will be recorded and transmitted to Earth together with the burst mode data.
This electron measurement will provide significant information for studies on the structure of the magnetosphere and ionosphere as well as information on particle acceleration and the wave-particle interaction processes around Mars.
Brace, L. H., W. T. Kasprzak, H. A. Taylor, R. F. Theis, C. T. Russel, A. Barnes, J. D. Mihalov, and D. M. Hunten, The ionotail of Venus: its configuration and evidence for ion escape, J. Geophys. Res., 92, 15–26, 1987.
Dubinin, E., R. Lundin, O. Norberg, and N. Pissarenko, Ion acceleration in the Martian tail: Phobos observations, J. Geophys. Res., 98, 3,991–3,997, 1993.
Feldman, W. C., R. C. Anderson, S. J. Bame, S. P. Gary, J. T. Gosling, D. J. McComas, M. F. Thomsen, G. Paschmann, and M. M. Hoppe, Electron velocity distributions near the earth’s bow shock, J. Geophys. Res., 88, 96–110, 1983.
Grard, R., A. Pedersen, S. Klimov, S. Savin, A. Skalsky, J. G. Trotignon, and C. Kennel, First measurements of plasma waves near Mars, Nature, 341, 607–609, 1989.
Hayakawa, H., Y. Saito, and Y. Ito, Instrumental characteristics of the ion spectrum analyzer (ISA) onboard the Planet-B mission and observational perspectives of the ion measurements, in preparation, 1998.
Howe, H. C., R. P. Lin, R. E. McGuire, and K. A. Anderson, Energetic electron scattering from the lunar remanent magnetic field, Geophys. Res. Lett., 1, 101–104, 1974.
Lin, C. S., J. L. Burch, and J. D. Winningham, Near-conjugate observations of polar cusp electron precipitation using DE-1 and DE-2, J. Geophys. Res., 91, 11,186–11,202, 1986.
Lundin, R., A. Zakharov, R. Pellinen, H. Borg, B. Hultqvist, N. Pissarenko, E. M. Dubinin, S. W. Barabash, I. Liede, and H. Koskinen, First measurements of the ionospheric plasma escape from Mars, Nature, 341, 609–612, 1989.
Mukai, T., S. Machida, Y. Saito, M. Hirahara, T. Terasawa, N. Kaya, T. Obara, M. Ejiri, and A. Nishida, The low energy particle (LEP) experiment onboard the GEOTAIL satellite, J. Geomag. Geoelectr., 46, 669–692, 1994.
Ogilvie, K. W., R. J. Fitzenreiter, and J. D. Scudder, Observations of electron beams in the low-latitude boundary layer, J. Geophys. Res., 89, 10,723–10,732, 1984.
Shimazu, H., S. Machida, and M. Tanaka, Macroparticle simulation of collisionless parallel shocks generated by solar wind and planetary plasma interactions, J. Geophys. Res., 101, 7,647–7,658, 1996.
Showstack, R., Mars has crustal, complex magnetic field, EOS Trans. AGU, 78, 429, 1997.
Zhang, M. G. H., J. G. Luhmann, and A. J. Kliore, An observational study of the nightside ionospheres of Mars and Venus with radio occultation methods, J. Geophys. Res., 95, 17, 095–17, 102, 1990.
About this article
Cite this article
Machida, S., Saito, Y., Ito, Y. et al. Instrumental characteristics of the Electron Spectrum Analyzer (ESA) onboard the Planet-B mission and observational perspectives of the electron measurements. Earth Planet Sp 50, 207–211 (1998) doi:10.1186/BF03352105
- Solar Wind
- Radio Occultation
- Velocity Distribution Function
- Mars Global Surveyor
- Instrumental Characteristic