# Presentation: 516422

## GOES DCS Backup Facility StudyKickoff Meeting

- Presented to NOAA/NESDIS
- Mark Bailey, AC Technologies
- Advanced Computation and Information Services
- 4640 Forbes Blvd., Suite 320
- Lanham, MD  20706

- October 2, 2003

## Agenda

- Objective
- Site Selection
- Major Requirements
- High Level Table of Contents
- Project Staff
- Project Schedule
- Discussion

- October 2, 2003

## Objective

- From the Statement of Work:
- The objective of this study is to determine the resources necessary to develop a viable backup facility for the GOES DCS system at another location other than the Wallops Command and Data Acquisition (WCDA) station in Wallops Island, Virginia.

- October 2, 2003

## Major Site Selection Criteria

- Not susceptible to the same weather threats as Wallops CDA
- Good Satellite Visibility to GOES-East, GOES-West and DOMSAT
- Good RF Environment for required uplinks and downlinks
- Favorable zoning and local environment for constructing necessary antennas and facilities
- Infrastructure and facilities to support 24x7 operation

- October 2, 2003

## Site Selection

- NOAA and AC Technologies will identify approximately eight preliminary sites
- Existing DCS User Facilities
- Existing NOAA or Government Facilities
- Desirable Geographic Location and Weather
- For each existing facility, NOAA will identify a Point of Contact
- Each site will complete a “Site Self-Evaluation Form”

- October 2, 2003

## Site Selection

- AC Technologies will select three sites for detailed evaluation
- We will visit each site and prepare a detailed site evaluation
- Our report will include a discussion of the advantages and disadvantages of these three sites

- October 2, 2003

## Major Requirements

- The GOES DCS backup facility will be a complete system based on DAPSII, including antennas and RF equipment, and demodulators.
- The backup facility will run as a hot backup.
- The GOES DCS Backup facility will have an availability of 99.5%.

- October 2, 2003

## Major Requirements

- If  there is no data on the DOMSAT uplink for one minute (from the primary DCS facility), there will be an automatic switchover to the backup facility.
- There can be no more than one minute of lost data on the DOMSAT uplink.
- DERIVED REQUIREMENTS
- The backup facility must provide Pilot signals to GOES-East and GOES-West and the DOMSAT uplink signal.
- The backup facility must provide automatic switchover from the primary facility for all of these links.

- October 2, 2003

## Major Requirements

- If there is a DAPS-II system failure that does not cause an interruption of data to the DOMSAT uplink, operators can initiate a switchover to the backup facility.
- The backup facility is responsible for providing real-time DOMSAT data.  There is no requirement to retransmit missing or old data over the DOMSAT link after any switchover.

- October 2, 2003

## Major Requirements

- If there is a failure of the internet data dissemination, there will not be a complete switchover to the backup facility.
- Switchover from the backup facility to the primary can be manual.
- There will be no dial-in telephone lines at the backup facility.

- October 2, 2003

## Major Requirements

- The backup facility must provide the same management reports, PDT tables, statistics and alarms as the primary facility.
- DERIVED REQUIREMENT:  PDT Tables and other databases must be synchronized between the two facilities.
- Internet users will know which facility they are getting data from and are responsible for switching to the backup site if their data is not available from the primary site.

- October 2, 2003

## High Level Table of Contents

- 0	Executive Summary
- 1	Introduction
- 2	DCS Ground System Overview
- 3	GOES DCS Backup Facility Requirements
- 4	Distributed Wallops Backup and Enhanced Data Dissemination

- October 2, 2003

## High Level Table of Contents

- 5	GOES DCS Backup Conceptual Facility Layout (CLIN 0001)
- 6	Backup Facility Concept of Operations (CLIN 0008)
- 7	Candidate Site Selection
- 8	Detailed Site Evaluations

- October 2, 2003

## High Level Table of Contents

- 9	Implementation (CLIN 0007, CLIN 0008)
- 10	Summary and Conclusions
- Appendix 1	Wallops DCS Equipment List and Configuration
- Appendix 2	Statement of Work Compliance Matrix

- October 2, 2003

## Project Staff

- Anand Swaroop, AC Technologies
- Mark Bailey, AC Technologies
- Mike Maloney, Ilex Engineering
- Duane Preble, Microcom Design
- Mark Heggli, Meteorological Consultant
- Technical Specialist, AC Technologies
- We are interviewing candidates now for this position

- October 2, 2003

## Project Schedule

- October 2, 2003

## Discussion

- October 2, 2003