Ionization Gauge Measurements of Atmospheric Density from a Low Altitude Satellite PDF Download
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Author: J. P. McIsaac
Publisher:
ISBN:
Category : Atmospheric density
Languages : en
Pages : 494
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Book Description
Results obtained from an Air Force Satellite launched in the fourth quarter of 1974 are presented. Ionization gauge measurements of atmospheric density were performed, and the values obtained from these measurements are presented in two appendices in the form of density vs altitude and time plots. The method of data reduction its application is developed and discussed. The reduction technique differs from previously used techniques in that it is more suitable for the processing of large data files such as those obtained from satellite flights, as well as featuring a lessened dependence upon attitude determination. The experiment is also described and the theory of operation is given. (Author).
Author: J. P. McIsaac
Publisher:
ISBN:
Category : Atmospheric density
Languages : en
Pages : 494
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Book Description
Results obtained from an Air Force Satellite launched in the fourth quarter of 1974 are presented. Ionization gauge measurements of atmospheric density were performed, and the values obtained from these measurements are presented in two appendices in the form of density vs altitude and time plots. The method of data reduction its application is developed and discussed. The reduction technique differs from previously used techniques in that it is more suitable for the processing of large data files such as those obtained from satellite flights, as well as featuring a lessened dependence upon attitude determination. The experiment is also described and the theory of operation is given. (Author).
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 788
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Author: Kenneth S. W. Champion
Publisher:
ISBN:
Category : Artificial satellites
Languages : en
Pages : 32
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Book Description
The objectives of satellites OV1-16 (Cannon Ball I) and OV1-15 (SPADES) were to measure atmospheric density and related properties in the lower thermosphere with particular emphasis on the altitude region 120 to 150 km. This region is where least data are available and where data are urgently required for Air Force Systems vehicles and for accurate calculations of the re- entry locations of satellites. To achieve an orbit at the lowest possible altitude the mass-to-area ratio of Cannon Ball I was maximized and a spherical shape chosen to optimize the accuracy of the drag density measurements. Both satellites were launched into a polar orbit on 11 July 1968. The initial perigee of Cannon Ball I was 148 km and the apogee 575 km. The initial perigee for SPADES was 158 km and the apogee 1850 km. A considerable amount of density data was obtained from orbital drag and from an onboard triaxial accelerometer on Cannon Ball I and from orbital drag, accelerometer, and ionization gauges on SPADES.
Author:
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ISBN:
Category : Aeronautical instruments
Languages : en
Pages : 304
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Author:
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ISBN:
Category : Environmental geology
Languages : en
Pages : 490
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Author: Air Force Cambridge Research Laboratories (U.S.)
Publisher:
ISBN:
Category : Geophysics
Languages : en
Pages : 228
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Author: J. P. McIsaac
Publisher:
ISBN:
Category : Satellites
Languages : en
Pages : 32
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A new device for measuring spacecraft attitude was flown on the Air Force S3 -4 satellite. This report describes instrumentation, measurement technique, and operating results. Instrument attack angles were measured during night and day periods of most orbits. Attitude history plots and tables are given for the experiment from April to August 1978. (Author).
Author:
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ISBN:
Category : Military research
Languages : en
Pages : 572
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Author: Technology Reports Centre (Great Britain)
Publisher:
ISBN:
Category :
Languages : en
Pages : 506
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Author: Smithsonian Astrophysical Observatory
Publisher:
ISBN:
Category : Artificial satellites
Languages : en
Pages : 632
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