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MGS Reception/Transmission Test: USAP 2003-2004 Field Season PowerPoint Presentation
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MGS Reception/Transmission Test: USAP 2003-2004 Field Season

MGS Reception/Transmission Test: USAP 2003-2004 Field Season

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MGS Reception/Transmission Test: USAP 2003-2004 Field Season

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  1. MGS Reception/Transmission Test:USAP 2003-2004 Field Season Matthew Lazzara AMRC/SSEC University of Wisconsin-Madison Mike Comberiate NASA Goddard Space Flight Center Pat Smith/NSF

  2. Project Objectives: • Test the reception of Aqua and/or Terra satellite direct broadcast data (sample passes) with the MGS • Process the data on station into scientifically usable data • Transmit the results and other derived products back to the United States via the TDRSS/MTRS link with MGS Pat Smith/NSF

  3. Objectives: • What it takes to accomplish this in terms of software, infrastructure, personnel, etc. • The timing to do these tasks • Identify any problems or obstacles to this process Software: • IMAPP • RT-STPS

  4. New Capabilities for MGS • The following new capabilities have been demonstrated but are not yet operational • MGS can now receive EOS Direct Broadcasts - Terra realtime (MODIS) - Aqua realtime (MODIS, AIRS, etc) - Available on McMurdo LAN for IMAPP to process • Can receive EOS-Aqua playbacks at 150Mbps - Contains same data over an orbit. • Can now return extremely large files to CONUS • - One-way link to White Sands • - Mail tapes to end user • Next day as scheduled in advance • Operational capabilities may require more resources

  5. TSI Frame Sync DQM 150Mbps RAID -Linux red hat with Timesys Kernel -For remote scheduling either 1)API using ports 5001 and 5002 2)API using ports 6001 and 6002 for NASA file transfer demonstration -Raid may also contain Science products, such as EOS Direct Broadcast movies -Data transfer via MTRS using internal s/w of RAID and/or via NASA custom “file transfer” 10-meter MGS MGS FY04 RAID to RAID transfers Closed IONet LTO-200 Robotic Tape Library NSF LAN SCSI X Band RF equipment External Site 200GB Tapes get shipped to Alaska SAR and/or sent via TDRS to WSC. Also available to local MCM users if needed. Closed IONet TDRS Science Data or Telemetry Data DATA OUTPUTS ONLY ECL/TTL CLOCK/DATA Clock MTRS2 RF Equipment Data White Sands Complex (WSC) MTRS Laptops -Win2000 -Control/status only of MTRS RF equipment Control/Status SCSI NSF McMurdo LAN LTO-200 Robotic Tape Library -McMurdo generated data products -remote scheduling via TSI software or NASA file transfer software NSF FW Tapes shipped to Alaska SAR or others with LTO tape drives To Internet SCSI LTO-200 Tape Drive TSI Frame Sync DQM 150Mbps RAID -VxWorks/Unix -For remote scheduling either 1)https GUI 2)API using ports 5001 and 5002 3)API using ports 6001 and 6002 for NASA file transfer demonstration - Interface to Science Users in MCM Is this EOS Data Processing Workstation - This computer is on MCM LAN - For security, user at McMurdo must use tape drive to retrieve/send any data to MGS RAID Internet A. Fortin 03/01/04

  6. Direct Broadcast from EOS • MGS now has the capability to receive the realtime, direct broadcast telemetry from EOS Terra or EOS Aqua • Key driver was to enable improved weather forecasting • MODIS/AIRS vertical Water Vapor profiles • Can easily meet the timeliness requirements for forecasting • Data is recorded from the RAID onto Tapes • Tapes are walked over to a computer on the Internet • Data is converted to Level 0 and ready for processing by IMAPP software on-site in McMurdo • Limited by availability of the single aperture

  7. High Volume Data Return to CONUS • Intended to enable data products generated in McMurdo to get to end users in CONUS • Polar Stereographic Movies (NSF and NASA users) • Also works for any spacecraft telemetry (NASA missions) • TDRS is available for next day data returns • Extremely high volume files are possible (125Mbps) • Telemetry Files or Data Files • Data received at White Sands (WSC) is taped and tapes mailed to end user • Alternate DVD-RW option in the works for ~4GB files • Eventual https access from WSC for lower volume files

  8. Detailed RAID to RAID Communications MGS RAID SCSI LTO-200 Tape Library RF connection for sending file data to WSC RAID Science Data or Telemetry Data DATA OUTPUTS ONLY ECL/TTL CLOCK/DATA TDRS TCP Client (port 6001) Data Clock MTRS2 RF Equipment Closed IONet WSC RF Equipment Science Data or Telemetry Data DATA OUTPUTS ONLY ECL/TTL CLOCK/DATA WSC RAID Firewall Clock Data -FTP Server for science access to data (https access eventually) -https server for access to scheduling software LTO-200 Tape Library SCSI TCP Server (port 6001) TCP connection for acknowledgements to MGS RAID, to maintain file transfers SPTR LAN (Internet) A. Fortin 03/01/04

  9. MGS FY04 - New Capabilities Summary • -MGS RAID has been activated and will be incorporated into the MGS automation. • -RAID enables 150Mbps data capture from EOS • -EOS direct broadcast collection is possible but limited by 10-m antenna availability. • -Data returns to CONUS at 125Mbps are working via TDRS. • - TDRSS not interested in meeting timeliness requirements but “next day” is okay • -NASA engineering effort now focused on RAID install at WSC and “Demonstration Mode” • of RAID to RAID data transfers (via MTRS) from MGS to WSC. • -MGS RAID must remain on Closed for MGS automation operations. • -We put WSC RAID on the Internet? • -Internet WSC RAID requires no waiver for RAID to RAID comms. • -WSC RAID is always listening for the MGS RAID to start a connection • -TCP comms between RAIDs is for acknowledgements only of data • through the TDRS link. • -Eventually will set up an https log-in for end users to access data on WSC Drive electronically, but that is constrained to low volume data files. • -A Tape mailing operation is underway for the very high volume data files • -RAIDs cannot perform a transfer of data when MGS RAID is receiving X-band pass. • -RAID will have software to allow remote scheduling. • -RAID will perform two types of transfers • -Telemetry transfers (raw data only, can use existing software on RAIDs) • -File transfers (allows any type of file for transfer, NASA built software) • -NASA operates the demonstration until NASA decides to turn over to operations. Comberiate 3/1/04

  10. Potential Upgrades if Funded • Add a Data-Stripping capability in MCM • Send low volume data to CONUS via Internet • Send bulk data to CONUS via TDRS next day • Add Second Aperture (fully automated) • Recommend a X/S/L Receive-only 12-ft system • Remove single point failure • Increase number of supports per day • Electronic access to WSC by end users • Better connectivity is a function of need

  11. Succeeded in getting the telemetry data with MGS Problems with preprocessing data & networking Didn’t finish the full end to end test – but learned some key issues… These and other issues can be dealt with. MGS network connected to the McMurdo LAN Improved computing (AMRC) for handling IMAPP processing & shear large volume of data Need to handle data flow back to the US: TDRSS/MTRS time (24x7?) Internet (Commercial or Internet 2?) connection from Windsands/Goddard to end users (NCAR, Wisconsin, etc.) Results and Considerations