Miniaturized X-ray telescope for VZLUSAT-1 nanosatellite with Timepix detector

Báča, Tomáš; Platkevič, Michal; Jakůbek, J.; Inneman, A.; Stehlikova, Veronika; Urban, M.; Nentvich, O.; Błażek, M.; McEntaffer, Randall L.; Dániel, Vladimír

doi:10.1088/1748-0221/11/10/c10007

Cited by 45 publications

(26 citation statements)

References 7 publications

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“…In addition, Exploration Flight Test 1 (EFT-1), the first flight of the Orion Multi-Purpose Crew Vehicle (MPCV) on a two orbit, 4.5 hour trip on the 5th December 2014 took Medipix data the farthest from Earth to date at ∼5910 km (Gaza et al, 2017). Most recently, on the 23rd June 2017 the cubesat VZLUSAT-1 (altitude 510km, Dániel et al, 2016, Urban et al, 2017 carried a miniaturised x-ray telescope, that uses Timepix detectors (Baca et al, 2016), into orbit for astrophysical, space weather studies, and terrestrial X-ray monitoring applications (see Pina et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

First results from the LUCID-Timepix spacecraft payload onboard the TechDemoSat-1 satellite in Low Earth Orbit

Furnell

Shenoy

Fox

et al. 2019

Advances in Space Research

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The Langton Ultimate Cosmic ray Intensity Detector (LUCID) is a payload onboard the satellite TechDemoSat-1, used to study the radiation environment in Low Earth Orbit (∼635km). LUCID operated from 2014 to 2017, collecting over 2.1 million frames of radiation data from its five Timepix detectors on board. LUCID is one of the first uses of the Timepix detector technology in open space, with the data providing useful insight into the performance of this technology in new environments. It provides high-sensitivity imaging measurements of the mixed radiation field, with a wide dynamic range in terms of spectral response, particle type and direction. The data has been analysed using computing resources provided by GridPP, with a new machine learning algorithm that uses the Tensorflow framework. This algorithm provides a new approach to processing Medipix data, using a training set of human labelled tracks, providing greater particle classification accuracy than other algorithms. For managing the LUCID data, we have developed an online platform called Timepix Analysis Platform at School (TAPAS). This provides a swift and simple way for users to analyse data that they collect using Timepix detectors from both LUCID and other experiments. We also present some possible future uses of the LUCID data and Medipix detectors in space.

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Section: Introductionmentioning

confidence: 99%

First results from the LUCID-Timepix spacecraft payload onboard the TechDemoSat-1 satellite in Low Earth Orbit

Furnell

Shenoy

Fox

et al. 2019

Advances in Space Research

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“…The goal of this technological CubeSat is to verify new technologies in space. Therefore, a number of scientific and commercial experiments are on board such as an X-ray telescope (Baca et al 2016;Dániel et al 2016;Pina et al 2015) including a corresponding verification of materials and technologies (Daniel et al 2016;Vertat et al 2017b).…”

Section: Vzlusat-1 Nanosatellitementioning

confidence: 99%

Outgassing monitor on VZLUSAT‐1: Preliminary results

et al. 2018

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The first results of an outgassing monitor on board of the first Czech CubeSat launched into Earth's orbit are presented in this paper. VZLUSAT‐1 was launched in June 2017 as a technological satellite and is still operating in the LEO orbit. A newly developed carbon‐fiber‐reinforced plastic, which can be used as a radiation shield, is one of the tested items on board. The amount of outgassing is one of its critical properties for space applications. Water vapor is the largest part of matter outgassed from mounted composites and other components. Thus a novel monitoring device based on several types of humidity sensors was proposed to be used on board of the VZLUSAT‐1 nanosatellite as one of the payloads. This paper presents the responses of these sensors and discusses their applicability in the space environment.

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“…This nanosatellite was launched as a part of the international mission QB50 (Muylaert et al ) by the PSLV C38 launch vehicle on June 23, 2017. It orbits on a circular polar low earth orbit at altitude 500 km with several experiments on board, for instance, a Miniaturized X‐Ray telescope (Baca et al ; Baca et al ), payloads for testing of a new composite material (Nentvich et al ; Stehlikova et al ; Urban et al ) and many more. Communication with VZLUSAT‐1 is provided by the ground station in Pilsen (Vertat et al ), which is capable of operating in software‐controlled autonomous and software‐assisted semiautonomous modes (Vertat et al ).…”

Section: Introductionmentioning

confidence: 99%

Satellite temperature measurement in LEO and improvement method of temperature sensors calibration based on the measured data

2019

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This article describes the temperature measurement and its calibration on board of the nanosatellite CubeSat class VZLUSAT-1. There are several thermometers, installed with an analog and a digital output, which are necessary for the accurate measurements calibrations under a vacuum condition or for applying postprocessing corrections. This document describes the way of calibration in a thermal vacuum chamber and its improvement in orbit. In addition, this article will discuss the use of a resistance temperature detector platinum sensors Pt1000 and a digital sensors HYT271 as the reference. A correction variable based on HYT271 compensates a nonlinearity of Pt1000 as well as minimizes the influence of change in a measuring current due to temperature changes. The current correction variable is a function of temperature and nanosatellite's position in the orbit. The measured temperatures are below −70 • C in the Earth's shadow and greater than +80 • C after irradiation by the Sun. Orbital temperature calibration is performed in two steps. The raw temperature data obtained during the orbital measurement are being used for further improvement. The measurement cycle consists of the electronics calibration, temperature measurement, and temperature calibration. After applying the temperature correction process, the final accuracy becomes better than ±0.15 • C.

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Miniaturized X-ray telescope for VZLUSAT-1 nanosatellite with Timepix detector

Cited by 45 publications

References 7 publications

First results from the LUCID-Timepix spacecraft payload onboard the TechDemoSat-1 satellite in Low Earth Orbit

First results from the LUCID-Timepix spacecraft payload onboard the TechDemoSat-1 satellite in Low Earth Orbit

Outgassing monitor on VZLUSAT‐1: Preliminary results

Satellite temperature measurement in LEO and improvement method of temperature sensors calibration based on the measured data

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