CYGNSS Earth Venture Mission Overview
2023 ESSP Program Forum
NASA Langley Research Center
Science Lightning Talk
22 August 2023
CYGNSS
NASA Earth Venture Mission
Chris Ruf
University of Michigan
CYGNSS Mission Overview
•
Flight Segment Design
–
Eight satellites in low Earth orbit at 520 km altitude / 35
o
inclination carrying bistatic GPS radar receivers
•
Science Objectives
–
Over ocean: Near surface wind speed under all precip
–
Over land: Soil moisture and inland water mapping under all
vegetation
•
Mission Timeline
–
Launch 15 Dec 2016
–
Science Phase E since Mar 2017; currently in extended Phase E
•
7 of 8 spacecraft still operational
CYGNSS Coverage
.
CYGNSS Global Wind Speed Product
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4
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1
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3
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CYGNSS L3 Merged Wind Speed
Global Coverage Examples
•
TCs Nicholas, Sam and Grace
Released Soil Moisture Data Product
(6 hr and daily versions available)
CYGNSS soil moisture data product released by the PO.DAAC
CYGNSS Land Imaging Capability
.
•
High res land imaging from coherent specular scattering
•
Images of the same section
of the Amazon River by:
–
SMAP active radar
~3 km resolution
–
CYGNSS GNSS-R
<< 3 km resolution
–
SMAP passive microwave
~30 km resolution
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M
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TRITON, Taiwanese National Space
Organization (NSPO)
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Single spacecraft
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Launch later in 2023
•
HydroGNSS, European Space Agency
(ESA)
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Two spacecraft constellation
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Launch 2024
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P
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M
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Spire, GNSS-R
3U CubeSats
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2 Batch-1 s/c launched 2019
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2 Batch-2 s/c launched 2020
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1 Batch 3 s/c launched 2023
•
Muon Space, Mountain View, CA
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MuSat-1 launched 2023 (bus only)
–
MuSat-2,3 launch 2024 (GNSS-R payload)
The CYGNSS Earth Venture Mission involves eight satellites in low Earth orbit designed to measure near-surface wind speed over oceans and map soil moisture and inland water under vegetation on land. Launched in December 2016, the mission has been successful, currently in its extended phase with seven operational spacecraft. It provides valuable data products and high-resolution land imaging capabilities, with plans for follow-on government and private sector missions in the future.
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Presentation Transcript
2023 ESSP Program Forum NASA Langley Research Center Science Lightning Talk 22 August 2023 CYGNSS NASA Earth Venture Mission Chris Ruf University of Michigan
CYGNSS Mission Overview Flight Segment Design Eight satellites in low Earth orbit at 520 km altitude / 35o inclination carrying bistatic GPS radar receivers Science Objectives Over ocean: Near surface wind speed under all precip Over land: Soil moisture and inland water mapping under all vegetation Mission Timeline Launch 15 Dec 2016 Science Phase E since Mar 2017; currently in extended Phase E 7 of 8 spacecraft still operational
CYGNSS Global Wind Speed Product Typical 24 hours of v3.1 L3 FDS Winds
CYGNSS L3 Merged Wind Speed Global Coverage Examples TCs Nicholas, Sam and Grace
Released Soil Moisture Data Product (6 hr and daily versions available) CYGNSS soil moisture data product released by the PO.DAAC
CYGNSS Land Imaging Capability High res land imaging from coherent specular scattering Images of the same section of the Amazon River by: SMAP passive microwave ~30 km resolution SMAP active radar ~3 km resolution CYGNSS GNSS-R << 3 km resolution .
Follow On Govt Missions TRITON, Taiwanese National Space Organization (NSPO) Single spacecraft Launch later in 2023 HydroGNSS, European Space Agency (ESA) Two spacecraft constellation Launch 2024 8
Follow-On Private Sector Missions Spire, GNSS-R 3U CubeSats 2 Batch-1 s/c launched 2019 2 Batch-2 s/c launched 2020 1 Batch 3 s/c launched 2023 Muon Space, Mountain View, CA MuSat-1 launched 2023 (bus only) MuSat-2,3 launch 2024 (GNSS-R payload) 9
