NASA selects site for asteroid sample collection

Posted on 09 Jan 2020 and read 803 times
NASA selects site for asteroid sample collectionAfter a year of ‘scoping out’ the boulder-scattered surface of asteroid Bennu (discovered on 11 September 1999 during a survey by Lincoln Near-Earth Asteroid Research), the Origins, Spectral Interpretation, Resource Identification, Security, Regolith Explorer (OSIRIS-Rex) mission team has concluded that a site designated Nightingale (located in a crater high in Bennu’s northern hemisphere) is the best spot for the spacecraft to collect its sample.

The team has spent several months evaluating close-range data from four possible sites, chosen for investigation because they pose the fewest hazards to the spacecraft’s safety.

Dante Lauretta, OSIRIS-REx (www.nasa.gov) principal investigator at the University of Arizona in Tucson, said: “After thoroughly evaluating all four candidate sites, we made our final decision based on which site has the greatest amount of fine-grained material and how easily the spacecraft can access that material while keeping the spacecraft safe.

“Of the four candidates, site Nightingale best meets these criteria.”

Site Nightingale is located in a northern crater 140m wide.

Its regolith (rocky surface material) is dark, and images show that the crater is relatively smooth.

The crater is also thought to be relatively young, and the regolith is freshly exposed, allowing for a ‘pristine’ sample of the asteroid.

A back-up sample collection site — Osprey— has also been identified.

With the selection of final primary and back-up sites, the mission team will undertake further reconnaissance flights over Nightingale and Osprey, beginning this month and continuing through the spring.

Once these flyovers are complete, the spacecraft will begin ‘rehearsals’ for its first ‘touch and go’ sample collection attempt, which is scheduled for August.

The spacecraft will leave Bennu in 2021 and is scheduled to return to Earth in September 2023.

Be seen in all the right places!

Shenzhen International Machinery Manufacturing MTA Vietnam 2020 Subcon 2020 TCT 3SIXTY Toolex 2020 Metal Show & TIB MTA Hanoi ITM Industry Europe 2020 Advanced Engineering 2020 Metaltech 2020 Manufacturing & Supply Chain Expo Machine Tool Indonesia 2020 MACH 2021 FITMA 2021

Machinery-Locator
The online search from the pages of Machinery Market.

Chen Ho 1500S Turret Milling Machine
Variable Speed Head
Spindle Speeds 50-4200 rpm
Spindle Taper R8
Table Size 42” x 9”
Power Feed T
Variable Speed Head Spindle Speeds 50-4200 rpm Spindle Taper R8 Table Size 42” x 9” Power Feed T...
Jet Machinery Ltd