Accession Number:

AD0416596

Title:

PRECISION TIME AND FREQUENCY APPLICATIONS IN THE TRANSIT AND ANNA SATELLITE PROGRAM,

Descriptive Note:

Corporate Author:

JOHNS HOPKINS UNIV SILVER SPRING MD APPLIED PHYSICS LAB

Personal Author(s):

Report Date:

1962-12-14

Pagination or Media Count:

13.0

Abstract:

The advent of earth satellites and the advances in frequency and time control in the past decade have opened new fields in global navigation. The Transit program is an application of these achievements. For a navigator to determine his position by the system, doppler data, orbit data, and accurate time are required. These elements are provided by carrying a precision UT-2 clock and a radio commanded memory in the polar or biting satellite. As a consequency, world wide time synchronization is an important concept of the program. The ANNA program is a research ac tivity for improving knowledge of the earth geodesy and for comparing several precision orbit determining techniques. The general features of each system will be briefly described and the time-frequency synchronization problems dis cussed. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE