4 - 15 LUNAR SURFACE OBSERVATIONS AND PHOTOGRAPHY A. Test Objectives E-1 Behavior and Characteristics of the Lunar Surface E-2 Erosion of Lunar Surface by DPS Plume Impingement E-3 Effect of Any DPS Venting on the Lunar Surface H-2 Crew Performance of Visual Tasks on the Lunar Surface J-5 Study and Description of Lunar Topography Features L-3 TV Coverage of Lunar Surface Near LM L-4 TV Panoramic Coverage of Distant Terrain Features L-5 Coverage of Astronaut Activities on the Lunar Surface M-3 Obtain Photographs During EVA B. Test Requirements 1. Provide TV coverage of the lunar surface in the vicinity of the LM and panoramic scenes of distant terrain features. [L] 2. Photograph the lunar terrain at various azimuths with respect to the sun including 9, 90 and 180 degrees. Comment on ability to see terrain features in these areas. [H, M] 3. Estimate the distance to prominent terrain features within the field of view of photographs taken. [H] 4. Observe lunar surface characteristics including texture, consistency, compressibility, cohesiveness, adhesiveness, density and color. [E] 5. Study and photograph the mechanical behavior of the lunar surface from interactions of astronauts boots and equipment with the lunar soil, erosion by DPS plume impingement and DPS venting. [E, M] 6. Describe and photograph field relationships such as shape, size, range, pattern of alignment or distribution of all accessible types of lunar topographic features. [J,M] 7. Photograph the structure of lunar surface material in its natural state. [M] C. Procedures/Checklist 1. Mission G Photographic and Television Operations Plan. D. Data Requirements 1. Flight Crew Report/Logs/Photographs a. Report condition of the temperature indicator viewing ports on the TV camera at the beginning and the end of the TV operations. [L] (M) b. Position of the TV camera scan rate switch at start of TV operation. [L] (M) c. Comments describing the interaction between astronaut boots and lunar surface while walking. [E] (M) d. Comments on slope and roughness characteristics of the landing terrain to include descriptions of craters, depressions, embankments or other obstacles. [E] (M) e. Comments on the color and texture of both undisturbed and mechanically disturbed areas of the lunar surface. [E] (M) f. Comments on lunar soil conditions adjacent to DPS vents to include any discoloration. [E] (M) g. Comments describing the lunar surface penetration by the Solar Wind Composition Staff and core sample tool under their own weight and the