ANNA 1B
| ANNA 1B | |
|---|---|
|
|
| Country: |
 United States
|
| Operator: | US Air Force, US Navy, NASA, US Army |
| COSPAR-ID : | 1962-060A |
| Mission dates | |
| Dimensions: | 161 kg |
| Size: | 91 cm diameter |
| Begin: | October 31, 1962 |
| Starting place: | CC LC-17 |
| Launcher: | Thor Able star |
| Orbit data | |
| Rotation time : | 107.9 minutes |
| Orbit inclination : | 50.1 ° |
| Apogee height : | 1182 km (initially) |
| Perigee height : | 1076 km |
| Eccentricity : | 0.007 |
ANNA 1B was a geodetic earth satellite launched from Florida on October 31, 1962. In addition to NASA, it was operated by the three US armed forces. His name is composed of the initials of the operators together ( A irforce, N avy, N ASA, A rmy).
As a prototype of an active or flashlight satellite , ANNA 1B was supposed to serve to investigate the exact figure of the earth and the earth's gravitational field and for this purpose emitted short series of very bright flashes of light. The lightning bolts were photographed by satellite cameras on ground stations in front of the star background, so that the observations of distant stations were synchronized with an accuracy of 1/1000 s by the timer in the satellite.
The satellite also had the SECOR measurement system for distance measurements with microwaves for the first time . The power supply for all systems was provided by solar cells and batteries.
Web links
- ANNA in the Encyclopedia Astronautica (English)
swell
- Heinz Mielke: Lexicon of Space Travel , 6th edition, transpress VEB Verlag für Verkehrwesen, Berlin, 1980
- Günter Seeber: Satellite geodesy , Verlag de Gruyter, Berlin 1989
Individual evidence
- ↑ ANNA 1B in the NSSDCA Master Catalog , accessed on August 4, 2014 (English).