NASA took advantage of the recent close approach of the Psyche probe to Mars to calibrate its observation instruments. https://www.wired.com/story/a-probe-took-incredible-pictures-of-mars-on-its-way-to-a-far-off-asteroid/?utm_brand=wired-science&utm_campaign=aud-dev&utm_medium=social&utm_social-type=owned&utm_source=voante-science