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Aerodynamic Re-Entry Analysis. Task 2. Thermoelectric Generator Summary Report

Description: An analytical trajectory and aerothermodynamic analysis of a satellite containing a Task 2 thermoelectric generator was completed. A 300-statute mile circular polar orbit was used for this analysis and the launch was assumed to be from Vandenberg Air Force Base. Results of this study show that upon natural decay from a successful mission, the radio-cerium fuel will burn up in space at high altitude, thus only a very minor amount of radio cerium will be released to the stratosphere. A complete a… more
Date: December 27, 1960
Creator: Oehrli, R.
Partner: UNT Libraries Government Documents Department
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SNAP Radioisotope Space Programs Quarterly Progress Report No. 9, October 1 Through December 31, 1961

Description: All Phase I and Phase II testing was completed. Both launches of Phase I were successful, neither Phase II launches were successful. Test data recovered on Phase I launchings included optical coverage of re-entry and the trajectory and weather data; no telemetry canister temperature data were obtained. No test data were obtained on Phase II experiments. Reduction of Phase I test data was begun. The Phase II (Sub-subtask 7.3.2) was terminated December 20, 1961, when no test data were recovered f… more
Date: October 31, 1962
Partner: UNT Libraries Government Documents Department
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Upper Atmosphere Re-Entry Study High Altitude Burnup. Volume 2

Description: Methods of determining the fate of radioactive fuels in space power units burned up on re-entry into the earth's atmosphere are reviewed. Particulate characteristics experiments were derived from an analytical study on the ablation of Dlutonium fuel. This study revealed that the particulate size distribution resulting on re-entry burnup is a function of: the fuel form in use and the material velocity and atmospheric density at the time the fuel is exposed. The particulate fate experiments were … more
Date: January 1, 1961
Partner: UNT Libraries Government Documents Department
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SNAP Radioisotope Space Programs. Quarterly Progress Report No. 11, April 1 Through June 30, 1962. Task 7

Description: The reduction and analysis of data from two re-entry heating tests on simulated SNAP fuel cores were completed. lmportant points in the analysis are presented. ldentification of one test specimen gives support to the following significant conclusions - the computational techniques used in re-entry analysis are highly accurate and the design theory applied to the design of SNAP flight hardware for burnup is conservative. Preparations for a third fuel core ablation test were concluded. For this t… more
Date: October 31, 1962
Partner: UNT Libraries Government Documents Department
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SNAP Radioisotope Space Programs. Quarterly Progress Report No. 8, Task 7, July 1 Through September 30, 1961

Description: Activities in a program devoted to the safety evaluation of isotopic power systems in space applications are reported. In the study of upper atmosphere re-entry, flare and telemetry test capsules were completed for scheduled re-entry tests. The altitude of re-entry burn-through for all phase I and II test capsules and nose cone-vehicle-pod relative position data were determined. These data were used in determining the optimum positions and headings for the optical and optical-telemetry aircraft… more
Date: October 31, 1963
Partner: UNT Libraries Government Documents Department
open access

SNAP PROGRAMS-UPPER ATMOSPHERE EXPERIMENTAL RE-ENTRY STUDY. Final Summary Report

Description: An experimental flight test was made to verify and improve the methods and techniques used to predict the aerothermodynamic effects on re-entering SNAP devices. The amount of aerodynamic heating as a function of body shape, size, and mode of entry was indicated. Test specimens yielded trajectory, aerodynamic heating data, heat distribution, and heat transfer of known bodies. IBM 7090 digital programs were utilized and so constructed that one digital code complemented the other, i.e., at any tim… more
Date: April 1, 1963
Creator: Hagis, W.
Partner: UNT Libraries Government Documents Department
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