Day 4

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Paper title SATLANTIS’ satellite missions roadmap to boost downstream applications for environmental sustainability
Authors
  1. AINOA ZIARSOLO SATLANTIS Speaker
  2. Roberto Fabrizi SATLANTIS
  3. MARCOS UBIERNA
  4. RAFAEL GUZMAN U. Florida and SATLANTIS
Form of presentation Poster
Topics
  • B7. NewSpace missions
    • B7.03 New Space missions with small and nanosatellites
Abstract text SATLANTIS is a European leader in HR and VHR Earth Observation capabilities offering an EO Space Infrastructure built around iSIM (the integrated Standard Imager for Microsatellites) optical-payload concept for small satellites. SATLANTIS offers an End-to-End solution from Upstream satellite development, launch, and operations to Downstream data generation, processing and delivery (e.g., data analytics for methane measurements).

SATLANTIS’ iSIM imager presents three main disruptive capabilities for optical payloads with low mass: enhanced spatial resolution, multispectrality and agility, able to have a relevant impact on several EO value-added applications.

URDANETA is the name of SATLANTIS’ first fully owned satellite, that will be launched in Q2 2022 with SpaceX’s Falcon 9 launcher. This satellite is incorporating an iSIM-90 imager onboard a 16U CubeSat sensor bus providing an innovative solution for several applications on Earth Observation. The main characteristics of URDANETA are: 17.4 kg mass, 4 spectral bands (RGB and NIR), 2.5 m satellite resolution in RGB and NIR, 14.3 km swath, pointing agility: > 1º/sec and 98 Mbps data download rate.

GEI-SAT constellation is the name of a family of four satellites that embarks SATLANTIS’ innovative solution for methane emissions detection and quantification. GEI-SAT pursues hot spot mapping of low emission levels of methane with a low-mass and low-cost very high-resolution multispectral SWIR camera onboard CubeSats & MicroSats.
The constellation consists of a first GEI-SAT Precursor, a 16U CubeSat (17.4 kg, ~150 kg/h detection threshold, 2.2m resolution @VNIR and 13m resolution @SWIR, up to 1700 nm) to be launched in Q3 2023; two more Microsats (92 kg, ~100 kg/h detection threshold, 0.8m resolution @VNIR and 7m resolution @SWIR , up to 1700 nm) to be launched in Q3 2024, and another Microsat expanding spectral capabilities and with similar resolution and better detection threshold (92 kg, ~50 kg/h (TBC) detection threshold, 0.8m resolution @VNIR and 9m resolution @SWIR , up to 2300 nm) to be launched in Q3 2025.

The LEO constellation composed by a CubeSat and three Microsats will employ robust and flight proven platforms compatible with small launchers. The operation lifetime will be of 4 years for the CubeSat, and >5 years for the Microsats. The Ground Segment will include the mission operations & control centre and the data processing and services centre.

The proposed methane detection method is the Multispectral Differential Photometry. It is carried out in collaboration with End users such as ENAGAS by taking images with several filters and, using the different signal values measured at the different wavelengths, obtaining the methane absorption. Before being able to do that, the acquired images have to be corrected for atmospheric effects using radiative transfer models in order to pass from detector units (e-/s) to column concentration units (ppb·m). Again, these concentration units have to be corrected for wind effects, using meteorological models in order to pass from column concentration units to flux units (kg/h).

GEI-SAT constellation will contribute to Improve annual reporting on methane emission with higher frequency measurements & prepare for global certification on CH4 emissions reduction in future legislation world-wide. The high spatial resolution that GEI-SAT provides in its SWIR channel, together with the geo-localization provided by its very high resolution for VNIR channel images, will allow an unprecedented ability (4 to 16 times better than other satellites) to distinguish the exact location of the methane leak or uncontrolled emission at a global scale. In order to achieve this object, the constellation will be operated in coordination with Sentinel-5P to perform an operational Tipping and Cueing capability for quantification of point source of CH4.

By enhancing EO capabilities from Space and pursuing climate Mitigation applications deriving from satellite-based observations, both satellite missions are based on innovative EO data processing from space and share the goals of a more sustainable life on Earth (showing the end-to-end service provider including space+ground segments), using SATLANTIS’ own innovative imagery pinpointing to specific application domains such as GHG emissions (GEI-SAT) and lands/water quality (URDANETA).