DLR IPY Data Portfolio: TerraSAR-XHigh Resolution SAR Data from Space

Erhard DiedrichHead of Division International Ground Segment DLR – German Remote Sensing Data Center

Institut für Methodik der Fernerkundung bzw. Deutsches Fernerkundungsdatenzentrum

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• High-resolution radar missionHigh-resolution radar mission

• National ImplementationNational Implementation

• Launch: June 15Launch: June 15thth, 2007, 2007

• Scientific and commercial Scientific and commercial applicationsapplications

• Public / private co-fundingPublic / private co-funding

Public Private Partnership (PPP)Public Private Partnership (PPP)

Introduction

Institut für Methodik der Fernerkundung bzw. Deutsches Fernerkundungsdatenzentrum

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“TerraSAR-X, a National Science Mission with Commercial Potential”

DLR• Project Management• G/S Development & Ops• Science Coordination• System Engineering Support

Infoterra• Service Infrastructure• Information Products• Commercial Exploitation

Main Mission Goals: Provision of TerraSAR-X data and products for scientific applications public

interest Commercial exploitation of remote sensing data by industry

Public Private Partnership

EADS Astrium• Platform Development• Instrument Development• Launch on Dnepr-1

Institut für Methodik der Fernerkundung bzw. Deutsches Fernerkundungsdatenzentrum

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TerraSAR-X Satellite

-514 km altitude

-11 days orbit repeat cycle

-Right looking, but rolling to left looking possible

-256 Gbit memory (~350 secs StripMap data)

-Average load case:110 secs in StripMap and50 secs in Spotlight mode

-Peak load (x2)

-Transmit & receive in H or V polarization (single / dual)

-Experimental dual receive antenna mode

Institut für Methodik der Fernerkundung bzw. Deutsches Fernerkundungsdatenzentrum

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TerraSAR-X Ground Segment – Mission Operations

DLR Payload Ground SegmentOberpfaffenhofen

DLR Ground Station Neustrelitz is primary receiving station

Institut für Methodik der Fernerkundung bzw. Deutsches Fernerkundungsdatenzentrum

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First TerraSAR-X image processed on June 19th

Stripmap, HH polarization

Novopetrovskiy/Russia near Volgograd

Tsimlyansk Reservoir / river Don

Commissioning Phase finalized successfully by end of 2007

System fully operational since begin of 2008

Institut für Methodik der Fernerkundung bzw. Deutsches Fernerkundungsdatenzentrum

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TerraSAR-X Data Portfolio

Catalogue search and order service

New acquisition (“future products”) order service

SpotLight Mode

Resolution: 1 m 1,5 m ... 3,5 mScene Size: 5 km...10 km 10 km

[Range Azimuth]

StripMap Mode

Resolution: 3 m 1,5 m ... 3,5 mScene Size: 100 km 30 km

[Range Azimuth]

ScanSAR Mode

Resolution: 16 m 16 mScene Size: 100 km 100 km

[Range Azimuth]

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Spotlight Image: King George Island October 9,2007Dual pol HH/VV

Institut für Methodik der Fernerkundung bzw. Deutsches Fernerkundungsdatenzentrum

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Digital Elevation Model Salar Uyuni & Mt. Tunupa

DEM spacing ~ 8 m x 8 m

av. coherence

0.7

Eff. baseline 270 m

Height ambiguity

17.2 m / cycle

DEM accuracy

~ 0.8 m (+ atmosphere TBD)

TerraSAR-XStripmap DEM

SRTMDEM

Institut für Methodik der Fernerkundung bzw. Deutsches Fernerkundungsdatenzentrum

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Access to TerraSAR-X data

Mission data policy basics

Commercial exploitation: Infoterra / EADS-Astrium

Scientific utilization: DLR

Both parties equally share the satellite resources

Infoterra

Commercial order service and customer support

Catalogue and future products

Direct Access service and value added products

DLR

Science coordination

Management of data access via scientific proposals (like Cat 1 use of ESA)

Catalogue and future products

Institut für Methodik der Fernerkundung bzw. Deutsches Fernerkundungsdatenzentrum

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Access to TerraSAR-X data for scientific use I

The status is gained via a selection process

proposal submission

evaluation (mission objectives, data requirements, scientific use criteria)

General proposal submission (since October 2007):

Submission at any time

Data provision for the costs of fulfilling the user request / specific IPY handle

Announcement of Opportunity

Related to specific topics

Special conditions

Next AOs planned for

synergistic use with Rapid Eye

other SAR frequencies

Institut für Methodik der Fernerkundung bzw. Deutsches Fernerkundungsdatenzentrum

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Access to TerraSAR-X data for scientific use II

Accepted proposals:

Creation of a proposal specific user account

quota of products for the agreed purpose.

priority

The provision of data requires

the signature of the user license agreement

the list of people having access to the TerraSAR-X data

the confirmation of the corresponding funding

Institut für Methodik der Fernerkundung bzw. Deutsches Fernerkundungsdatenzentrum

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Access to TerraSAR-X data for scientific use in IPY

Join accepted proposals (requires agreement with PI):

A number of proposals referring to IPY existing with different status

Detailed overview within presentation of Dana Floricioiu (DLR)

Submission of new proposals

Further proposals possible at any time

IPY proposals still without cost

One coordinated proposal - to be discussed ??

Acquisition plan is set up by

Proposals and the respective ordering of acquisitions

Background mission

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Data Policy

National security regulations established due to needs for international harmonization, e.g. for ITAR related issues

German law providing regulations in force

Satellitendatensicherheitsgesetz (Sat DSiG)

Definition for EO missions etc to be regulated by this law

Need for permissions of data distribution for DLR and Infoterra

Need for permission of operating mission

Defining regulations about users / people having access to the data

Defining “sensitive data” depending on resolution and phase information

Regulating urgency of the product provision (<10 days)

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Science Service System

Proposal submission: http://sss.terrasar-x.dlr.de

Documentation etc: http://www.dlr.de/tsx/start_en.htm

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Conclusion

Data acquisition plan

Is set up indirectly by scientific proposal and the corresponding ordering of data

Your ordering drives what is acquired!

IPY proposal and intensified use is possible and welcome

Data Policy

Equal share of scientific and commercial use

Security regulations by law to be obeyed