The role and applications of TV in the space program.
TV in space exploration, noting use in reconnaissance operations for mission planning
Schurmeier, H. M.↗
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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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The versatility of electrically propelled spacecraft for planetary missions.
Advanced reconnaissance electric planetary spacecraft /AREPS/ concept for repeated coverage of Mars or Venus surface, using solar-photovoltaic system
Dailey, C. C.↗
Electronography
Large roll-film electronographic camera for aerial reconnaissance and astronomical observations
Hall, J. A.↗
Versatility of electrically propelled spacecraft for planetary missions
Advanced reconnaissance electric planetary spacecraft /AREPS/ concept for repeated coverage of Mars or Venus surface, using solar- photovoltaic system
Dailey, C. C.↗
Snow and ice sensing with passive microwave and ground truth instrumentation - Recent results, South Cascade Glacier
Microwave radiometry for snow and ice sensing in aerial reconnaissance
Edgerton, A. T.↗
The color of the ocean Report of the conference, Aug. 1969
Presentations at conference on color of ocean with application to survey of earth resources by satellite observation and aerial reconnaissance
Thompson, W. I., III↗
Use of infrared imagery to locate surficial aquifers, Delmarva Peninsula, Maryland and Delaware
Infrared imagery as rapid reconnaissance technique for locating thickest sections of water-bearing surficial sand in peninsular areas
Hollyday, E. F.↗
'Vegetation penetration' with K-band imaging radars
Vegetation penetration with K-band side-looking airborne imaging radars, noting multifrequency multipolarization system application for terrain reconnaissance
Macdonald, H. C.↗
A rapid, precise, reciprocating-movement color filter system
Unit was designed for moving color filters in and out of position in less than 46 ms. System may be used to record previously derived colors on photorecorder or to scan different color or wavelength components of rapidly passing scene, as in aerial reconnaissance. Rapid, precise reciprocating movement may be useful in purely mechanical and chemical applications.
Phillipps, P. G.↗
A Viking satellite orbit trim strategy
One strategy is submitted for meeting the varied and stringent requirements of the Viking Project on the control of the satellite orbit to obtain reconnaissance and to prepare for lander release. To satisfy these requirements, different orbit trim maneuver strategies were developed for two typical Viking missions. In addition, a summary of recent numerical results is included to show that this strategy satisfies the mission requirements which have been identified.
Hintz, G. R.↗
Remote sensing for defining aquifers in glacial drift
Investigations were undertaken to determine the properties of shallow aquifers and related features that influence electromagnetic energy, to determine how these properties can be detected remotely, and to establish remote sensing procedures for aiding in ground water mapping. The direct influence of aquifier characteristics on surface thermal contrasts is discussed. Conclusions reached for late summer, predawn missions were: (1) Dynamic thermal changes near the surface can be used for thermal infrared sensing to detect shallow aquifers in glacial drift. (2) Under ideal conditions, surface temperatures may be used to predict certain features related to the occurrence of shallow aquifers. (3) The timing of missions and the optimum meteorological conditions occurring prior to and during the mission are critical for night thermal missions. (4) Repetitive flights made under variable conditions provide additional evidence to verify the occurrence of shallow aquifers. (5) Imagery from this investigation, along with ERTS-simulated imagery, indicates the feasibility of applying ERTS A and B data to reconnaissance studies for detection of shallow aquifers.
Myers, V. I.↗
Lunar surface engineering properties experiment definition. Volume 2: Mechanics of rolling sphere-soil slope interaction
The soil deformation mode under the action of a rolling sphere (boulder) was determined, and a theory based on actual soil failure mechanism was developed which provides a remote reconnaissance technique for study of soil conditions using boulder track observations. The failure mechanism was investigated by using models and by testing an instrumented spherical wheel. The wheel was specifically designed to measure contact pressure, but it also provided information on the failure mechanism. Further tests included rolling some 200 spheres down sand slopes. Films were taken of the rolling spheres, and the tracks were measured. Implications of the results and reevaluation of the lunar boulder tracks are discussed.
Hovland, H. J.↗
Mariner Mars 1971 project. Volume 2: Preliminary science results
Data from six Mariner Mars experiments are presented. Television reconnaissance of Mars and its satellites yielded information on atmospheric phenomena, surface features of the South Polar region, geology, and satellite astronomy. Other experiments involved infrared spectroscopy and radiometry; ultraviolet spectrometry; S band occultation for observing the atmosphere, ionosphere, and topography of Mars; and the use of celestial mechanics, to determine the gravity field pole direction of the planet.
Source record↗
Inventory and analysis of natural vegetation and related resources from space and high altitude photography
A high altitude photomosaic resource map of Site 29 was produced which provided an opportunity to test photo interpretation accuracy of natural vegetation resource features when mapped at a small (1:133,400) scale. Helicopter reconnaissance over 144 previously selected test points revealed a highly adequate level of photo interpretation accuracy. In general, the reasons for errors could be accounted for. The same photomosaic resource map enabled construction of interpretive land use overlays. Based on features of the landscape, including natural vegetation types, judgements for land use suitability were made and have been presented for two types of potential land use. These two, agriculture and urbanization, represent potential land use conflicts.
Poulton, C. E.↗
Aerodynamic characteristic of a swept-wing cruise missile at Mach numbers from 0.50 to 2.86
An investigation has been made in the Mach number range from 0.50 to 2.86 to determine the longitudinal and lateral aerodynamic characteristics of a cruise missile having a 58 deg swept wing and conventional aft tails. Such a vehicle might be applicable to missions such as surface- or air-launched tactical or strategic missiles, unmanned reconnaissance, or countermeasure decoys.
Spearman, M. L.↗
Application of ERTS-1 imagery to the study of caribou movements and winter dispersal in relation to prevailing snowcover
The author has identified the following significant results. Habitat differentiation was determined feasible using output from MSS band 6 because of apparent high correlations between surface moisture and habitat type on the test area. Progressive early snow distribution was readily determined from MSS outputs, particularly bands 4 and 5. Approximately thirty thousand caribou migrated into the test area during the reporting period, and aerial reconnaissance data on distribution were obtained for selected areas within several days of satellite overflight.
Lent, P. C.↗
The development of hurricane Inez, 1966, as shown by satellite nighttime radiometric and daytime television coverage
A complete documentation of Numbus 2 High Resolution infrared Radiometer data and ESSA-1 and 3 television photographs is presented for the life-time of Hurricane Inez, 1966. Ten computer produced radiation charts were analyzed in order to delineate the three dimensional cloud structure during the formative, mature and dissipating stages of this tropical cyclone. Time sections were drawn throughout the storm's life cycle to relate the warm core development and upper level outflow of the storm with their respective cloud canopies, as shown by the radiation data. Aerial reconnaissance weather reports, radar photographs and conventional weather analyses were used to complement the satellite data. A computer program was utilized to accept Nimbus 2 HRIR equivalent blackbody temperatures within historical maximum and minimum sea surface temperature limits over the tropical Atlantic Ocean.
Allison, L. J.↗
An evaluation of the suitability of ERTS data for the purposes of petroleum exploration
The author has identified the following significant results. ERTS-1 imagery seems to be good to excellent for reconnaissance level investigations of large sedimentary basins such as the Anadarko Basin. Many lithologic boundaries, and geomorphic features, and linear features inferred to be indicative of geologic structure are visible in the imagery. This imagery in conjunction with high altitude photography seems to be useful as a tool for intermediate level geologic exploration. Several types of crudely circular anomalous features, such as geomorphic/structural anomalies, hazy areas and tonal anomalies, are identifiable in the imagery. There seems to be a strong correlation between the geomorphic/structural and hazy anomalies and known structurally controlled oil and gas fields. The features recognizable on ERTS-1 imagery and their ease of recognition vary from area to area even in imagery acquired at the same time under essentially uniform atmospheric conditions. Repeated coverage is exceedingly valuable in geologic applications. One time complete coverage even for the various seasons does not reveal all the features that ERTS-1 can reveal.
Collins, R. J., Jr.↗