NASA Engineers Work to Resolve SHERLOC Instrument Issue
NASA's Perseverance rover team is addressing a malfunction with the SHERLOC instrument's Autofocus Context Imager, which has partially obstructed its operations.
NASA engineers are working to resolve an issue with the SHERLOC instrument on the Perseverance Mars rover, specifically with the Autofocus Context Imager (ACI). Although progress has been made in moving the ACI cover closer to a fully open position, the Raman spectroscopic capability of the instrument remains offline. The team has tested various methods, including heating, increasing torque, and using the rover's drill, to manipulate the cover.
The cover's partial opening has affected the instrument's ability to collect spectroscopy data and use its laser on rock targets. However, the WATSON camera, which captures close-up images of rock surfaces, can still operate through a separate aperture. Engineers are exploring ways to stabilize the cover and continue using SHERLOC's laser in its current position.
SHERLOC, part of a seven-instrument suite on Perseverance, is designed to search for signs of past microbial life by analyzing organic compounds and minerals. The mission is structured to ensure science objectives can still be met even if one instrument fails. Other instruments, such as PIXL and SuperCam, also perform spectroscopy.
Perseverance has been on Mars since February 2021 and has completed over 1,000 Martian days (sols). It has collected data on 34 rock targets, generating 261 hyperspectral maps. The mission's primary goal is to search for signs of ancient life and prepare for future human exploration of Mars. Future missions, in collaboration with the European Space Agency, will aim to return collected samples to Earth for detailed analysis.
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