urn:nasa:pds:context:instrument:mars2020.lcam 1.0 1.15.0.0 Product_Context LVS 2021-01-26 1.0 First version urn:nasa:pds:context:instrument_host:spacecraft.mars2020 instrument_to_instrument_host 10.1007/s11214-020-00765-9 Maki, J.N., Gruel, D., McKinney, C. et al. The Mars 2020 Engineering Cameras and Microphone on the Perseverance Rover: A Next-Generation Imaging System for Mars Exploration. Space Sci Rev 216, 137 (2020). Lander Visual System (LVS) Imager The Lander Visual System (LVS) is a camera-based navigation system that images the terrain beneath the descending spacecraft during its Entry, Descent, and Landing. LVS computes the final landing position by comparing the aquired imagery with onboard maps and, further, detects hazards and/or obstacles (such as boulders or outcroppings) to be avoided. In the case where hazards are observed, LVS can direct the spacecraft to a safer location. All this must transpire within the very small period of time of 10 seconds.