In-Orbit Validation of the FMPL-2 Instrument—The GNSS-R and L-Band Microwave Radiometer Payload of the FSSCat Mission
The Flexible Microwave Payload-2 is the GNSS-R and L-band Microwave Radiometer Payload on board <math display="inline"><semantics><msup><mrow></mrow><mn>3</mn></msup></semantics></math> Cat-5/A, one of the two 6-unit CubeSats of t...
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ftdoajarticles:oai:doaj.org/article:2e4b924e48bf44d09139632eb12c5340 2023-05-15T18:17:44+02:00 In-Orbit Validation of the FMPL-2 Instrument—The GNSS-R and L-Band Microwave Radiometer Payload of the FSSCat Mission Joan Francesc Munoz-Martin Lara Fernandez Adrian Perez Joan Adrià Ruiz-de-Azua Hyuk Park Adriano Camps Bernardo Carnicero Domínguez Massimiliano Pastena 2020-12-01T00:00:00Z https://doi.org/10.3390/rs13010121 https://doaj.org/article/2e4b924e48bf44d09139632eb12c5340 EN eng MDPI AG https://www.mdpi.com/2072-4292/13/1/121 https://doaj.org/toc/2072-4292 doi:10.3390/rs13010121 2072-4292 https://doaj.org/article/2e4b924e48bf44d09139632eb12c5340 Remote Sensing, Vol 13, Iss 121, p 121 (2020) GNSS-R microwave radiometry L-band CubeSat sea ice soil moisture Science Q article 2020 ftdoajarticles https://doi.org/10.3390/rs13010121 2022-12-30T19:58:39Z The Flexible Microwave Payload-2 is the GNSS-R and L-band Microwave Radiometer Payload on board <math display="inline"><semantics><msup><mrow></mrow><mn>3</mn></msup></semantics></math> Cat-5/A, one of the two 6-unit CubeSats of the FSSCat mission, which were successfully launched on 3 September 2020 on Vega flight VV16. The instrument occupies nearly a single unit of the CubeSat, and its goal is to provide sea-ice extension and thickness over the poles, and soil moisture maps at low-moderate resolution over land, which will be downscaled using data from Cosine Hyperscout-2 on board <math display="inline"><semantics><msup><mrow></mrow><mn>3</mn></msup></semantics></math> Cat-5/B. The spacecrafts are in a 97.5 <math display="inline"><semantics><msup><mrow></mrow><mo>°</mo></msup></semantics></math> inclination Sun-synchronous orbit, and both the reflectometer and the radiometer have been successfully executed and validated over both the North and the South poles. This manuscript presents the results and validation of the first data sets collected by the instrument during the first two months of the mission. The results of the validation are showing a radiometric accuracy better than 2 K, and a sensitivity lower than the Kelvin. For the reflectometer, the results are showing that the sea-ice transition can be estimated even at short integration times (40 ms). The presented results shows the potential for Earth Observation missions based on CubeSats, which temporal and spatial resolution can be further increased by means of CubeSat constellations. Article in Journal/Newspaper Sea ice Directory of Open Access Journals: DOAJ Articles Remote Sensing 13 1 121 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
GNSS-R microwave radiometry L-band CubeSat sea ice soil moisture Science Q |
spellingShingle |
GNSS-R microwave radiometry L-band CubeSat sea ice soil moisture Science Q Joan Francesc Munoz-Martin Lara Fernandez Adrian Perez Joan Adrià Ruiz-de-Azua Hyuk Park Adriano Camps Bernardo Carnicero Domínguez Massimiliano Pastena In-Orbit Validation of the FMPL-2 Instrument—The GNSS-R and L-Band Microwave Radiometer Payload of the FSSCat Mission |
topic_facet |
GNSS-R microwave radiometry L-band CubeSat sea ice soil moisture Science Q |
description |
The Flexible Microwave Payload-2 is the GNSS-R and L-band Microwave Radiometer Payload on board <math display="inline"><semantics><msup><mrow></mrow><mn>3</mn></msup></semantics></math> Cat-5/A, one of the two 6-unit CubeSats of the FSSCat mission, which were successfully launched on 3 September 2020 on Vega flight VV16. The instrument occupies nearly a single unit of the CubeSat, and its goal is to provide sea-ice extension and thickness over the poles, and soil moisture maps at low-moderate resolution over land, which will be downscaled using data from Cosine Hyperscout-2 on board <math display="inline"><semantics><msup><mrow></mrow><mn>3</mn></msup></semantics></math> Cat-5/B. The spacecrafts are in a 97.5 <math display="inline"><semantics><msup><mrow></mrow><mo>°</mo></msup></semantics></math> inclination Sun-synchronous orbit, and both the reflectometer and the radiometer have been successfully executed and validated over both the North and the South poles. This manuscript presents the results and validation of the first data sets collected by the instrument during the first two months of the mission. The results of the validation are showing a radiometric accuracy better than 2 K, and a sensitivity lower than the Kelvin. For the reflectometer, the results are showing that the sea-ice transition can be estimated even at short integration times (40 ms). The presented results shows the potential for Earth Observation missions based on CubeSats, which temporal and spatial resolution can be further increased by means of CubeSat constellations. |
format |
Article in Journal/Newspaper |
author |
Joan Francesc Munoz-Martin Lara Fernandez Adrian Perez Joan Adrià Ruiz-de-Azua Hyuk Park Adriano Camps Bernardo Carnicero Domínguez Massimiliano Pastena |
author_facet |
Joan Francesc Munoz-Martin Lara Fernandez Adrian Perez Joan Adrià Ruiz-de-Azua Hyuk Park Adriano Camps Bernardo Carnicero Domínguez Massimiliano Pastena |
author_sort |
Joan Francesc Munoz-Martin |
title |
In-Orbit Validation of the FMPL-2 Instrument—The GNSS-R and L-Band Microwave Radiometer Payload of the FSSCat Mission |
title_short |
In-Orbit Validation of the FMPL-2 Instrument—The GNSS-R and L-Band Microwave Radiometer Payload of the FSSCat Mission |
title_full |
In-Orbit Validation of the FMPL-2 Instrument—The GNSS-R and L-Band Microwave Radiometer Payload of the FSSCat Mission |
title_fullStr |
In-Orbit Validation of the FMPL-2 Instrument—The GNSS-R and L-Band Microwave Radiometer Payload of the FSSCat Mission |
title_full_unstemmed |
In-Orbit Validation of the FMPL-2 Instrument—The GNSS-R and L-Band Microwave Radiometer Payload of the FSSCat Mission |
title_sort |
in-orbit validation of the fmpl-2 instrument—the gnss-r and l-band microwave radiometer payload of the fsscat mission |
publisher |
MDPI AG |
publishDate |
2020 |
url |
https://doi.org/10.3390/rs13010121 https://doaj.org/article/2e4b924e48bf44d09139632eb12c5340 |
genre |
Sea ice |
genre_facet |
Sea ice |
op_source |
Remote Sensing, Vol 13, Iss 121, p 121 (2020) |
op_relation |
https://www.mdpi.com/2072-4292/13/1/121 https://doaj.org/toc/2072-4292 doi:10.3390/rs13010121 2072-4292 https://doaj.org/article/2e4b924e48bf44d09139632eb12c5340 |
op_doi |
https://doi.org/10.3390/rs13010121 |
container_title |
Remote Sensing |
container_volume |
13 |
container_issue |
1 |
container_start_page |
121 |
_version_ |
1766192746884759552 |