The Experts below are selected from a list of 23274 Experts worldwide ranked by ideXlab platform
J Peltonen - One of the best experts on this subject based on the ideXlab platform.
-
Radiation Monitor radmon aboard aalto 1 cubesat first results
Advances in Space Research, 2020Co-Authors: Jan Gieseler, Philipp Oleynik, Heli Hietala, Rami Vainio, Hannu Pekka Hedman, J Peltonen, Arttu Punkkinen, Risto Punkkinen, Tero Santti, Edward HaeggstromAbstract:Abstract The Radiation Monitor (RADMON) on-board Aalto-1 CubeSat is an energetic particle detector that fulfills the requirements of small size, low power consumption and low budget. Aalto-1 was launched on 23 June 2017 to a sun-synchronous polar orbit with 97.4° inclination and an average altitude of somewhat above 500 km. RADMON has been measuring integral particle intensities from October 2017 to May 2018 with electron energies starting at low-MeV and protons from 10 MeV upwards. In this paper, we present first electron and proton intensity maps obtained over the mission period. In addition, the response of RADMON measurements to magnetospheric dynamics are analyzed, and the electron observations are compared with corresponding measurements by the PROBA-V/EPT mission. Finally, we describe the RADMON data set, which is made publicly available.
-
calibration of radmon Radiation Monitor onboard aalto 1 cubesat
Advances in Space Research, 2020Co-Authors: Philipp Oleynik, Jan Gieseler, Heli Hietala, Rami Vainio, Hannu Pekka Hedman, Arttu Punkkinen, Edward Haeggstrom, Oleksiy Dudnik, Petri Niemela, J PeltonenAbstract:Abstract RADMON is a small Radiation Monitor designed and assembled by students of University of Turku and University of Helsinki. It is flown on-board Aalto-1, a 3-unit CubeSat in low Earth orbit at about 500 km altitude. The detector unit of the instrument consists of two detectors, a Si solid-state detector and a CsI(Tl) scintillator, and utilizes the ΔE-E technique to determine the total energy and species of each particle hitting the detector. We present the results of the on-ground and in-flight calibration campaigns of the instrument, as well as the characterization of its response through extensive simulations within the Geant4 framework. The overall energy calibration margin achieved is about 5%. The full instrument response to protons and electrons is presented and the issue of proton contamination of the electron channels is quantified and discussed.
Edward Haeggstrom - One of the best experts on this subject based on the ideXlab platform.
-
Radiation Monitor radmon aboard aalto 1 cubesat first results
Advances in Space Research, 2020Co-Authors: Jan Gieseler, Philipp Oleynik, Heli Hietala, Rami Vainio, Hannu Pekka Hedman, J Peltonen, Arttu Punkkinen, Risto Punkkinen, Tero Santti, Edward HaeggstromAbstract:Abstract The Radiation Monitor (RADMON) on-board Aalto-1 CubeSat is an energetic particle detector that fulfills the requirements of small size, low power consumption and low budget. Aalto-1 was launched on 23 June 2017 to a sun-synchronous polar orbit with 97.4° inclination and an average altitude of somewhat above 500 km. RADMON has been measuring integral particle intensities from October 2017 to May 2018 with electron energies starting at low-MeV and protons from 10 MeV upwards. In this paper, we present first electron and proton intensity maps obtained over the mission period. In addition, the response of RADMON measurements to magnetospheric dynamics are analyzed, and the electron observations are compared with corresponding measurements by the PROBA-V/EPT mission. Finally, we describe the RADMON data set, which is made publicly available.
-
calibration of radmon Radiation Monitor onboard aalto 1 cubesat
Advances in Space Research, 2020Co-Authors: Philipp Oleynik, Jan Gieseler, Heli Hietala, Rami Vainio, Hannu Pekka Hedman, Arttu Punkkinen, Edward Haeggstrom, Oleksiy Dudnik, Petri Niemela, J PeltonenAbstract:Abstract RADMON is a small Radiation Monitor designed and assembled by students of University of Turku and University of Helsinki. It is flown on-board Aalto-1, a 3-unit CubeSat in low Earth orbit at about 500 km altitude. The detector unit of the instrument consists of two detectors, a Si solid-state detector and a CsI(Tl) scintillator, and utilizes the ΔE-E technique to determine the total energy and species of each particle hitting the detector. We present the results of the on-ground and in-flight calibration campaigns of the instrument, as well as the characterization of its response through extensive simulations within the Geant4 framework. The overall energy calibration margin achieved is about 5%. The full instrument response to protons and electrons is presented and the issue of proton contamination of the electron channels is quantified and discussed.
Peltonen Juhani - One of the best experts on this subject based on the ideXlab platform.
-
Calibration of RADMON Radiation Monitor onboard Aalto-1 CubeSat
'Elsevier BV', 2021Co-Authors: Oleynik Philipp, Vainio Rami, Punkkinen Arttu, Dudnik Oleksiy, Gieseler Jan, Hedman, Hannu Pekka, Hietala Heli, Hæggström Edward, Niemelä Petri, Peltonen JuhaniAbstract:RADMON is a small Radiation Monitor designed and assembled by students of University of Turku and University of Helsinki. It is flown on-board Aalto-1, a 3-unit CubeSat in low Earth orbit at about 500 km altitude. The detector unit of the instrument consists of two detectors, a Si solid-state detector and a CsI(Tl) scintillator, and utilizes the ΔE-E technique to determine the total energy and species of each particle hitting the detector. We present the results of the on-ground and in-flight calibration campaigns of the instrument, as well as the characterization of its response through extensive simulations within the Geant4 framework. The overall energy calibration margin achieved is about 5%. The full instrument response to protons and electrons is presented and the issue of proton contamination of the electron channels is quantified and discussed.Peer reviewe
-
Radiation Monitor RADMON aboard Aalto-1 CubeSat: First results
'Elsevier BV', 2019Co-Authors: Gieseler Jan, Oleynik Philipp, Vainio Rami, Punkkinen Arttu, Hietala Heli, Peltonen Juhani, Hedman Hannu-pekka, Punkkinen Risto, Säntti Tero, Hæggström EdwardAbstract:The Radiation Monitor (RADMON) on-board Aalto-1 CubeSat is an energetic particle detector that fulfills the requirements of small size, low power consumption and low budget. Aalto-1 was launched on 23 June 2017 to a sun-synchronous polar orbit with 97.4{\deg} inclination and an average altitude of somewhat above 500 km. RADMON has been measuring integral particle intensities from October 2017 to May 2018 with electron energies starting at low-MeV and protons from 10 MeV upwards. In this paper, we present first electron and proton intensity maps obtained over the mission period. In addition, the response of RADMON measurements to magnetospheric dynamics are analyzed, and the electron observations are compared with corresponding measurements by the PROBA-V/EPT mission. Finally, the we describe the RADMON data set, which is made publicly available.Comment: 27 pages, 15 figures, 1 table. Accepted for publication in Advances in Space Researc
Hæggström Edward - One of the best experts on this subject based on the ideXlab platform.
-
Calibration of RADMON Radiation Monitor onboard Aalto-1 CubeSat
'Elsevier BV', 2021Co-Authors: Oleynik Philipp, Vainio Rami, Punkkinen Arttu, Dudnik Oleksiy, Gieseler Jan, Hedman, Hannu Pekka, Hietala Heli, Hæggström Edward, Niemelä Petri, Peltonen JuhaniAbstract:RADMON is a small Radiation Monitor designed and assembled by students of University of Turku and University of Helsinki. It is flown on-board Aalto-1, a 3-unit CubeSat in low Earth orbit at about 500 km altitude. The detector unit of the instrument consists of two detectors, a Si solid-state detector and a CsI(Tl) scintillator, and utilizes the ΔE-E technique to determine the total energy and species of each particle hitting the detector. We present the results of the on-ground and in-flight calibration campaigns of the instrument, as well as the characterization of its response through extensive simulations within the Geant4 framework. The overall energy calibration margin achieved is about 5%. The full instrument response to protons and electrons is presented and the issue of proton contamination of the electron channels is quantified and discussed.Peer reviewe
-
Radiation Monitor RADMON aboard Aalto-1 CubeSat: First results
'Elsevier BV', 2019Co-Authors: Gieseler Jan, Oleynik Philipp, Vainio Rami, Punkkinen Arttu, Hietala Heli, Peltonen Juhani, Hedman Hannu-pekka, Punkkinen Risto, Säntti Tero, Hæggström EdwardAbstract:The Radiation Monitor (RADMON) on-board Aalto-1 CubeSat is an energetic particle detector that fulfills the requirements of small size, low power consumption and low budget. Aalto-1 was launched on 23 June 2017 to a sun-synchronous polar orbit with 97.4{\deg} inclination and an average altitude of somewhat above 500 km. RADMON has been measuring integral particle intensities from October 2017 to May 2018 with electron energies starting at low-MeV and protons from 10 MeV upwards. In this paper, we present first electron and proton intensity maps obtained over the mission period. In addition, the response of RADMON measurements to magnetospheric dynamics are analyzed, and the electron observations are compared with corresponding measurements by the PROBA-V/EPT mission. Finally, the we describe the RADMON data set, which is made publicly available.Comment: 27 pages, 15 figures, 1 table. Accepted for publication in Advances in Space Researc
Slavinskis A. - One of the best experts on this subject based on the ideXlab platform.
-
Aalto-1, multi-payload CubeSat: In-orbit results and lessons learned
'Elsevier BV', 2023Co-Authors: Mughal M. Rizwan, Praks Jaan, Vainio R., Janhunen P., Envall J., Näsilä Antti, Oleynik P., Niemelä P., Slavinskis A., Gieseler J.Abstract:The in-orbit results and lessons learned of the first Finnish satellite Aalto-1 are briefly presented in this paper. Aalto-1, a three-unit CubeSat which was launched in June 2017, performed Aalto Spectral Imager (AaSI), Radiation Monitor (RADMON) and Electrostatic Plasma Brake (EPB) missions. The satellite partly fulfilled its mission objectives and allowed to either perform or attempt the experiments. Although attitude control was partially functional, AaSI and RADMON were able to acquire valuable measurements. EPB was successfully commissioned but the tether deployment was not successful. In this paper, we present the intended mission, in-orbit experience in operating and troubleshooting the satellite, an overview of experiment results, as well as lessons learned that will be used in future missions.Peer reviewe
-
Aalto-1, multi-payload CubeSat: design, integration and launch
'Elsevier BV', 2021Co-Authors: Praks J., Mughal M. Rizwan, Vainio R., Janhunen P., Envall J., Oleynik P., Niemelä P., Näsilä A., Leppinen H., Slavinskis A.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, 202
