The mechanical team assembles in the clean room where they prepared the PACE Observatory before launch. (Photo: NASA)

A Vivid New View of Earth

Living on Earth - A powerful new NASA satellite called PACE can look at the ocean and clouds to distinguish between different kinds of microscopic ph...

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Keeping PACE with the Oceans

NASA Goddard - Did you know that we can detect tiny organisms called phytoplankton from space?  These creatures affect the colors of the ocean, and ...


NASA Leader Emphasizes Satellite Data and Collaboration to...

Via Satellite - NASA wants to play a key role alongside the commercial satellite industry to use satellite technology to help avert the climate cris...

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PACE Makes the Invisible Visible

NASA Goddard - PACE, the Plankton, Aerosol, Cloud and ocean Ecosystem mission, views our entire planet every day, returning data at a cadence that all...

Aerosols, as observed by PACE’s HARP2 and SPEXone instruments.

PACE Celebrates National Ocean Month With Colorful Views of the...

NASA - What do you give to an ocean that has everything? This year, for National Ocean Month, NASA’s Plankton, Aerosol, Cloud, ocean Ecosystem (PAC...

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Setting the PACE in Ocean Observations: NOAA Incorporating New...

NOAA - NOAA offers a comprehensive set of ocean color products that integrate information from NOAA, NASA, and international partner satellites. Thes...

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New PACE Data Tutorials

EarthData - NASA's Plankton, Aerosol, Cloud, ocean Ecosystem (PACE) spacecraft recently began providing scientists with their first look at the high...

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The Plankton, Aerosol, Cloud, ocean Ecosystem Postlaunch Airborne eXperiment (PACE-PAX) will be a field campaign to gather data for the validation of the upcoming PACE mission. PACE-PAX will be conducted in September, 2024, roughly nine months after the launch of PACE. The operational area will be Southern and Central California and nearby coastal regions. Sixty flight hours are planned each for the NASA ER-2 and the CIRPAS Twin Otter. Both will be based in their home airports at NASA Armstrong Flight Research Center and Marina Municipal Airport, respectively. Flights will be coordinated between the aircraft, with PACE overflights, and with surface based observations including ship-based measurements and floats. Data will be made available within six months following the conclusion of the campaign.
More details are in our white paper and website.


PACE-PAX validation objectives
1. Validate new PACE products
2. Assess spatial and temporal scale impact on validation
3. Provide sufficient data to validate in a narrow swath
4. Validate radiometric and polarimetric properties
5. Target specific geometries, season, and time of day
6. Focus on specific processes or phenomena


Mission Scientist: Kirk Knobelspiesse (NASA GSFC)
Deputy Mission Scientist: Brian Cairns (NASA GISS)
Deputy Mission Scientist: Ivona Cetinić (NASA GSFC)
Project Manager: Sommer Nicholas (NASA ARC)
Deputy Project Manager: Judy Alfter (NASA ARC)

PACE Project Scientist: Jeremy Werdell (NASA GSFC)
PACE Deputy Project Scientist: Brian Cairns (NASA GISS)
PACE Deputy Project Scientist: Antonio Mannino (NASA GSFC)
PACE Program Scientist: Laura Lorenzoni (NASA Headquarters)
PACE Deputy Program Scientist: Hal Maring (NASA Headquarters)
PACE Applications Program Lead: Woody Turner (NASA Headquarters)