...
3> take soil samples (4:07-4:15pm), marked as 1:0-3cm and 1:3-6cm (3-6cm sample may not be perfect,since a piece of brick was in the sample tube -- explaining why taking this core took a bit of effort! I would still use this measurement as typical of the "soil".) Soil was damp and sticky.
4> shoot the boom , measuring 80 degrees from the back so that it should be 80+180=260. I simply tried to center mast in the parts of the sonic "claws" that I could see (partially blocked by cables from the sonic electronics box). (4:25pm)