Accession Number:

ADA634547

Title:

Long-Term Performance Analysis of GIOVE Clocks

Descriptive Note:

Conference paper

Corporate Author:

EUROPEAN SPACE AGENCY NOORDWIJK (NETHERLANDS)

Report Date:

2010-11-01

Pagination or Media Count:

11.0

Abstract:

Passive Hydrogen Maser PHM and Rubidium Atomic Frequency Standard RAFS are the two baseline on-board clock technologies for Galileo, the European Global Navigation Satellite System GNSS, which are currently being validated on-board two experimental spacecrafts, GIOVE-A and GIOVE-B. These two spacecraft are orbiting in a Galileo-representative orbit and transmit Galileo-representative signals that are tracked and collected by a network of evenly distributed sensor stations the Galileo Experimental Sensor Stations. The collected observables pseudo-range and carrier phase are being processed by the GIOVE Processing Centre, providing, as one of its core products, the estimation of the phase offset between the on-board clock and a reference clock, chosen to be an Active Hydrogen Maser connected to one of the sensor stations.

Subject Categories:

  • Lasers and Masers
  • Unmanned Spacecraft

Distribution Statement:

APPROVED FOR PUBLIC RELEASE