| Автор | MASURSKY, H. |
| Автор | CRABILL, N. L. |
| Дата выпуска | 1976 |
| dc.description | During the past several years the Viking project developed plans to use Viking orbiter instruments and Earth-based radar to certify the suitability of the landing sites selected as the safest and most scientifically rewarding using Mariner 9 data. During June and July 1976, the Earth-based radar and orbital spacecraft observations of some of the prime and backup sites were completed. The results of these combined observations indicated that the Viking 1 prime landing area in the Chryse region of Mars is geologically varied and possibly more hazardous than expected, and was not certifiable as a site for the Viking 1 landing. Consequently, the site certification effort had to be drastically modified and lengthened to search for a site that might be safe enough to attempt to land. The selected site considered at 47.5°W, 22.4°N represented a compromise between desirable characteristics observed with visual images and those inferred from Earth-based radar. It lies in the Chryse region about 900 kilometers northwest of the original site. Viking 1 landed successfully at this site on 20 July 1976. |
| Формат | application.pdf |
| Издатель | American Association for the Advancement of Science |
| Копирайт | 1976 by the American Association for the Advancement of Science |
| Тема | Article |
| Название | The Viking Landing Sites: Selection and Certification |
| Тип | research-article |
| Electronic ISSN | 1095-9203 |
| Print ISSN | 0036-8075 |
| Журнал | Science |
| Том | 193 |
| Первая страница | 809 |
| Последняя страница | 812 |
| Аффилиация | U.S. Geological Survey, Flagstaff, Arizona 86001 |
| Аффилиация | NASA Langley Research Center, Hampton, Virginia 23665 |
| Выпуск | 4255 |
| Библиографическая ссылка | CARR, M.H., PRELIMINARY-RESULTS FROM VIKING ORBITER IMAGING EXPERIMENT, SCIENCE 193: 766 (1976). |
| Библиографическая ссылка | MASURSKY, H, GEOTIMES 21: 18 (1976). |
| Библиографическая ссылка | MASURSKY, H, 59 US GEOL SURV INT (1975). |
| Библиографическая ссылка | TYLER, G.L., RADAR CHARACTERISTICS OF VIKING-1 LANDING SITES, SCIENCE 193: 812 (1976). |
