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NASA advances solar sail deployment efforts after initial delay

Written by  Tuesday, 27 August 2024 16:04
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Los Angeles CA (SPX) Aug 27, 2024
NASA's Advanced Composite Solar Sail System (ACS3) has initiated deployment operations for its innovative solar sail. However, during the initial attempt to unfurl the sail, the process was paused when an onboard power monitor detected higher-than-expected motor currents. Despite this, communications, power, and attitude control for the spacecraft all remain normal. Mission managers are now focu
NASA advances solar sail deployment efforts after initial delay
by Clarence Oxford
Los Angeles CA (SPX) Aug 27, 2024

NASA's Advanced Composite Solar Sail System (ACS3) has initiated deployment operations for its innovative solar sail. However, during the initial attempt to unfurl the sail, the process was paused when an onboard power monitor detected higher-than-expected motor currents. Despite this, communications, power, and attitude control for the spacecraft all remain normal. Mission managers are now focused on analyzing data from the spacecraft to understand and resolve the cause of this interruption.

A key objective of this technology demonstration is to test the expanding boom system, which is being deployed on a spacecraft of this size for the first time. The spacecraft's booms, akin to a sailboat's booms, are crafted from a new material that is both stiffer and lighter than previous designs. This innovative technology holds significant potential for lowering the cost of deep space missions and enhancing access to space.

The mission operators have successfully downloaded data from the spacecraft during scheduled communications windows when it passes within range of mission control at Santa Clara University in California. The team is currently conducting a thorough analysis and assessing all spacecraft systems before resuming the deployment operations.

NASA's Small Spacecraft Technology program, which oversees this mission, embraces a philosophy of risk tolerance. This approach allows for the rapid maturation of space technologies that are critical to fulfilling the needs of NASA and the nation. The program's dedication to advancing space technology is evident in its support for innovative projects like the ACS3.

The Advanced Composite Solar Sail System represents a significant step forward in space exploration technology. Solar sails, which harness the pressure of sunlight for propulsion, offer a promising alternative to traditional chemical propulsion methods. By reducing the need for fuel, solar sails can enable longer and more sustainable missions, particularly for deep space exploration. The success of the ACS3 mission could pave the way for future missions that utilize this technology to explore the far reaches of our solar system.

Related Links
Advanced Composite Solar Sail System (ACS3)
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