MARYLAND – The NASA OSIRIS-Rex spacecraft will leave asteroid Bennu which he has observed since 2018. OSIRIS-Rex is expected to arrive on Earth in 2023 with as much as 2 ounces of asteroid rock samples taken on October 20, 2020.
The OSIRIS-REx mission, officially known as Origins, Spectral Interpretation, Resource Identification, Security, Regolith Explorer, first arrived on the asteroid in December 2018 and has been orbiting it ever since.
During Wednesday’s flyby, the spacecraft will take the final shot Determining in the form of an image of the asteroid’s surface from only 2.3 miles away.
The images taken by the spacecraft today will show scientists how much the sample collection event changed the asteroid’s surface. The spacecraft will take nearly six hours to take pictures of Bennu, allowing his camera to see the asteroid rotating in full.
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This flyby route is familiar to OSIRIS-REx, which did the same when searching for landing sites during the 2019 survey. Images from 2019 will be used with the new images to make comparisons.
A few days after the flyby, all images and data will be sent back to the mission team so they can analyze the changes on Determining and evaluate spacecraft instruments. OSIRIS-REx will hang out around Bennu until May 10, then will embark on a two year 200 million mile journey back to Earth.