INTERBALL—Dual probe and dual mission

Zelenyǐ, L. M.; Tříska, P.; Петрукович, А. А.

doi:10.1016/s0273-1177(97)00438-9

Cited by 15 publications

(10 citation statements)

References 4 publications

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“…The PO-LAR satellite only reaches altitudes of around 9 R E (Russell, 2000). Recently, the Interball missions (Zelenyi et al, 1997) Correspondence to: M. G. G. T. Taylor (mggtt@mssl.ucl.ac.uk) have flown in the cusp, with INTERBALL-TAIL reaching cusp altitudes of ∼ 10-11 R E . The INTERBALL-TAIL satellite was accompanied by a sub-satellite, MAGION-4, providing simultaneous observations of the high-and midaltitude cusp.…”

Section: Introductionmentioning

confidence: 99%

“…Both HEOS and Hawkeye had rather low resolution plasma detectors. The HEOS full energy spectrum (100 eV-40 keV) was taken every 256 s and Hawkeye, every 210 s. The INTERBALL-TAIL ELECTRON instrument provided 2 min resolution (Zelenyi et al, 1997) over an 10 eV to 22 keV range. In comparison, the Plasma Electron and Current Experiment (PEACE) instrument on board Cluster provides much higher time and energy resolution than its predecessors (∼ 0.6 eV to 27 keV with 4 s resolution), enabling an examination of much smaller-scale plasma phenomena.…”

Section: Introductionmentioning

confidence: 99%

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Four point measurements of electrons using PEACE in the high-altitude cusp

et al. 2001

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Abstract. We present examples of electron measurements from the PEACE instruments on the Cluster spacecraft in the high-latitude, high-altitude region of the Earth's magnetosphere. Using electron density and energy spectra measurements, we examine two cases where the orbit of the Cluster tetrahedron is outbound over the northern hemisphere, in the afternoon sector approaching the magnetopause. Data from the magnetometer is also used to pinpoint the position of the spacecraft with respect to magnetospheric boundaries. This preliminary work specifically highlights the benefit of the multipoint measurement capability of the Cluster mission. In the first case, we observe a small-scale spatial structure within the magnetopause boundary layer. The Cluster spacecraft initially straddle a boundary, characterised by a discontinuous change in the plasma population, with a pair of spacecraft on either side. This is followed by a complete crossing of the boundary by all four spacecraft. In the second case, Cluster encounters an isolated region of higher energy electrons within the cusp. The characteristics of this region are consistent with a trapped boundary layer plasma sheet population on closed magnetospheric field lines. However, a boundary motion study indicates that this region convects past Cluster, a characteristic more consistent with open field lines. An interpretation of this event in terms of the motion of the cusp boundary region is presented.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Four point measurements of electrons using PEACE in the high-altitude cusp

et al. 2001

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“…Микроспутники с научной аппаратурой для исследований плазмы запускались на высокоапо-гейные орбиты в роли субспутников, то есть небольших спутников, находящихся на неко-тором отдалении от основного, более крупно-го КА («Магион-4» в проекте «Интербол [9], AMPTE-UKS в проекте AMPTE [10]) (рис. 3).…”

Section: высокоапогейные спутникиunclassified

Small Satellites for Scientific Research

Petrukovich¹,

Nikiforov²

2016

Rocket-Space Device Engineering and Information Systems

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Аннотация. Рассмотрен мировой опыт запуска научных спутников для исследований плазмы магнитосферы и ионосферы с акцентом на применение малых спутников. Для исследований магнитосферы применяются в основном спутники массой 100-1000 кг. На низкой околоземной орбите (удобной для ионосферных исследований) в последние годы доминируют микро-и наноспутники. В статье представлены перспективные задачи для микро-и наноспутников на различных орбитах, подходы к оценке их эффективности. Обсуждены общие проблемы развития данного направления и возможности их решения в совре-менных условиях как в целом, так и для российского космоса. Abstract. This article reports on the international experience of scientific satellite launches for magnetosphere and ionosphere plasma research with an emphasis on the use of small satellites. For magnetospheric studies, satellites weighting 100-1000 kg are mainly used. In low Earth orbit (convenient for ionospheric studies) micro-and nanosatellites have dominated in the recent years. The paper formulates scientific objectives for the future micro-and nanosatellites in various orbits, as well as approaches to the assessment of their effectiveness. The paper discusses the common problems of this development field and their possible solutions, both as a whole and for the Russian space program in particular.

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“…Using the data from the ISIS and VELA 4B satellites, Heikkila and Winningham (1971) have shown that plasma at different altitudes within the cusp have similar characteristics. The shape, size, location and populating mechanisms of the Cusps have also been revealed using the data from other satellites such as HEOS, Hawkeye, Interball and POLAR (Hedgecock and Thomas, 1975;Haerendel et al, 1978;Farrell and Van Allen, 1990;Zelenyi et al, 1997;Chen et al, 1997;Russell, 2000;Dunlop et al, 2000;Merka et al, 2000;Wing et al, 2001;Sandahl, 2002).…”

Section: Introductionmentioning

confidence: 98%

Cluster observations of a structured magnetospheric cusp

et al. 2006

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Abstract. On 18 April 2002 the Cluster spacecraft crossed through the northern outer magnetospheric cusp region during 16:25-17:55 UT when the solar wind dynamic pressure was rather low (<2 nPa) and IMF B z was more negative than IMF B y . The Cluster data from the FGM, CIS, PEACE, EFW, WHISPER and STAFF instruments reveal that the cusp is structured with three anti-sunward ion flow events of durations ≈1.5, 17.5 and 19.0 min, with bulk plasma flow roughly parallel to the magnetopause toward north. The ion and electron densities within the events are much greater than those outside. The zonal electric field in the ion flow events turns eastward as expected from V ×B effect. The sharp inward boundaries of the ion flow events cross the four spacecraft in one time sequence, and the outward boundaries of the events cross the spacecraft in the reverse time sequence. The observations studied using magnetosphere and magnetopause models suggest that the structured cusp is a temporal feature that arises due to three inward and outward movements of the magnetopause by about 1.5 R E so that Cluster, while crossing through the cusp, happened to be in the magnetosheath (ion flow event) and cusp alternately. The magnetopause moved due to the changes in the solar wind dynamic pressure by up to 100%.

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INTERBALL—Dual probe and dual mission

Cited by 15 publications

References 4 publications

Four point measurements of electrons using PEACE in the high-altitude cusp

Four point measurements of electrons using PEACE in the high-altitude cusp

Small Satellites for Scientific Research

Cluster observations of a structured magnetospheric cusp

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