1. National Aeronautics and Space Administration Goddard Space Flight Center Agenda EOS Data and Operations System (EDOS) Latency Enhancements EDOS Processing Timeline EDOS Latency Enhancements 2011 Plans for Future Latency Enhancements Bruce McLemore MOMS EDOS Project Manager February 8, 2012 Terri Wood NASA EDOS Project Manager

2. National Aeronautics and Space Administration Goddard Space Flight Center EOS Data and Operations System (EDOS) EDOS Processing Timeline 2

3. National Aeronautics and Space Administration Goddard Space Flight Center EDOS implemented three major latency enhancements in 2011, all focused on decreasing WAN transfer time to LZPF Removal of Reed-Solomon decoding bits (128 bytes/frame) – Release C5.4b – all sites – all missions – completed 2/1/2011 Benefit: 12% decrease in WAN transfer time Deploy 2ndTerra ebox-R at LZPF to eliminate WAN transfer time for MODIS – Release C5.4c – completed 3/1/2011 Benefit: Expedited MODIS RBDs and session-based PDS  White Sands Ebox-S configured for dual antenna feeds  Ebox-S configured for MODIS and non-MODIS processing  New Ebox-R added to LZPF for MODIS-only expedited processing  MODIS data receives highest priority QoS routing from White Sands Implementation of lossless compression/decompression and Terra PN decoding – Release C5.4d – all sites – all missions - completed 6/1/2011 Benefit: 20% average decrease in WAN transfer time EOS Data and Operations System (EDOS) Latency Enhancements Implemented 2011 3

4. National Aeronautics and Space Administration Goddard Space Flight Center EBOX-R TERRA LZPF Normal Spool Files All Terra Data Normal Product Delivery (All Terra Products) White Sands Complex EBox-S 1 EBox-S 2 Spare EBox-S QOS Matrix Switch STGTWSGT LZPF EDOS Pre-LANCE Configuration Normal Terra Ebox-R Processing at LZPF 4

5. National Aeronautics and Space Administration Goddard Space Flight Center 1 st EBOX-R TERRA LZPF 2 nd EBOX-R TERRA LZPF Normal Spool Files All Terra Data Except MODIS MODIS Spool Files Only High Priority QoS Normal Product Delivery (No MODIS Products) All MODIS Products (LANCE Product Delivery} Normal Configuration Without MODIS 1 st Terra ebox-R LZPF Delivery Configured for MODIS Only 2 nd Terra ebox-R LZPF Delivery Release C5.4c LANCE Configuration Second Terra Ebox-R for MODIS at LZPF White Sands Complex EBox-S 1 EBox-S 2 Spare EBox-S QOS Matrix Switch STGTWSGT LZPF 5

6. MODIS Baseline / Filter Test 2 Latency 6

7. EDOS Terra MODIS Latency Improvement 7 RLSS DurationAOS to RBD DeliveryAOS to PDS Delivery 47.5% overall Improvement 47.5% overall Improvement 51.6% overall Improvement 51.6% overall Improvement 39.7% overall Improvement 39.7% overall Improvement

8. EDOS Aqua MODIS Latency Improvement RLSS DurationAOS to RBD DeliveryAOS to PDS Delivery 8 24.1% overall Improvement 24.1% overall Improvement 37.8% overall Improvement 37.8% overall Improvement 29.2% overall Improvement 29.2% overall Improvement

9. National Aeronautics and Space Administration Goddard Space Flight Center Antarctic ground station support Planning EDOS interfaces at McMurdo with NEN for SMAP  Phase 1 demo with Ebox-S at White Sands (late 2012)  Phase 2 demo with Ebox-S at McMurdo (late 2013) Currently testing Ebox-S at KSAT’s Trollsat station (demo) Outbound network bandwidth limitation remains an issue EDOS is currently implementing a new “Hybrid” architecture also focused on decreasing WAN transfer time to LZPF Ebox-R level zero processing moved to open Ebnet Will support all current ground station closed Ebnet interfaces Where available, will support higher rate open network interfaces  Currently testing ASF connection over Internet 2  Currently testing White Sands over NISN corporate network Using encrypted tunnel to protect data over open networks Closed Ebnet connections will serve as backup BLZPF deployment in April/May timeframe LZPF deployment in June/July timeframe EOS Data and Operations System (EDOS) Planned Future Latency Enhancements 9

10. National Aeronautics and Space Administration Goddard Space Flight Center EOS Data and Operations System (EDOS) Hybrid Architecture 2012 ASF Open EBnet ERPS OPEN Ebnet Customers Internet Customers Closed EBnet Ebox-R Ebox-S Doors Internet 2 Encrypted High-Rate Science 10 External Users NISN Closed EBnet WAN High-Rate Science (Backup) NISN Corporate Network 100+ Mbps ~50 Mbps AS1 AS2