NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Errors induced in the measurement and azimuth directions of morphological features imaged on oblique Lunar Orbiter photographsMany quantitative lunar studies, e.g., the morphology and dimensions of craters, crater density and distribution, have been performed using oblique Lunar Orbiter photographs. If the inherent change in scale and azimuth direction of features imaged on these photographs are not corrected, the measurement can be in considerable error and the resulting statistical inferences may be invalid. The magnitude of this error is dependent upon: the depression angle of the camera, the flight height of the spacecraft, the focal length of the camera, and the position and orientation of the object on the ground. The errors introduced by using unrectified oblique photographs as though they were vertical photographs are examined for several Lunar Orbiter high resolution NASA LRC Enhancement photographic prints taken at various depression angles.
Document ID
19760049549
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Siegal, B. S.
(Pennsylvania State University University Park, Pa., United States)
Date Acquired
August 8, 2013
Publication Date
May 1, 1974
Publication Information
Publication: Modern Geology
Volume: 5
Subject Category
Lunar And Planetary Exploration
Accession Number
76A32515
Funding Number(s)
CONTRACT_GRANT: NGL-39-009-010
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available