2. U.S. Department of the Interior U.S. Geological Survey Landsat Program Update October 2005 Presented By: U.S. Geological Survey, Center for EROS Sioux Falls, SD

3. 2 Agenda Landsat Archive Conversion Update Landsat 5 Data over Alaska Current Stations IGS Metadata WBVT Orphans

4. 3 Landsat Archive Landsat 1-5 Data  Over 9000 tapes in basement archive  Multiple tape formats Landsat 7 Data  Near-line silo  9940B tape technology

5. 4 LACS System - Objectives Objectives  Preserve Landsat Archive for Long Term  Provide Efficient Access to Archived Data Convert Data From DCT, HDT, and RCC to User-friendly Format Store Formatted Data on Computer-compatible Tape Generate Browse Imagery Generate Scene and Interval Metadata Maintain Database of Metadata Retain Historical Information, Including Status  Provide Faster Availability of New L5 Data

6. 5 LACS Development Original Plan  Transcribe archive tapes to off-line digital media  Duplicate new media for off-site storage Current Operations  Transcribe archive tapes to near-line archive silo Combines 1-5, 7 Into Single Architecture, Reduces Duplicate Processes, and Consolidates Management  Keep working copy of data in silo  Keep raw copy of data (to be put off-site in future)  Provides Similar Turnaround Time to Landsat 7  Improved browse, metadata, and automated cloud cover assessment similar to Landsat 7

7. 6 Landsat Archive Conversion System

8. 7 Transcription Duration Estimate Data TypeData QuantityTranscription Duration TM-RNew DataOngoing TM-R 4,781 HDTs (~24 TB) 3,431 DCTs (~147.5 TB) COMPLETE 1,946 COMPLETE (57%) TM-A108 DCTs (3.6 TB)Est. Completion in FY06 MSS-A277 DCTs (9.5 TB)Est. Completion in FY06 MSS-P118 DTS (3.2 TB)Est. Completion in FY06

9. 8 Landsat 5 Data over Alaska Established Quid Pro Quo agreement with University of Alaska Geographic Information Network of Alaska (GINA) and NOAA/NESDIS Fairbanks Command & Data Acquisition Station (FCDAS) Data received at FCDAS (at Gilmore Creek just outside Fairbanks, AK) Transmitted by GINA via high speed network to EROS for processing Agreement is year-to-year  Discussions with GINA indicate willingness to continue agreement for next growing season

10. 9 Sheenjek Fire near Fort Yukon On June 21, 2005, Landsat 5 captured this scene of the Sheenjek River fire near Fort Yukon, Alaska

11. 10 Landsat Global Network

12. 11 U.S. Landsat Archive Overview (Marketable Scenes through September 30, 2005) ETM+: Landsat 7  497,969 scenes  450TB RCC and L0Ra Data  Archive grows by 300GB Daily TM: Landsat 4 & Landsat 5  621,988 scenes  171TB of RCC and L0Ra Data  Archive Grows by 30GB Daily MSS: Landsat 1 through 5  641,555 scenes  20TB of Data

13. 12 L5 TM U.S. Global Archive Density Through Sept 30, 2005

14. 13 L7 ETM+ U.S. Global Archive Density Through Sept 30, 2005

15. 14 L5 TM U.S. Archive – Best CCA (Manually Assessed Through June 2004; Automated Since Then) Through Sept 30, 2005

16. 15 L7 ETM+ U.S. Archive – Best ACCA Through Sept 30, 2005

17. 16 L1-5 U.S. Archive Utilization (Difference Between Order and Acquisition Dates) Balanced Usage Illustrates the Value of the Historical Archive

18. 17 L7 U.S. Archive Utilization (Difference Between Order and Acquisition Dates) Balanced Usage Illustrates the Value of the Historical Archive

19. 18 IGS Metadata Landsat 7 Metadata  Currently ingesting Landsat 7 records from NASA Land Processes Distributed Active Archive Center (LPDAAC)  Search of metadata is available through EarthExplorer Landsat 1-5 Metadata  Working with current stations to collect metadata of ALL Landsat holdings  Discussed with stations in April 2005 at Landsat Technical Working Group meeting  November 2005 – Landsat Ground Station Operators Working Group (LGSOWG) Will discuss plans with stations to collect metadata Draft metadata format for transfer is in work

20. 19 EarthExplorer Search Capability

21. 20 MSS Reception at IC Stations

22. 21 TM Reception at IC Stations

23. 22 Wide-Band Video Tape (WBVT) Data Transcribed but Not Available  Due to a processing issue, over 160,000 scenes are unavailable  Working on a fix with MDA to correct problem Orphan Data Issue  Approximately 5TB of data are unavailable for ordering  Due to lack of ancillary data (such as telemetry of the spacecraft) for many scenes, there is no way to identify the scene location of the data  Working on a process to frame the data and provide location information (?FY06 – still in planning stages)