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Open AccessArticle

3Cat-3/MOTS Nanosatellite Mission for Optical Multispectral and GNSS-R Earth Observation: Concept and Analysis

1
Teoria del Senyal i Comunicació (TSC), Universitat Politècnica de Catalunya (UPC), 08034 Barcelona, Spain
2
Institut Cartogràfic i Geològic de Catalunya (ICGC), Parc de Montjuïc, 08038 Barcelona, Spain
*
Author to whom correspondence should be addressed.
Sensors 2018, 18(1), 140; https://doi.org/10.3390/s18010140
Received: 13 December 2017 / Revised: 27 December 2017 / Accepted: 3 January 2018 / Published: 6 January 2018
The 3Cat-3/MOTS (3: Cube, Cat: Catalunya, 3: 3rd CubeSat mission/Missió Observació Terra Satèl·lit) mission is a joint initiative between the Institut Cartogràfic i Geològic de Catalunya (ICGC) and the Universitat Politècnica de Catalunya-BarcelonaTech (UPC) to foster innovative Earth Observation (EO) techniques based on data fusion of Global Navigation Satellite Systems Reflectometry (GNSS-R) and optical payloads. It is based on a 6U CubeSat platform, roughly a 10 cm × 20 cm × 30 cm parallelepiped. Since 2012, there has been a fast growing trend to use small satellites, especially nanosatellites, and in particular those following the CubeSat form factor. Small satellites possess intrinsic advantages over larger platforms in terms of cost, flexibility, and scalability, and may also enable constellations, trains, federations, or fractionated satellites or payloads based on a large number of individual satellites at an affordable cost. This work summarizes the mission analysis of 3Cat-3/MOTS, including its payload results, power budget (PB), thermal budget (TB), and data budget (DB). This mission analysis is addressed to transform EO data into territorial climate variables (soil moisture and land cover change) at the best possible achievable spatio-temporal resolution. View Full-Text
Keywords: GNSS-R; soil moisture; downscaling; mission analysis; earth observation GNSS-R; soil moisture; downscaling; mission analysis; earth observation
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Castellví, J.; Camps, A.; Corbera, J.; Alamús, R. 3Cat-3/MOTS Nanosatellite Mission for Optical Multispectral and GNSS-R Earth Observation: Concept and Analysis. Sensors 2018, 18, 140.

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