# Presentation: 317631

## TDRSS’ History as an Internet Service Provider

- Dave Israel
- NASA/GSFC Code 567.3
- dave.israel@gsfc.nasa.gov
- June 25, 2001

## TDRSS ISP Overview

**TDRSS ISP Overview**

**The capability for NASA’s Tracking and Data Relay Satellite System (TDRSS) to support serial IP user data has existed since the installation of the South Pole TDRSS Relay in December 1997.**
**The infrastructure installed at White Sands for SPTR has proven to be valuable for other projects as well.**
- Space Internet demonstrations
- Educational Outreach Projects

- D. Israel GSFC/567.3

## The South Pole TDRSS Relay (SPTR)

**Installed in December 1997 to give the South Pole communications through TDRS-1**
**SPTR provides a two-way 1.024 Mbps IP connection and a one-way 5 Mbps file transfer service for nearly 5 hours/day**
**Any possible IP application is available through TDRSS for the South Pole**
- E-mail, surfing the web, FTP, Telnet
- Voice over IP
- Telemedicine
- Remote science operations

- D. Israel GSFC/567.3

## SPTR IP Connection

**SPTR IP Connection**

- D. Israel GSFC/567.3

## SPTR South Pole Hardware

**SPTR South Pole Hardware**

- D. Israel GSFC/567.3

## SPTR Additions to White Sands

**SPTR Additions to White Sands**

- D. Israel GSFC/567.3

## Current WSC Router Configuration

**NASA Internet**
**(NISN-SIP)**

**1 Mbps**

**NASA White Sands Complex**

**Internet**

**SSAF/R**

**KSAR**

**Store/**
**Forward**

**SSAF/R**

**KSAR**

**Store/**
**Forward**

**NI/STGT**
**ROUTER**
**(4500)**

**STGT**

**WSGT**

**L**
**O**
**W**
** ****R**
**A**
**T**
**E**
**S**
**W**
**I**
**T**
**C**
**H**

**S-Band**

**K-Band**

**S-Band**

**K-Band**

**NI/WSGT**
**ROUTER**
**(4500)**

**S2**

**E0**

**S1**

**E0**

**S2**

**E1**

**E1**

**S0**

**S0**

**S3**

**S1**

**MCS**

**Store/**
**Forward**

**Server**

**SSAF/R A**

**KSAR**

**SSAF/R B**

**.**

**.**

**SPTR**

**WART**

**IP User**
**B**

**IP User**
**A**

**Current WSC Router Configuration**

**Server**

**Server**

**TDI**

**TDI**

- D. Israel GSFC/567.3

## Other TDRSS IP Users/Demonstrations

**Once the SPTR infrastructure was installed at White Sands, the opportunity for other IP users existed**
**User hardware was either TDRSS Internet Link Terminal (TILT) or the ECOMM Internet Terminal**
**Recent demonstrations have also used the Low Power Transceiver (LPT)**
**  ****Feb 1998            Eclipse webcast from Aruba**
**  ****Nov 1998 - Present  OMNI Demonstrations**
**  ****Apr 1999            North Pole Expedition**
**  ****Aug 1999            Eclipse webcast from Black Sea**
**  ****Sep 1999            President Clinton in New Zealand**
**  ****Nov 1999            JSC Inspection Day 1999**
**  ****Dec 1999            Yosemite/West Virginia**
**  ****Nov 2000            JSC Inspection Day 2000**
**  ****Apr 2001            Women Quest North Pole Webcast**
**  ****Jul - Dec 2001      USCG Healy Arctic Research Cruise**

- D. Israel GSFC/567.3

## TILT S-Band System

**TILT S-Band System**

- D. Israel GSFC/567.3

## ECOMM Internet Terminal

**ECOMM Internet Terminal**

- D. Israel GSFC/567.3

## TDRSS ISP Photo Gallery

- Clockwise from top left:  SPTR antennas at the South Pole, ECOMM check out during
- North Pole Expedition, The OMNI Van, TILT in Istanbul during Eclipse ‘99 support

- D. Israel GSFC/567.3

## STS-107 Demonstration

**STS-107 Demonstration**

- Hitchhiker Payload on STS-107
- “CANDOS”
- May 2002 Flight

- D. Israel GSFC/567.3

## Summary

**TDRSS continues to be a valuable resource for Space Internet demonstrations**
- Infrastructure in place
- Global coverage allows demonstrations from the ground
**Lessons from TDRSS ISP history can be used to plan for future Space Internet users**
**Relevant websites:**
- http://nmsp.gsfc.nasa.gov/SPTR/
- http://ipinspace.gsfc.nasa.gov

- D. Israel GSFC/567.3