4 - 16 estimated force. [E] (Mandatory for either the staff or the core sample tool: highly desirable for the other.) h. Comments on lunar soil erosion as caused by the DPS plume impingement during landing. [E] (M) i. Record vent valves opened. [E] (M) j. Photograph the lunar surface showing DPS plume impingement erosive effects. [E, M] (M) k. Photograph the lunar surface adjacent to DPS vents if soil discoloration is observed. [E, M] (M) l. Photograph an astronaut footprint showing interaction between astronaut boots and lunar surface. [E, M] (M) m. Photograph the Solar Wind Composition Experiment Staff and core sampling tool after being inserted to their maximum depth as penetrometers. [E, M] (HD) n. Photograph the natural slopes, crater walls and embankments in the vicinity of the landing site. [E,M] (M) o. Photograph from the CSM of the lunar surface surrounding the LM. [E, M] (HD) p. Comments on the visibility of the lunar terrain as a function of the sun/viewing angle and on their ability to perform visual tasks while on the lunar surface. [H] (M) q. Comments on color/contrast perception. [H] (M) r. Comments on and significant unexpected visual phenomena. [H] (M) s. Estimate of distance to at least one prominent terrain feature within the field of view of the photographs in item »t« below. [H] (M) t. Photograph the lunar terrain at various sun azimuths to include 0 degrees, 90 degrees and 180 degrees. [H, M] (M) u. Photograph any unexpected visual phenomena. [H, M] (HD) v. Photograph a representative depression caused by use of the scoop in collecting fine grained fragmental material. [E, M] (M) w. Photograph one scoop of fine grained fragmental material placed in one of the pre-numbered bags. [E, M] (HD) x. Photograph of each LM foot pad and surrounding lunar soil exhibiting evidence of LM foot pad - lunar soil interaction. [M] (HD) 2. Ground Support a. LM TM HBR. [E, L] (HD) b. Estimate of incident illumination. [D] (M) c. Video tape of all TV coverage. [L] (M) d. Record of S-band signal strength during TV transmission. [L] (M) e. GET at beginning and end of TV transmission. [L] (M) f. Time period when LBR TM was transmitted simultaneously with TV. [L] (M) g. Identity of ground station(s) used to record LM video transmission. [L] (M) h. Time period when erectable antenna was used to transmit from the lunar surface. [L] (M)