تقرير
OSIRIS-REx Contamination Control Strategy and Implementation
العنوان: | OSIRIS-REx Contamination Control Strategy and Implementation |
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المؤلفون: | Dworkin, J. P, Adelman, L. A, Ajluni, T, Andronikov, A. V, Aponte, J. C, Bartels, A. E, Beshore, E, Bierhaus, E. B, Brucato, J. R, Bryan, B. H, Burton, A. S, Castro-Wallace, S. L, Clark, B. C, Clemett, S. J, Connolly, H. C., Jr, Cutlip, W. E, Daly, S. M, Elliott, V. E, Elsila, J. E, Enos, H. L, Everett, D. F, Franchi, I. A, Glavin, D. P, Graham, H. V, Hendershot, J. E, Harris, J. W, Hill, S. L, Hildebrand, A. R, Jayne, G. O, Jenkens, R. W., Jr, Johnson, K. S, Kirsch, J. S, Lauretta, D. S, Lewis, A. S, Loiacono, J. J, Lorentson, C. C, Marshall, J. R, Martin, M. G, Matthias, L. L, McLain, H. L, Messenger, S. R, Mink, R. GT, Moore, J. L, Nakamura, Messenger, K, Nuth, J. A., III, Owens, C. V, Parish, C. L, Perkins, B. D, Pryzby, M. S, Reigle, C. A, Righter, K, Rizk, B, Russell, J. F, Sandford, S. A, Schepis, J. P, Songer, J, Sovinski, M. F, Stahl, S. E, Thomas-Keprta, K, Vellinga, J. M, Walker, M. S |
بيانات النشر: | United States: NASA Center for Aerospace Information (CASI), 2017. |
سنة النشر: | 2017 |
مصطلحات موضوعية: | Lunar And Planetary Science And Exploration |
الوصف: | OSIRIS-REx will return pristine samples of carbonaceous asteroid Bennu. This manuscript describes how pristine was defined based on expectations of Bennu and on a realistic understanding of what is achievable with a constrained schedule and budget, and how that definition flowed to requirements and implementation. To return a pristine sample, the OSIRIS-REx spacecraft sampling hardware was maintained at Level 100 A/2 and less than 180 nanograms per square centimeter of amino acids and hydrazine on the sampler head through precision cleaning, control of materials, and vigilance. Contamination is further characterized via witness material exposed to the spacecraft assembly and testing environment as well as in space. This characterization provided knowledge of the expected background and will be used in conjunction with archived spacecraft components for comparison with the samples when they are delivered to Earth for analysis. Most of all, the cleanliness of the OSIRIS-REx spacecraft was achieved through communication between scientists, engineers, managers, and technicians. |
نوع الوثيقة: | Report |
اللغة: | English |
URL الوصول: | https://ntrs.nasa.gov/citations/20180002869 |
ملاحظات: | NNH09ZDA007O NNM10AA11C NNG12FD66C |
رقم الأكسشن: | edsnas.20180002869 |
قاعدة البيانات: | NASA Technical Reports |
الوصف غير متاح. |