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Planar ion trap (retarding potential analyzer) experiment for atmosphere explorer
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Hanson, W. B. Zuccaro, D. R. Sanatani, S. Lippincott, C. R. |
| Copyright Year | 1982 |
| Description | The retarding potential analyzer and drift meter were carried aboard all three Atmosphere Explorer spacecraft. These instruments measure the total thermal ion concentration and temperature, the bulk thermal ion velocity vector and some limited properties of the relative abundance of H(+), He(+), O(+) and molecular ions. These instruments functioned with no internal failures on all the spacecraft. On AE-E there existed some evidence for external surface contamination that damaged the integrity of the RPA sweep grids. This led to some difficulties in data reduction and interpretation that did not prove to be a disastrous problem. The AE-D spacecraft functioned for only a few months before it re-entered. During this time the satellite suffered from a nutation about the spin axis of about + or - 2 deg. This 2 deg modulation was superimposed upon the ion drift meter horizontal ion arrival angle output requiring the employment of filtering techniques to retrieve the real data. |
| File Size | 428075 |
| Page Count | 8 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19830028298 |
| Archival Resource Key | ark:/13960/t1mh2fg5n |
| Language | English |
| Publisher Date | 1982-12-01 |
| Access Restriction | Open |
| Subject Keyword | Geophysics Explorer 55 Satellite Ion Concentration Explorer 51 Satellite Explorer 54 Satellite Atmospheric Composition Hydrogen Ions Ion Temperature Helium Ions Earth Ionosphere Oxygen Ions Molecular Ions 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 |
