Delivered-To: igs-rtwg@igscb.jpl.nasa.gov Message-ID: <5ACEEE96F4F9D41190790002A528B51E0AA7390E@s0-ott-x11.nrcan.gc.ca> From: "Caissy, Mark" To: "'igs-rtwg@igscb.jpl.nasa.gov'" Subject: [IGS-RTWG-13] Update and Upcoming Pilot Project Date: Mon, 30 Jan 2006 10:59:02 -0500 Content-Type: text/plain; charset="us-ascii" Sender: owner-igs-rtwg Precedence: bulk ****************************************************************************** IGS-RTWG Mail 30 Jan 07:59:21 PST 2006 Message Number 13 ****************************************************************************** Author: Mark Caissy Dear RTWG Members, I am writing to update you on the progress of the working group since the Focus Review Session held last spring in Vienna and to also provide you with information pertaining to an upcoming IGS Real-time Pilot Project. PROGRESS SINCE 2005 FOCUS REVIEW SESSION (compiled in early December) The emphasis has been in the following areas. 1) Expansion of the RT-network There are 46 active stations although global distribution remains an issue. Geoscience Australia made very significant progress in 2005. They are now contributing 16 stations from their extensive network on two continents. NRCan continues to deliver a number of stations from it's national network and JPL has most recently added Kokee Park (Hawaii) to the list of stations they are contributing ESA continues to deliver data reliably from several sites and they are planning to add to this list. GFZ's contributions were down during 2005 but they are fully committed to the initiative and intend to have a number of stations back online soon. The Royal Observatory of Belgium is now operating station BRUS using the RTIGS toolset and a number of stations from the BKG network that operate Javad receivers will soon be integrated. The same applies to the Swedish network. The following stations are currently available: (December 2005) Count IGS Status Agency RTIGS # 1 LPGS Active GFZ 403 2 MADR Active JPL 33 3 GOLD Active JPL 32 4 TIDB Active JPL 34 5 KOKB Active JPL 44 6 AMC2 Active USNO/JPL 67 7 DLFT Active TUD/JPL 71 8 KIRU Active ESOC 300 9 MAS1 Active ESOC 301 10 STJO Active NRCan 102 11 HLFX Active NRCan/GFZ 115 12 NRC3 Active NRCan 110 13 ALGO Active NRCan 107 14 CHUR Active NRCan 105 15 YELL Active NRCan 104 16 DRA2 Active NRCan 108 17 ALBH Active NRCan 103 18 WINN Active NRCan 106 19 EUR1 Active NRCan 123 20 FLIU Active NGS 200 21 MSSC Active NGS/USM 201 22 USNO Active USNO 700 23 RIO1 Active IBGE 702 24 IENG Active IEN 704 25 NRL1 Active NRL 705 26 BRUS Active ROB/NRCan 707 27 DHLG Active SOPAC/NRCan 708 28 WIDC Active SOPAC/NRCan 709 29 DWHZ Active Doug Hogarth 710 30 DARW Active GSAUS 600 31 TOW2 Active GSAUS 601 32 CEDU Active GSAus 602 33 YAR2 Active GSAUS 603 34 ALIC Active GSAUS 604 35 MAW1 Active GSAUS 605 36 DAV1 Active GSAUS 606 37 CAS1 Active GSAUS 607 38 COCO Active GSAUS 608 39 KARR Active GSAUS 609 40 MOBS Active GSAUS 610 41 STR1 Active GSAUS 612 42 XMAS Active GSAUS 613 43 TID1 Active GSAUS 614 44 BUR1 Active GSAUS 615 45 HOB2 Active GSAUS 616 46 STR2 Active GSAUS 619 2) Increased involvement within the IGS and the user communities. RTIGS data is being shared with 6 real-time centres including NRCan, JPL, COSMIC, TUV, UCAT and NOAA. Additionally, RTIGS data is being sent in real-time to 3 data centers (global/regional) (CDDIS, BKG and GA). The new Korean data center (KASI) has received and will soon be installing the archiving software (RTIGSA). RTIGS contributors are developing real-time applications that range from atmospheric modeling (NOAA, COSMIC, UCAT), rt clock estimation (NRCan, JPL), to assessing time and frequency transfer (IEN who recently presented a poster at PTTI). Integrity monitoring of the IGU product, a recommendation at the Berne meeting, is under development at TUV and they recently presented a poster on this topic at the December AGU conference. 3) Outreach Both the IEN and TUV posters are demonstrating to the broader community that the RTIGS prototype network is in place and is providing the opportunity to develop real-time applications based on this new infrastructure. I had the opportunity to participate in a panel session at the CGSIC meetings held prior to ION and I also made a presentation on the work of the RTWG during the CORS User Forum, also at the CGSIC meetings. The session had the theme "Towards Real-time". THE UPCOMING IGS REAL-TIME PILOT PROJECT The Real-time IGS has matured to a point where it is now time to move from the current prototype phase into a pilot project phase. The IGS Governing Board has given approval that a Real-time Pilot Project be initiated. IGS members from around the world are contributing real-time GPS data to the Real-Time IGS (RTIGS). Other IGS partners are receiving the RTIGS data stream and are developing real-time applications. At this time there are more than 45 active stations and RTIGS data is being shared with a number of real-time centers. Real-time centers are developing real-time applications that range from ionospheric and tropospheric modeling, to assessing station clocks and estimating GPS satellite clocks. The following agencies are receiving RTIGS data: 1) Technical University of Vienna 2) Technical University of Catalonia 3) University Corporation for Atmospheric Research 4) National Oceanic and Atmospheric Administration 5) Jet Propulsion Laboratory 6) Natural Resources Canada 7) ESA 8) CDDIS 9) Geoscience's Australia 10) BKG 11) KASI (installing archiving software) The following list of software is available to RTIGS users/contributors: 1) Real Time GPS Reader for AOA /Ashtech / (Javad soon to be released). This software streams real-time data to an UDPRelay. 2) UDPRelay - distributes data in real time (data can be encrypted if required) 3) RTIGS Archiver (RTIGSA) - archives the RTIGS data stream by creating flat files 4) TEQC translates RTIGS data into RINEX format - works with files from RTIGSA. 5) RTIGS Multicast Receive (RTIGSMR) - Provides a Real-time Application Frame Work (provides application developers with a framework within which to embed their code) The protocols and tools required to share real-time GPS data have been developed over that last few years. IGS members have shown significant support for the RTIGS prototype by contributing data from over 45 stations. Many IGS agencies have developed prototype applications that use the RTIGS data streams. Moving to a Real-time Pilot Project is a logical next step. It is foreseen that the Pilot Project will include: 1) A broad based call for participation 2) A level of commitment from participants The Pilot Project will target a number of key areas and is expected to: 1) Result in an improved network of global stations. Reference frame stations will be targeted. 2) Increase the reliability of the real-time data streams. 3) Involve global data centers and analysis centers in real-time activities. 4) Result in the development of real-time IGS products including real-time satellite clocks I would very much like to hear your comments on this and other real-time initiatives. Regards Mark Caissy Chair IGS Real-time Working Group -- a special thanks to Ken Macleod for assisting in the preparation of this email