1 / 10

Agenda

EOS Data and Operations System (EDOS) Latency Enhancements. Agenda. EDOS Processing Timeline EDOS Latency Enhancements 2011 Plans for Future Latency Enhancements. Terri Wood NASA EDOS Project Manager. Bruce McLemore MOMS EDOS Project Manager February 8, 2012.

emile
Download Presentation

Agenda

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. EOS Data and Operations System (EDOS) Latency Enhancements Agenda • EDOS Processing Timeline • EDOS Latency Enhancements 2011 • Plans for Future Latency Enhancements Terri Wood NASA EDOS Project Manager Bruce McLemore MOMS EDOS Project Manager February 8, 2012

  2. EOS Data and Operations System (EDOS) EDOS Processing Timeline 2

  3. EOS Data and Operations System (EDOS) Latency Enhancements Implemented 2011 • 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 3

  4. EDOS Pre-LANCE Configuration Normal Terra Ebox-R Processing at LZPF WSGT STGT White Sands Complex Matrix Switch EBox-S 2 Spare EBox-S EBox-S 1 QOS Normal Spool Files All Terra Data EBOX-R TERRA LZPF Normal Product Delivery (All Terra Products) LZPF 4

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

  6. MODIS Baseline / Filter Test 2 Latency 6

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

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

  9. EOS Data and Operations System (EDOS) Planned Future Latency Enhancements • 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 9

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

More Related