# Presentation: 395980

## Emergency Data Distribution Network

**Emergency Data Distribution Network**

**Proposal**
- to add an independent
**GOES DCS Reception and Distribution System**
- to complement the
**NESDIS Wallops Island Facility**
**Presented by Ernest Dreyer, USGS/WRD**
**January 23, 2008**

## Overview

- Review EDDN project
- Provide a current status

## EDDN Project GOALS

- Receive data from all DCPs transmitting in the GOES DCS independently of Wallops Island.
- Locate facility at a receive site(s) sufficiently distant from Wallops Island to achieve event independence.
- Implement additional pilot signal at a location other than Wallops Island.
- Distribute data independently of Wallops Island.

## STIWG/NESDIS Proposal

- Locate the emergency distribution system at the USGS EROS Data Center in Sioux Falls, South Dakota.
- USGS and NOAA/NESDIS will share the costs for procurement of the Direct Readout Ground Station system.
- System will be primarily operated by USGS with support from NESDIS.
- Operational costs will be shared among users who agree to participate and NESDIS.

## Limitations

- Contains no system to
- Make new assignments
- Data will be acquired from any transmitting DCP and so an internal schedule will not be necessary.
- Generate abnormal platform response messages - changed!!!
- Messages will be checked for abnormal conditions as long as there is access to a PDT file.

## Limitations (cont.)‏

- Distribution will initially be over the Internet using the DDS protocol.
- No DOMSAT transmissions
- No direct land-lines
- Depends on the existence of a usable pilot signal.

## Basic EDDN System

- DRGS system with 2 antennas for GOES East and West ( at least 7M )‏
- DOMSAT system for data from Wallops Island
- LRGS systems for acquiring and distributing data.
- Web Server for reporting system status.

## Some Features required of theEDDN GOES Receive System

- Receive both 100 and 300 baud messages on the same channel.
- Support a backup pilot signal and be able to switch to the backup if the primary signal fails.

## Diagram of Proposed System

## System Monitoring

- Use Big Brother system monitoring
- Write Big Brother clients for monitoring
- DRGSs via the DAMS NT event socket
- LRGSs via system logs
- Other events significant to the operations of system
- Big Brother can
- Display current status on web site
- Send notifications to email groups
- Page users

## System Control

- After initial setup, system should operate with a minimum of operator intervention.
- System will be remotely managed using a remote system console assisted by on-site support.

## Current Status of EDDN

## Calendar of Contract Events

- Contract Awarded in July  2007 to Microcom Design Inc.
- Contract began in Early August 2007.
- Contract to be completed in February 2008.

## Status of EROS Installation

- Antennas
- GOES East:		New 7.5M antenna has been installed.
- GOES West:		Existing 8.1M antenna has been 		                               						refurbished.
- DOMSAT:			New 2.4M antenna has been installed.
- Backup:			Backup 3.8M antenna has been installed.
- Cabling
- All power cables have been installed.
- All communications cables have been installed.

## Status of EROS Installation(cont)‏

- GOES Receivers
- GOES Receivers are installed and receiving data from all domestic channels on GOES East and West.
- To Be Done
- Testing and fine tuning system will continue until final acceptance.
- Operational training will occur during the last two weeks of February.
- Integration into operational systems will begin in March.

## Slide 16

## Installing Conduits

## Cabling from Warehouse to Main Building

## Hole for 7.5M Antenna Pad

## 7.5M Antenna for GOES West

## 7.5M Antenna for GOES West

## Three New Antennas

## 8.1M Antenna at EROS for GOES East

## GOES Receive Equipment at EROS

## EROS System Diagram

## Status Display on EROS LRGS

## Status of Other Related Activities 

- LRGS Software
- Version 6.1 of LRGS software is being tested and refined.
- Public EDDN Web Server
- A Web server (lrgseddn1.cr.usgs.gov) is being constructed to provide:
- Status of the public LRGSs
- Access to Big Brother Monitoring Page
- Server Pages that
- Describe the  EDDN
- Describe message format
- Describe how to obtain and install LRGS software
- Make available relevant Documentation
- Accessible mirror of the LRGS software source code repository

## Status of Other Related Activities 

- User Registration
- A Synchronization scheme has been established to mirror user information for  users registered on the NESDIS LRGS systems.
- When scheme has been implemented, users already registered with NESDIS will automatically be registered with the EDDN system.
- A proposal for a new format for user Ids is under consideration.
- Note:  Password authentication will be enabled.

## Status of Other Related Activities 

- User Access
- EDDN system can be accessed in the same manner as the current LRGSs at Wallops.
- For current LRGS users, if they upgrade to version 6.1, they can configure their LRGS to include the EDDN LRGSs as dynamic backups.

## Example of LRGS Configuration

- <!--
- #------------------------------------------------------------------
- #  Lrgs Configuration
- #------------------------------------------------------------------
- #
- # This is an example LRGS configuration file.
- #
- #       Data storage area
- archiveDir=/usr/opt/LRGS/archive
- numDayFiles=31
- #       Status snapshot interval
- htmlStatusSeconds=10
- #       DDS connections from other systems
- ddsListenPort=16003
- ddsRequireAuth=false
- #       DOMSAT configuration
- enableDomsatRecv=true
- domsatTimeout=60
- loadDomsat=true
- domsatClass=lrgs.domsatrecv.DomsatSangoma
- #       Remote DDS connections
- enableDdsRecv=true
- ddsRecvConfig=/usr/opt/LRGS/ddsrecv.conf
- recoverOutages=true
- mergePref1=DOMSAT
- mergePref2=DDS

## Example of DDS Configuration

- <!--
- This file holds the DDS Receiver Configuration.
- -->
- <ddsrecvconf>
- <connection number="1" host="lrgseddn2.cr.usgs.gov">
- <name>lrgseddn2</name>
- <port>16003</port>
- <enabled>true</enabled>
- <username>usgs.wrd.va</username>
- <authenticate>true</authenticate>
- </connection>
- <connection number="2" host="cdadata.wcda.noaa.gov">
- <name>CDADATA</name>
- <port>16003</port>
- <enabled>true</enabled>
- <username>usgs.wrd.va</username>
- <authenticate>true</authenticate>
- </connection>
- </ddsrecvconf>