Journal of Astronomy and Space Sciences

The Korean Space Science Society (한국우주과학회)
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Science Objectives and Design of Ionospheric Monitoring Instrument Ionospheric Anomaly Monitoring by Magnetometer And Plasma-probe (IAMMAP) for the CAS500-3 Satellite

  • Received : 2022.08.07
  • Accepted : 2022.08.31
  • Published : 2022.09.15
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Abstract

The Ionospheric Anomaly Monitoring by Magnetometer And Plasma-probe (IAMMAP) is one of the scientific instruments for the Compact Advanced Satellite 500-3 (CAS 500-3) which is planned to be launched by Korean Space Launch Vehicle in 2024. The main scientific objective of IAMMAP is to understand the complicated correlation between the equatorial electro-jet (EEJ) and the equatorial ionization anomaly (EIA) which play important roles in the dynamics of the ionospheric plasma in the dayside equator region. IAMMAP consists of an impedance probe (IP) for precise plasma measurement and magnetometers for EEJ current estimation. The designated sun-synchronous orbit along the quasi-meridional plane makes the instrument suitable for studying the EIA and EEJ. The newly-devised IP is expected to obtain the electron density of the ionosphere with unprecedented precision by measuring the upper-hybrid frequency (fUHR) of the ionospheric plasma, which is not affected by the satellite geometry, the spacecraft potential, or contamination unlike conventional Langmuir probes. A set of temperature-tolerant precision fluxgate magnetometers, called Adaptive In-phase MAGnetometer, is employed also for studying the complicated current system in the ionosphere and magnetosphere, which is particularly related with the EEJ caused by the potential difference along the zonal direction.

Keywords

Acknowledgement

This study was supported by the Satellite Development Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science and ICT (NRF-2021M1A3A4A06086639). The authors would like to express their special thanks to the engineers involved in the CAS500-3 mission and KSLV development. The DEMETER ionospheric data were obtained via the CDPP operated by CNES (https://cdpp-archive.cnes.fr), and the SWARM data via the SWARM PDGS (https://swarm-diss.eo.esa. int/) operated by ESA. The authors made use of IGRF-13 provided by the International Association of Geomagnetism and Aeronomy (IAGA) in the data analysis.

References

  1. Alken P, Maus S, Relationship between the ionospheric eastward electric field and the equatorial electrojet, Geophys. Res. Lett. 37, L04104 (2010). https://doi.org/10.1029/2009GL041989
  2. Alken P, Thebault E, Beggan CD, Amit H, Aubert J, et al., International Geomagnetic Reference Field: the thirteenth generation, Earth Planets Space. 73, 49 (2021). https://doi.org/10.1186/s40623-020-01288-x
  3. Appleton EV, Two anomalies in the ionosphere, Nature. 157, 691 (1946). https://doi.org/10.1038/157691a0
  4. Aso T, A sheath resonance observed by a high frequency impedance probe, J. Geomagn. Geoelectr. 25, 325-330 (1973). https://doi.org/10.5636/jgg.25.325
  5. Balmain K, The impedance of a short dipole antenna in a magneto-plasma, IEEE Trans. Antennas Propag. 12, 605-617 (1964). https://doi.org/10.1109/TAP.1964.1138278
  6. Blackwell DD, Cothran CD, Walker DN, Tejero EM, Gatling GR, et al. Advances in impedance probe applications and design in the NRL space physics simulation chamber, IEEE Trans. Plasma. Sci. 43, 2649-2657 (2015). https://doi.org/10.1109/TPS.2015.2450024
  7. Chandra H, Misra RK, Rastogi RG, Equatorial ionospheric drift and the electrojet, Planet. Space Sci. 19, 1497-1503 (1971). https://doi.org/10.1016/0032-0633(71)90009-2
  8. Chapman S, The equatorial electrojet as detected from the abnormal electric current distribution above Huancayo, Peru, and elsewhere, Arch. Meteorol. Geophys. Bioklimatol. Ser. A. 4, 368-390 (1951). https://doi.org/10.1007/BF02246814
  9. Constantinescu OD, Auster HU, Delva M, Hillenmaier O, Magnes W, et al. Principal Component Gradiometer technique for removal of spacecraft-generated disturbances from magnetic field data. Geosci. Instrum. Methods Data Syst. 2020, 1-26 (2020). https://doi.org/10.5194/gi-2020-10
  10. Evans DS, Maynard NC, Troim J, Jacobsen T, Egeland A, Auroral vector electric field and particle comparisons, 2, Electrodynamics of an arc, J. Geophys. Res. 82, 2235-2249 (1977). https://doi.org/10.1029/JA082i016p02235
  11. Fang HK, Chen WH, Chen AB, Oyama KI, The effect of surface contamination of tiny satellite on DC probe ionosphere measurement, AIP Adv. 8, 105220 (2018). https://doi.org/10.1063/1.5052489
  12. Lam MM, Freeman MP, Jackman CM, Rae IJ, Kalmoni NME, et al., How well can we estimate pedersen conductance from the THEMIS white-light all-sky cameras?, J. Geophys. Res. Space Phys. 124, 2920-2934 (2019). https://doi.org/10.1029/2018JA026067
  13. Lastovicka J, On the role of solar and geomagnetic activity in longterm trends in the atmosphere-ionosphere system, J. Atmos. Sol.-Terr. Phys. 67, 83-92 (2005) https://doi.org/10.1016/j.jastp.2004.07.019
  14. Lebreton JP, Stverak S, Travnicek P, Maksimovic M, Klinge D, et al., The ISL Langmuir probe experiment processing onboard DEMETER: scientific objectives, description and first results, Planet. Space Sci. 54, 472-486 (2006). https://doi.org/10.1016/j.pss.2005.10.017
  15. Macmillan S, Olsen N, Observatory data and the Swarm mission, Earth Planets Space 65, 15 (2013). https://doi.org/10.5047/eps.2013.07.011
  16. Moffett RJ, Hanson WB, Effect of ionization transport on the equatorial F-region, Nature. 206, 705-706 (1965). https://doi.org/10.1038/206705a0
  17. Oyama KI, DC Langmuir probe for measurement of space plasma: a brief review, J. Astron. Space Sci. 32, 167-180 (2015). https://doi.org/10.5140/JASS.2015.32.3.167
  18. Ryu K, Lee E, Chae J, Parrot M, Pulinets S. Seismo-ionospheric coupling appearing as equatorial electron density enhancements observed via DEMETER electron density measurements, J. Geophys. Res. Space Phys. 119, 8524-8542 (2014). https://doi.org/10.1002/2014JA020284
  19. Ryu K, Lee J, Kim S, Chung T, Shin GH, et al. Characteristics of the plasma source for ground ionosphere simulation surveyed by disk-type langmuir probe, J. Astron. Space Sci. 34, 343-352 (2017).
  20. Spencer E, Patra S, Ionosphere plasma electron parameters from radio frequency sweeping impedance probe measurements, Radio Sci. 50, 853-865 (2015). https://doi.org/10.1002/2015RS005697
  21. Stolle C, Manoj C, Luhr H, Maus S, Alken P, Estimating the daytime equatorial ionization anomaly strength from electric field proxies, J. Geophys. Res. 113, A09310 (2008). https://doi.org/10.1029/2007JA012781
  22. Wakabayashi M, Suzuki T, Uemoto J, Kumamoto A, Ono T, Impedance probe technique to detect the absolute number density of electrons on-board spacecraft, in An Introduction to Space Instrumentation, eds. Oyama K, Cheng CZ (Terrapub, Tokyo, 2013), 107-123.
  23. Yamazaki Y, Maute A, Sq and EEJ: a review on the daily variation of the geomagnetic field caused by ionospheric dynamo currents, Space Sci. Rev. 206, 299-405 (2017). https://doi.org/10.1007/s11214-016-0282-z