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11 results on '"Säntti, T."'

1. Aalto-1, multi-payload CubeSat: design, integration and launch

Author

Praks, J., Mughal, M. Rizwan, Vainio, R., Janhunen, P., Envall, J., Oleynik, P., Näsilä, A., Leppinen, H., Niemelä, P., Slavinskis, A., Gieseler, J., Toivanen, P., Tikka, T., Peltola, T., Bosser, A., Schwarzkopf, G., Jovanovic, N., Riwanto, B., Kestilä, A., Punkkinen, A., Punkkinen, R., Hedman, H. -P., Säntti, T., Lill, J. -O., Slotte, J. M. K., Kettunen, H., and Virtanen, A.

Subjects
Physics - Space Physics, Astrophysics - Instrumentation and Methods for Astrophysics
Abstract

The design, integration, testing, and launch of the first Finnish satellite Aalto-1 is briefly presented in this paper. Aalto-1, a three-unit CubeSat, launched into Sun-synchronous polar orbit at an altitude of approximately 500 km, is operational since June 2017. It carries three experimental payloads: Aalto Spectral Imager (AaSI), Radiation Monitor (RADMON), and Electrostatic Plasma Brake (EPB). AaSI is a hyperspectral imager in visible and near-infrared (NIR) wavelength bands, RADMON is an energetic particle detector and EPB is a de-orbiting technology demonstration payload. The platform was designed to accommodate multiple payloads while ensuring sufficient data, power, radio, mechanical and electrical interfaces. The design strategy of platform and payload subsystems consists of in-house development and commercial subsystems. The CubeSat Assembly, Integration & Test (AIT) followed Flatsat -- Engineering-Qualification Model (EQM) -- Flight Model (FM) model philosophy for qualification and acceptance. The paper briefly describes the design approach of platform and payload subsystems, their integration and test campaigns, and spacecraft launch. The paper also describes the ground segment & services that were developed by the Aalto-1 team., Comment: 41 pages, 16 figures, accepted to Acta Astronautica, 2021

Published
2021
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2. FORESAIL-1 cubesat mission to measure radiation belt losses and demonstrate de-orbiting

Author

FORESAIL collaboration, Palmroth, M., Praks, J., Vainio, R., Janhunen, P., Kilpua, E. K. J., Ganushkina, N. Yu., Afanasiev, A., Ala-Lahti, M., Alho, A., Asikainen, T., Asvestari, E., Battarbee, M., Binios, A., Bosser, A., Brito, T., Envall, J., Ganse, U., George, H., Gieseler, J., Good, S., Grandin, M., Haslam, S., Hedman, H. -P., Hietala, H., Jovanovic, N., Kakakhel, S., Kalliokoski, M., Kettunen, V. V., Koskela, T., Lumme, E., Meskanen, M., Morosan, D., Mughal, M. Rizwan, Niemelä, P., Nyman, S., Oleynik, P., Osmane, A., Palmerio, E., Pfau-Kempf, Y., Peltonen, J., Plosila, J., Polkko, J., Poluianov, S., Pomoell, J., Price, D., Punkkinen, A., Punkkinen, R., Riwanto, B., Salomaa, L., Slavinskis, A., Säntti, T., Tammi, J., Tenhunen, H., Toivanen, P., Tuominen, J., Turc, L., Valtonen, E., Virtanen, P., and Westerlund, T.

Subjects
Physics - Space Physics
Abstract

Today, the near-Earth space is facing a paradigm change as the number of new spacecraft is literally sky-rocketing. Increasing numbers of small satellites threaten the sustainable use of space, as without removal, space debris will eventually make certain critical orbits unusable. A central factor affecting small spacecraft health and leading to debris is the radiation environment, which is unpredictable due to an incomplete understanding of the near-Earth radiation environment itself and its variability driven by the solar wind and outer magnetosphere. This paper presents the FORESAIL-1 nanosatellite mission, having two scientific and one technological objectives. The first scientific objective is to measure the energy and flux of energetic particle loss to the atmosphere with a representative energy and pitch angle resolution over a wide range of magnetic local times. To pave the way to novel model - in situ data comparisons, we also show preliminary results on precipitating electron fluxes obtained with the new global hybrid-Vlasov simulation Vlasiator. The second scientific objective of the FORESAIL-1 mission is to measure energetic neutral atoms (ENAs) of solar origin. The solar ENA flux has the potential to contribute importantly to the knowledge of solar eruption energy budget estimations. The technological objective is to demonstrate a satellite de-orbiting technology, and for the first time, make an orbit manoeuvre with a propellantless nanosatellite. FORESAIL-1 will demonstrate the potential for nanosatellites to make important scientific contributions as well as promote the sustainable utilisation of space by using a cost-efficient de-orbiting technology., Comment: 26 pages, 7 figures, 5 tables Published online in JGR: Space Physics on 21 May 2019

Published
2019
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5. Aalto-1, multi-payload CubeSat: Design, integration and launch

Author

Praks, J., primary, Mughal, M. Rizwan, additional, Vainio, R., additional, Janhunen, P., additional, Envall, J., additional, Oleynik, P., additional, Näsilä, A., additional, Leppinen, H., additional, Niemelä, P., additional, Slavinskis, A., additional, Gieseler, J., additional, Toivanen, P., additional, Tikka, T., additional, Peltola, T., additional, Bosser, A., additional, Schwarzkopf, G., additional, Jovanovic, N., additional, Riwanto, B., additional, Kestilä, A., additional, Punkkinen, A., additional, Punkkinen, R., additional, Hedman, H.-P., additional, Säntti, T., additional, Lill, J.-O., additional, Slotte, J.M.K., additional, Kettunen, H., additional, and Virtanen, A., additional

Published
2021
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8. FORESAIL‐1 CubeSat mission to measure radiation belt losses and demonstrate deorbiting

Author

Palmroth, M. (M.), Praks, J. (J.), Vainio, R. (R.), Janhunen, P. (P.), Kilpua, E. K. (E. K. J.), Afanasiev, A. (A.), Ala-Lahti, M. (M.), Alho, A. (A.), Asikainen, T. (T.), Asvestari, E. (E.), Battarbee, M. (M.), Binios, A. (A.), Bosser, A. (A.), Brito, T. (T.), Dubart, M. (M.), Envall, J. (J.), Ganse, U. (U.), Ganushkina, N. Y. (N. Yu.), George, H. (H.), Gieseler, J. (J.), Good, S. (S.), Grandin, M. (M.), Haslam, S. (S.), Hedman, H.-P. (H.-P.), Hietala, H. (H.), Jovanovic, N. (N.), Kakakhel, S. (S.), Kalliokoski, M. (M.), Kettunen, V. V. (V. V.), Koskela, T. (T.), Lumme, E. (E.), Meskanen, M. (M.), Morosan, D. (D.), Rizwan Mughal, M. (M.), Niemelä, P. (P.), Nyman, S. (S.), Oleynik, P. (P.), Osmane, A. (A.), Palmerio, E. (E.), Peltonen, J. (J.), Pfau-Kempf, Y. (Y.), Plosila, J. (J.), Polkko, J. (J.), Poluianov, S. (S.), Pomoell, J. (J.), Price, D. (D.), Punkkinen, A. (A.), Punkkinen, R. (R.), Riwanto, B. (B.), Salomaa, L. (L.), Slavinskis, A. (A.), Säntti, T. (T.), Tammi, J. (J.), Tenhunen, H. (H.), Toivanen, P. (P.), Tuominen, J. (J.), Turc, L. (L.), Valtonen, E. (E.), Virtanen, P. (P.), Westerlund, T. (T.), Palmroth, M. (M.), Praks, J. (J.), Vainio, R. (R.), Janhunen, P. (P.), Kilpua, E. K. (E. K. J.), Afanasiev, A. (A.), Ala-Lahti, M. (M.), Alho, A. (A.), Asikainen, T. (T.), Asvestari, E. (E.), Battarbee, M. (M.), Binios, A. (A.), Bosser, A. (A.), Brito, T. (T.), Dubart, M. (M.), Envall, J. (J.), Ganse, U. (U.), Ganushkina, N. Y. (N. Yu.), George, H. (H.), Gieseler, J. (J.), Good, S. (S.), Grandin, M. (M.), Haslam, S. (S.), Hedman, H.-P. (H.-P.), Hietala, H. (H.), Jovanovic, N. (N.), Kakakhel, S. (S.), Kalliokoski, M. (M.), Kettunen, V. V. (V. V.), Koskela, T. (T.), Lumme, E. (E.), Meskanen, M. (M.), Morosan, D. (D.), Rizwan Mughal, M. (M.), Niemelä, P. (P.), Nyman, S. (S.), Oleynik, P. (P.), Osmane, A. (A.), Palmerio, E. (E.), Peltonen, J. (J.), Pfau-Kempf, Y. (Y.), Plosila, J. (J.), Polkko, J. (J.), Poluianov, S. (S.), Pomoell, J. (J.), Price, D. (D.), Punkkinen, A. (A.), Punkkinen, R. (R.), Riwanto, B. (B.), Salomaa, L. (L.), Slavinskis, A. (A.), Säntti, T. (T.), Tammi, J. (J.), Tenhunen, H. (H.), Toivanen, P. (P.), Tuominen, J. (J.), Turc, L. (L.), Valtonen, E. (E.), Virtanen, P. (P.), and Westerlund, T. (T.)

Abstract

Today, the near‐Earth space is facing a paradigm change as the number of new spacecraft is literally skyrocketing. Increasing numbers of small satellites threaten the sustainable use of space, as without removal, space debris will eventually make certain critical orbits unusable. A central factor affecting small spacecraft health and leading to debris is the radiation environment, which is unpredictable due to an incomplete understanding of the near‐Earth radiation environment itself and its variability driven by the solar wind and outer magnetosphere. This paper presents the FORESAIL‐1 nanosatellite mission, having two scientific and one technological objectives. The first scientific objective is to measure the energy and flux of energetic particle loss to the atmosphere with a representative energy and pitch angle resolution over a wide range of magnetic local times. To pave the way to novel model‐in situ data comparisons, we also show preliminary results on precipitating electron fluxes obtained with the new global hybrid‐Vlasov simulation Vlasiator. The second scientific objective of the FORESAIL‐1 mission is to measure energetic neutral atoms of solar origin. The solar energetic neutral atom flux has the potential to contribute importantly to the knowledge of solar eruption energy budget estimations. The technological objective is to demonstrate a satellite deorbiting technology, and for the first time, make an orbit maneuver with a propellantless nanosatellite. FORESAIL‐1 will demonstrate the potential for nanosatellites to make important scientific contributions as well as promote the sustainable utilization of space by using a cost‐efficient deorbiting technology.

Published
2019

9. FORESAIL‐1 CubeSat Mission to Measure Radiation Belt Losses and Demonstrate Deorbiting

Author

Palmroth, M., primary, Praks, J., additional, Vainio, R., additional, Janhunen, P., additional, Kilpua, E. K. J., additional, Afanasiev, A., additional, Ala‐Lahti, M., additional, Alho, A., additional, Asikainen, T., additional, Asvestari, E., additional, Battarbee, M., additional, Binios, A., additional, Bosser, A., additional, Brito, T., additional, Dubart, M., additional, Envall, J., additional, Ganse, U., additional, Ganushkina, N. Yu., additional, George, H., additional, Gieseler, J., additional, Good, S., additional, Grandin, M., additional, Haslam, S., additional, Hedman, H.‐P., additional, Hietala, H., additional, Jovanovic, N., additional, Kakakhel, S., additional, Kalliokoski, M., additional, Kettunen, V. V., additional, Koskela, T., additional, Lumme, E., additional, Meskanen, M., additional, Morosan, D., additional, Mughal, M. Rizwan, additional, Niemelä, P., additional, Nyman, S., additional, Oleynik, P., additional, Osmane, A., additional, Palmerio, E., additional, Peltonen, J., additional, Pfau‐Kempf, Y., additional, Plosila, J., additional, Polkko, J., additional, Poluianov, S., additional, Pomoell, J., additional, Price, D., additional, Punkkinen, A., additional, Punkkinen, R., additional, Riwanto, B., additional, Salomaa, L., additional, Slavinskis, A., additional, Säntti, T., additional, Tammi, J., additional, Tenhunen, H., additional, Toivanen, P., additional, Tuominen, J., additional, Turc, L., additional, Valtonen, E., additional, Virtanen, P., additional, and Westerlund, T., additional

Published
2019
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