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Sensitivity /comparison study between the jacchia 1970, 1971, and 1977 upper atmospheric density models
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Johnson, D. L. |
| Copyright Year | 1983 |
| Description | The neutral upper atmospheric models for the Earth's thermosphere currently used in NASA-MSFC programs are the Jacchia 1970 (J70), 1971 (J71), and 1977 (J77). The Jacchia 1970 model (modified) is used in all MSFC orbital mechanics analyses. Since total density and its variations are the main environmental parameters of interest in orbital lifetime and attitude control studies, the total neutral density was selected for this analysis. This report presents the results of a parametric study of the total density (at 400 km altitude) as computed with three MSFC/Jacchia models. The sensitivity of each of the density models at the summer solstice to varying solar conditions (flux) and geomagnetic (index) values is discussed. |
| File Size | 4162463 |
| Page Count | 134 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19830025124 |
| Archival Resource Key | ark:/13960/t5x68b63x |
| Language | English |
| Publisher Date | 1983-08-01 |
| Access Restriction | Open |
| Subject Keyword | Geophysics Geomagnetism Sensitivity Thermosphere Upper Atmosphere Atmospheric Density Solstices Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
