1. Letter from the Editor

   • Alfred Leick

   Legacy 01 January 1999 Pages: 1 - 2

2. A GPS-Supported Gravity Survey in the Amazon of Ecuador

   • Mamadou Balde
   • Jeremy Fishman
   • Mauricio F. de la Fuente

   FEATURE ARTICLES 01 January 1999 Pages: 3 - 17

3. Discussion of GPS Anti-Jam Technology

   • Mario M. Casabona
   • Murray W. Rosen

   FEATURE ARTICLES 01 January 1999 Pages: 18 - 23

4. The Discription and Performance of a Multisensor Precision Pointing System

   • Robert S. Harvey
   • M. Elisabeth Cannon

   FEATURE ARTICLES 01 January 1999 Pages: 24 - 36

5. IGS/BIPM Time Transfer Pilot Project

   • Jim R. Ray

   FEATURE ARTICLES 01 January 1999 Pages: 37 - 40

6. Seasonal Motion in the Annapolis, Maryland GPS Monument

   • Mark S. Schenewerk
   • Tonie M. Vandam
   • R. Steven Nerem

   FEATURE ARTICLES 01 January 1999 Pages: 41 - 49

7. A New Solar Radiation Pressure Model for GPS Satellites

   • T. A. Springer
   • G. Beutler
   • M. Rothacher

   FEATURE ARTICLES 01 January 1999 Pages: 50 - 62

8. The Reliability of GPS Ambiguity Resolution

   • Peter J. G. Teunissen
   • Peter Joosten
   • Dennis Odijk

   FEATURE ARTICLES 01 January 1999 Pages: 63 - 69

9. Monitoring Isostatic Rebound in Antarctica with the Use of Continuous Remote GPS Observations

   • Paul Tregoning
   • Bob Twilley
   • Dan Zwartz

   FEATURE ARTICLES 01 January 1999 Pages: 70 - 75

10. Automated GPS Data Analysis Service

    • James F. Zumberge

    FEATURE ARTICLES 01 January 1999 Pages: 76 - 78

11. Eye on the Iosophere

    • Joseph M. Kunches
    • John A. Klobuchar

    DEPARTMENTS 01 January 1999 Pages: 79 - 80

12. GPS & GLONASS Current Bibiography

    • Tomás Soler

    DEPARTMENTS 01 January 1999 Pages: 81 - 83