NASA has completed the installation of 864 solar cells onto the primary sunshade for the NEO Surveyor infrared space telescope. This six-meter-tall structure serves as the largest component of the spacecraft, functioning both as a thermal shield to protect the telescope’s sensitive infrared sensors from solar glare and as the sole power source for the entire observatory.
Engineering for Deep Space Detection
The sunshade is composed of two flat panels joined at a 23.5-degree angle, measuring 2.4 meters wide at its base. The 864 solar cells integrated into this structure are capable of generating up to 2 kilowatts of electricity, which will charge the onboard batteries required to operate all spacecraft systems. Because many asteroids reflect very little visible light, NEO Surveyor relies on infrared detection to identify the heat signatures of objects that would otherwise be obscured by the brightness of the Sun.
The telescope utilizes two 16-megapixel detector arrays, each tuned to a specific infrared band.
Technicians Test Sunshade Across Multiple Facilities
The development of the sunshade involved multiple facilities across the United States. Following its initial construction in Stockton, California, the structure received its solar cells in Albuquerque, New Mexico. It later underwent thermal vacuum testing in El Segundo, California, to simulate the extreme conditions of space before arriving at the BAE Systems Space & Mission Systems facility in Boulder, Colorado, in May. Technicians have since integrated low-precision solar sensors and temperature sensors, as well as completed functional and performance testing.
- Primary Mission: Identify and catalog near-Earth objects (NEOs) that may pose an impact risk.
- Technological Edge: Unlike general-purpose observatories, this is the first space telescope designed specifically for the detection of potentially hazardous asteroids and comets.
- Launch Timeline: The mission is currently scheduled for launch no earlier than September 2027.
The project builds upon the experience gained from the NEOWISE mission, though NEO Surveyor features enhanced capabilities to improve the accuracy of early warning systems for planetary defense, as noted by the agency.
