Scientific activities with suggestions for making this data available, such as type, frequency, quantity, media/method are welcome to contact the FAA GPS/ Navigation Product Team, AND-500, at 800 Independence Ave SW, Washington, DC 20591.

The WAAS contractor is required to provide the surveys for site location and has already begun this activity. Monuments for locating the GPS and geosynchronous communications satellite receive antennas will be US Geodetic Survey Federal Base Network Point or equivalent. The accuracy requirements specified are:

• Horizontal: 5 cm

• Ellipsoidal Height 10 cm

• Orthometric Height 10 cm NAVD 88

Antenna placement errors relative to the local monument are specified to be within 1 cm horizontal and 2 cm vertical.

The Local Area Augmentation System (LAAS) is intended as a system to provide more precise positioning capability for precision approaches. Local area in this case means from 25 to 30 miles. The FAA is in the process of conducting the analysis necessary to make a decision on the LAAS system. Because of the capital investment required and the budget environment the FAA would build the system only if the system is cost beneficial over it's expected service life. Current work is devoted to integrity/continuity, pseudolite proof of concept and system architecture. Later, specifications will be prepared and more detailed modeling and analysis conducted and a contract awarded to build the system. If all activities area completed as planned and if resources are available system specifications could be complete by the end of 1998.

FAA (Federal Aviation Administration). 1995. Federal Aviation Administration Specification Wide Area Augmentation System (WAAS) FAA-E-2892A.

Front Matter (R1-R6)

Contents (R7-R10)

I Workshop Summary (1-2)

Executive Summary (3-5)

1 Introduction (6-9)

2 Networks and Data Sources (10-13)

3 Remote Sensing of the Atmosphere (14-17)

4 Dynamic Positioning and Navigation (18-20)

5 Static Positioning (21-22)

II Workshop Proceedings (23-24)

6 Civilian GPS Planning and Policy Making in the Federal Government (25-39)

7 Networks and Data Sources (40-109)

8 Remote Sensing of the Atmosphere (110-163)

9 Dynamic Positioning and Navigation (164-200)

10 Static Positioning (201-226)

Appendices (227-227)

A Statement of Task (228-228)

B Biographical Sketches of Steering Committee Members (229-230)

C Workshop Attendees (231-233)

D Working Group Participants (234-235)

E Workshop Agenda (236-239)