Redwire’s Critical Components Enabling GOES-18 Mission for Advanced Earth Monitoring

We go to space not just to explore and discover but to make life on Earth better. On March 1, 2022, the world gained a vital new tool in the global effort to heal our planet and information vital to combating the pernicious effects of climate change via the launch of NOAA and NASA’s Geostationary Operational Environmental Satellite (GOES)-T mission from Cape Canaveral Space Force Station in Florida. GOES-T is the third satellite in the GOES-R series, the Western Hemisphere’s most sophisticated weather observing and environmental monitoring system, and was renamed GOES-18 upon reaching orbit.

Redwire is proud to play an important role in this mission by delivering critical enabling sensor technology. Redwire has a long history of supporting GOES missions with its sensors over the course of nearly four decades. Redwire sun sensors will provide the GOES-T mission with the solar array pointing, sun acquisition, and precise Sun Platform orientation necessary for successful operations.

The GOES-T Mission

The GOES-R series of satellites provide advanced imagery and atmospheric measurements, real-time mapping of lightning activity, and space weather monitoring. The latest in the series, GOES-T, will continue to support the observations made by GOES-R (GOES-16) and GOES-S (GOES-17), but will benefit from modifications such as an upgraded magnetometer, which is expected to provide improved performance for measuring magnetic field variations.

Upon reaching orbit, GOES-T was redesignated as GOES-18, replacing GOES 17 as the satellite responsible for covering the western United States, including Alaska and Hawaii, as well as other regions. GOES-18 works jointly with GOES-16, NOAA’s operational GOES satellite for the eastern US and Atlantic. In addition to covering the US, these satellites will monitor more than half the planet, from the west coast of Africa to New Zealand.

Redwire Technology Enabling GOES-T

Redwire delivered six Coarse Sun Sensor (CSS) pyramids and a Fine Sun Sensor Assembly, consisting of a high accuracy Fine Sun Sensor Head and an electronics processing unit for the GOES-T mission.

The CSS pyramid is a 2-axis sensor containing four detectors, used for applications including solar array pointing, sun acquisition, and failsafe recovery. The CSS Pyramid has a rich flight history, having flown on more than 18 NASA missions. The Fine Sun Sensors are used in attitude control applications where sub-arcminute accuracy and millidegree angular resolution are required. At least 100 Fine Sun Sensors have flown on commercial GEO, scientific, and US Government programs.?

The Redwire tech is located on key areas of the GOES-T satellite. Four of the CSS Pyramids are mounted on the solar array, and two units are mounted on the spacecraft body. The four CSS Pyramids mounted on the solar array are deployed with two units on top of the array and two units on the bottom of the array, for full sky coverage with redundancy.?

Caption: Redwire’s Coarse Sun Sensor Pyramid has flown on more than 18 NASA missions.?

The Fine Sun Sensor is mounted on a special pointing platform on the GOES-T spacecraft. This high accuracy sensor has a small field of view with fine angular resolution, and it is used to accurately point the platform at the sun. This is critical for the spacecraft’s Extreme Ultraviolet and X-Ray Irradiance Sensors to correlate solar activity to upper atmosphere phenomena.?

?Caption: Redwire’s Fine Sun Sensors have flown on commercial GEO, scientific, and U.S. government programs.??

Critical Weather Monitoring for Better Preparedness? ?

?As GOES West, GOES-18 will be positioned to watch over the western contiguous United States, Alaska, Hawaii, Mexico, Central America, and the Pacific Ocean. The satellite will be ideally located to monitor weather systems and hazards that most affect this region of the Western Hemisphere. ?

Data from GOES-T will enable:??

• Better detection of heavy rainfall and flash flood risks?
• Better fire detection and intensity estimation?
• Better monitoring of smoke and dust?
• Improved detection of low clouds and fog?
• Improved hurricane track and intensity forecasts?
• Improved warning for communications and navigation disruptions and power blackouts?
• Increased thunderstorm and tornado warning lead time?

Caption: GOES-17 imagery of the underwater eruption of the Hunga Tonga-Hunga Ha’apai volcano on Jan. 15, 2022. Credit: NOAA/NASA

The mission recently achieved a major program milestone: Debuting its first imagery of Earth with a stunning planetary view. The satellite will continue with post-launch testing and calibrations of its instruments and systems before beginning operations.

Caption: GOES-18 observation of the Western hemisphere of the Earth taken May 5, 2022. Credit: NOAA/NASA

As we continue to see more extreme weather events on Earth, our work in space to observe, understand, and forecast these events is becoming more crucial than ever before. Again, Redwire is proud to provide critical components to enable the groundbreaking efficiency needed to support missions that will advance our capabilities in low-Earth orbit, keeping us safer on Earth for generations to come.

BY MIKE GOLD, REDWIRE EXECUTIVE VICE PRESIDENT, CIVIL SPACE AND EXTERNAL AFFAIRS

Read the original article on the Redwire website: Redwire’s Critical Components Enabling GOES-T Mission for Advanced Earth Monitoring.

Learn more about Redwire’s Coarse Sun Sensor Pyramid and Fine Sun Sensor.

Learn more about the GOES-T Mission.

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