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Spot the Spacecraft: Ground-based Telescopes to Photograph NASA’s OSIRIS-REx During Earth Flyby

On Sept. 22, NASA’s OSIRIS-REx (Origins, Spectral Interpretation, Resource Identification, and Security – Regolith Explorer) spacecraft will make a close approach to Earth, using the planet’s gravity to slingshot itself toward the asteroid Bennu. Over the course of several days, observatories and amateur astronomers with specialized equipment will be able to see OSIRIS-REx as the spacecraft approaches and retreats from its closest position over Earth, approximately 11,000 miles (17,000 km) above the planet’s surface.

The mission will collect images of OSIRIS-REx taken by observatories and other ground-based telescopes around the world during this period – approximately Sept. 10-23, depending on location and local conditions. Observers from the OSIRIS-REx Target Asteroids! citizen science program, who regularly volunteer their time to help scientists study near-Earth asteroids, will be among those who train their telescopes on the spacecraft’s path.

“The opportunity to capture images of the OSIRIS-REx spacecraft as it approaches Earth provides a unique challenge for observers to hone their skills during this historic flyby,” said Dante Lauretta, OSIRIS-REx principal investigator at the University of Arizona, Tucson. “As the spacecraft approaches Earth for its own imaging campaign, ground-based observers will also be looking up and taking photos from the opposite perspective.”

For more information about this study, visit:

https://www.nasa.gov/feature/goddard/2017/ground-based-telescopes-to-photograph-osiris-rex-during-flyby

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