Satellite temperature measurement in LEO and improvement method of temperature sensors calibration based on measured data
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F19%3A00332354" target="_blank" >RIV/68407700:21230/19:00332354 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1002/asna.201913671" target="_blank" >https://doi.org/10.1002/asna.201913671</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/asna.201913671" target="_blank" >10.1002/asna.201913671</a>
Alternative languages
Result language
angličtina
Original language name
Satellite temperature measurement in LEO and improvement method of temperature sensors calibration based on measured data
Original language description
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 analogue and a digital output, which are necessary for the accurate measurements calibrations under a vacuum condition or for applying post-processing corrections. This document describes the way of calibration in a thermal vacuum chamber and its improvement in orbit. In addition, the paper will discusses the use of a RTD 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 minimise 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 temperatures 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 is better than, 0.15 °C
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10308 - Astronomy (including astrophysics,space science)
Result continuities
Project
<a href="/en/project/EF16_019%2F0000778" target="_blank" >EF16_019/0000778: Center for advanced applied science</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Astronomische Nachrichten
ISSN
0004-6337
e-ISSN
1521-3994
Volume of the periodical
340
Issue of the periodical within the volume
7
Country of publishing house
DE - GERMANY
Number of pages
6
Pages from-to
652-657
UT code for WoS article
000491150100001
EID of the result in the Scopus database
2-s2.0-85074018494