Accession Number:

AD0757807

Title:

A System of Sixteen Synchronous Satellites for Worldwise Navigation and Surveillance.

Descriptive Note:

Interim rept. Jul 70-Jun 71,

Corporate Author:

TRANSPORTATION SYSTEMS CENTER CAMBRIDGE MASS

Personal Author(s):

• Morrison,John J.

Report Date:

1973-03-01

Pagination or Media Count:

61.0

Abstract:

The report considers the orbital mechanics aspects of a system of satellites to be used for position determination of any point on or near the surface of the earth. Only satellites having a period of twenty-four hours are examined. No perturbing forces are taken into account. Three and four satellites are required to be visible at twenty and ten degrees elevation angles respectively. A system of sixteen satellites is described which has the required properties. Author

Descriptors:

• *SYNCHRONOUS SATELLITES
• *ORBITS
• NAVIGATION SATELLITES
• SPACE SURVEILLANCE
• CIRCULAR ORBITS
• INCLINED ORBIT TRAJECTORIES
• SYSTEMS ENGINEERING
• AIR TRAFFIC CONTROL SYSTEMS

Subject Categories:

• Air Navigation and Guidance
• Spacecraft Trajectories and Reentry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE