NanoRacks-Ground-Based Sodium Laser Guide Star Imaging of 1U CubeSats (NanoRacks-Centennial-1) - 07.14.16
Adaptive optics is a method of continually adjusting a telescope to correct for distortions caused by the atmosphere, and usually requires a guide star for calibration. But sufficiently bright stars are not available in all parts of the sky, so some adaptive optics systems use lasers instead. NanoRacks-Ground-Based Sodium Laser Guide Star Imaging of 1U CubeSats (NanoRacks-Centennial-1) demonstrates an adaptive optics system for ground-based tracking and identification of 10 centimeter CubeSats, improving imaging systems used to avoid satellite collisions. Science Results for Everyone
Information Pending Experiment Details
OpNom: NanoRacks CubeSat Deployer
Brian Abbe, M.S., Booz Allen Hamilton, Belcamp, MD, United States
Brian Gunderson, M.S., Booz Allen Hamilton, Dayton, OH, United States
Booz Allen Hamilton, McLean, VA, United States
Sponsoring Space Agency
National Aeronautics and Space Administration (NASA)
National Laboratory (NL)
ISS Expedition Duration
March 2015 - September 2015
- Obtaining sufficiently detailed images of satellites using natural guide star adaptive optics from terrestrial telescopes has been difficult.
- NanoRacks-Ground-Based Sodium Laser Guide Star Imaging of 1U CubeSats (NanoRacks-Centennial-1) images a 1U CubeSat sized object from the ground for Space Situational Awareness using optical imaging and a sodium laser guide star.
- A sodium laser is used to correct for atmospheric distortion and improve image clarity in the telescope.
- The laser does not image the object; therefore, the laser does not need to be pointed directly at the satellite during imaging and can be offset from the imaged object.
- NanoRacks-Centennial-1 demonstrates that this imaging technique is safe to the satellite and does not impact operations through measurement of the laser energy by a photon detector positioned on the satellite.
This investigation tests sodium lasers as a guide star for adaptive optics systems used to track small satellites. The laser does not harm the satellite, but makes it possible to obtain more accurate and precise satellite images, an important step toward developing a tracking system for all natural and manmade objects orbiting Earth. Knowing where all objects are in relation to each other can help satellites avoid collisions. The investigation also demonstrates high-performance Advanced RISC Machines (ARM) based processors for data-intensive, short duration space missions.
Earth is surrounded by hundreds of thousands of natural and artificial objects, which include tiny micrometeoroids and large satellites for telecommunications, weather, military use and other applications. Space situational awareness is the ability to view and predict the locations of these objects, with a goal of avoiding collisions. This investigation makes it possible to obtain images of very small satellites to improve space situational awareness efforts, heading off collisions and protecting satellites that benefit people on Earth.
Operational Requirements and Protocols
Decadal Survey Recommendations
Information Pending^ back to top
Information Pending^ back to top
Booz Allen Hamilton
+ View Larger Image