Earth Observation Mission data transfer experiment plan by using GEANT and APAN JAXA/EORC Osamu Ochiai, Isao Nakanishi APAN Taipei August 25 th 2005

Contents JAXA Earth Observation Mission status & plan Data exchange scheme for each Mission Purpose of the experiment Experiment detail Future Plan

JAXA Earth Observation Mission status & plan ～ Disaster Monitoring And Resource Management 【 Optical Sensor 】 MOS-1,ADEOS (87~95) (96~97) 【 Optical & SAR 】 JERS-1 (92~98) 【 Precipitation Radar 】 TRMM/PR (97~) 【 Microwave Sensor 】 MOS-1 (87~95) 【 Optical Sensor 】 MOS-1, ADEOS (87~95) (96~97) 【 Cloud Radar 】 【 Spectrometer 】 ADEOS/ILAS (96~97) JFY ALOS ADEOS-II/ ILAS-II GOSAT Aqua / AMSR-E GCOM-C/ GLI F/O ADEOS-II / GLI GCOM-W/ AMSR F/O 【 Sea Surface Wind Vector, SST 】 EarthCARE/ CPR Geo-Stationary Earth Observation Mission Disaster Monitoring constellation Mission GPM/DPR Note: This chart includes NOT authorized plan 【 CO2 】 Global Warming And Global Water Cycle Observation Water Cycle Observation Climate Change Observation Greenhouse Gas Observation 【 Cloud, Aerosol, Vegetation 】 【 Cloud, Aerosol 】 Legend Symbol Planned Project Approved Project After Operation Period ADEOS-II follow on

Data exchange scheme for each Mission - Current Operational Mission - SInet GSFC MAX GigE 10 Gig 2 mbps ATM DC College Park, MD Greenbelt MD JPL EMSnet NYC Abilene 10 gbps 6 mbps PVC Pasadena CA 10 Gig 5 Gig 25 mbps OC-12 Science Flows Operations Flows JAXA 25 mbps Tsukuba JAXA-EOC Hatoyama TRMM, AMSR-E Mission data TRMM, science data

Data exchange scheme for each Mission - Transit Operational Mission (use SInet case) - SInet JAXA-EOC GSFC MAX GigE 10 Gig DC College Park, MD Greenbelt MD NYC Abilene 10 gbps Hatoyama 10 Gig 5 Gig TBD mbps JAXA TBD mbps Tsukuba Combined Operations and Science Flows TRMM, AMSR-E, mission and science data

Data exchange scheme for each Mission - Transit Operational Mission (use APAN case) - Abilene 10 gbps GSFC Pacific Wave Star Light TXP MAX GigE Chicago, Il TransPac 10 gbps TransPac 10 gbps Los Angeles, CA Tokyo, JP College Park, MD Greenbelt MD TBD m 10 gbps JAXA JAXA-EOC Hatoyama TBD mbps Combined Operations and Science Flows TRMM, AMSR-E, mission and science data

Data exchange scheme for each Mission - Future Mission (1/2) - Each Node is associated with a geographical zone which defines the extent of its area of activity (supporting the physical residents therein as potential ALOS users) as an ADN partner. -ESA: Europe and Africa -NOAA/ASF: North and South America -GA: Oceania -JAXA: Asia -GISTDA: Asian Sub-Node CNES/ESA NOAA ASF JAXA GA Asia Region Europe and Africa Region Australia and Oceania Region North and South America Region Antarctica : JAXA in association with National Institute of Polar Research ALOS Data Node framework to enhance to use the data more efficiently. JAXA will receive global ALOS (to be launch in 2005) data via Data Relay satellite. JAXA to send the ALOS Level 0 data to each Node (Currently media (SONY/DTF-2) shipment.) JAXA and Nodes are discussing to move the High Speed network transfer. Data Volume totally 600GB/day (ESA: 146GB/day, ASF: 180GB/day, GA: 58GB/day, GISTDA: 61GB/day, other: 91GB/day). Each Node to receive the data in 24hours -> necessary STABLE/RELIABLE bandwidth 20Mbps/Node.

Data exchange scheme for each Mission - Future Mission (2/2) - High Latitude data receiving station and network transfer to Japan. ALOS (backup usage) GOSAT (nominal usage) Sweden, Kiruna Or Norway, Toromso/Svalvard High Latitude receiving station capture the GOSAT (and ALOS) data each 100min interval. Data Volume is 44GB/day for GOSAT and same level or more for ALOS. Receiving the data in 100min/orbit -> necessary STABLE/RELIABLE bandwidth over 20Mbps.

Purpose of the experiment Based on the JAXA EO satellite plan, data exchange volume will increase. Data exchange and distribution are also encouraged as near real time base. In terms of current mission (TRMM, AMSR-E), JAXA is planning to transit from leased line to APANorSInet. In terms of future mission (ALOS, GOSAT,...), data volume is huge and we need STABLE, RELIABLE and REASONABLE network. This Japanese Fiscal Year, JAXA is planning to evaluate the network performance, transfer protocol and security by using APAN before future mission become operational.

Experiment detail Sys. Configuration (1/3) GEANT a pan-European multi-gigabit data communications network Kiruna/SWEEDEN Tracking Station Abilene an Internet2 high-performance backbone network Area-A Area-B Tokyo/JAPAN NOC APAN Asia Pacific Advanced Network

IPv4 (IPv6 into the future) TCP XTP FTP AP JAXA/JAPAN Northern Europe APAN + Abilene + GEANT Experiment detail Sys. Configuration (2/3) Protocol Layer Configuration XTP (Xpress Transfer Protocol) :  Eliminates the impact of high latency due to distance delay, and accelerates all TCP based applications (especially large flow, e.g. large file transfer via intercontinental links).  Eliminates high packet loss and unnecessary retransmissions.  Establish communication pass immediately. (XTP:1 packet, TCP:3packets)  Supports multicast.

Experiment detail Sys. Configuration (3/3) Configuration for The Data Transfer Experiment (FY2005) Terminals (FTP Server/Client) Router(FireWall)XTP Router Console for XTP Router HUB APAN/GEANT XTP RouterRouter Terminals (FTP Server/Client) Tokyo/JAPAN Kiruna/SWEEDEN HUB

Experiment detail Test Overview Before we begin:  Verify by ping command that a healthy network exists end-to-end. The Test:  Transport mission data files (MAX size:1GB) via several FTP/TCP and FTP/XTP links.  Monitor the throughput of FTP/TCP and FTP/XTP traffic.  Verify that APAN network and XTP supplies efficient mission data transmission.

Future Plan ALOS Mission Data Transfer FY2005 FY2006 The Data Transfer Experiment The future projects