Period changes of three satellites in 1971 determined from observations of the program 'ATMOSPHERE'
Abstract
About 4000 visual and 1000 photographic observations of 3 satellites have been used to determine the changes of the orbital period in the second half of 1971. The perigee heights of the satellites were 350, 690, and 930 km, respectively. The resulting period changes have been compared with the appropriate density curves from the Jacchia-71 model.
- Publication:
-
Conference on Scientific Research by Artificial Satellites Observations
- Pub Date:
- 1975
- Bibcode:
- 1975aso..conf..427I
- Keywords:
-
- Atmospheric Density;
- Orbital Elements;
- Periodic Variations;
- Satellite Tracking;
- Data Processing;
- Optical Tracking;
- Perigees;
- Photographic Tracking;
- Satellite Orbits;
- Space Communications, Spacecraft Communications, Command and Tracking