Engineering topics
Publications and source records attributed to Worden, A. M..
Crew observations of the Apollo 15 flight are presented. The observations are concerned with the following phases of the flight: (1) translunar and transearth coasts, (2) lunar landing and ascent, (3) standup extravehicular activity, (4) surface experiment deployment, (5) lunar traverse geology, and (6) orbital observations.
Visual observations from Apollo 15 lunar orbits are discussed, complementing photographic and other remotely sensed data. Color tone of surface units, global tectonic trends, and small scale features are considered. Visual observations were made on Tsiolkovsky Crater, swirls in Mare Marginis, Picard Crater region, Proclus Crater, Littrow Crater area, landing site area, flow fronts in Mare Imbrium, and Aristarchus Plateau.
Photographic observations of astronomical interest conducted during the Apollo 15 mission are discussed. Procedures used in photographing the solar corona are described together with calibration and reduction methods. In addition, selected preliminary results obtained from the photography are presented.
To supplement orbital photography and other remotely sensed data, visual observations were made of 15 lunar surface targets during Apollo mission 15. Among the significant results are (1) characterization of the floor material of Tsiolkovsky as no darker than the average (Eratosthenian) mare material, and interpretration of the lineated unit on the crater rim as a rock avalanche; (2) identification of layers on the wall of the crater Picard, which is probably volcanic in origin, (3) explanation of the ray-excluded zone of the crater Proclus as the result of structurally controlled ray shadowing; (4) observation of cinder cones in the Littrow area with dark haloes that probably are composed of pyroclastic deposits; and (5) recognition that the termini of numerous sinuous rilles in Oceanus Procellarum are flooded with younger mare materials that may have covered older terminal deposits.