Date: Mon, 20 Aug 2007 15:27:09 -0300 (ADT) From: "Richard B. Langley" To: IGSMAIL Subject: [IGSMAIL-5632]: RINEX 3.00 Initiative Message-ID: Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-igsmail Precedence: bulk ****************************************************************************** IGS Electronic Mail 20 Aug 11:27:17 PDT 2007 Message Number 5632 ****************************************************************************** Author: Richard Langley Rodrigo Leandro Since October 2005, the IGS has been running an L2C test, with a number of organizations submitting data from L2C-capable receivers to a special directory at CDDIS. The preferred data format to be used for these submissions, thus far, is RINEX 2.11, which has the capacity for an explicit C2 observable. However, even RINEX 2.11 is incapable of supporting all of the data types currently available from some L2C-capable receivers. Only the new RINEX 3.00 format can handle all of the available observables. At UNB, for example, we are currently generating RINEX 3.00 files from Trimble NetR5 data with GPS C1C, C2P, C2X, L1C, L2P, L2X, S1C, S2P, and S2X; i.e., we have code, phase, and C/N0 measurements from both L2C and P(Y) tracking for the Block IIR-M satellites! And in any case, RINEX 3.00 will eventually become the de facto IGS data Standard (see IGSMAIL-5506: ). Therefore, in an effort to stimulate early interest in the IGS community to exchange data files in RINEX 3.00 format, so people writing code to create and/or read these files can improve their software and also to encourage the possible exchange of RINEX 3.00 support tools, such as converters, etc., we are setting up a RINEX 3.00 test area on the CDDIS server, with the kind support of Carey Noll. The directory can be found at . If sites wish to submit 3.00-formated files along with 2.11 files from the same receiver, even though the 2.11 files would be going to a different directory, they may wish to consider using a minor (and temporary) modification to the IGS/RINEX file-naming convention. At UNB, we decided to use the session index "3" to differentiate our 3.00 files from the 2.11 ones (which use 0, a-x indices), to clearly indicate they are 3.00-formatted files without the need to open them up to find this out. So, for example, we would have unb32310.07o for the daily 2.11 file and unb32313.07o for the daily 3.00 file. Clearly, this proposal cannot be used to differentiate hourly files which would require a more radical change to the file-naming convention. Files should be compressed using the latest Hatanaka compression routine (see IGSMAIL-5542: ) along with Unix compression. Contact Carey Noll if you would like to submit RINEX 3.00 data to the test directory. Initially, it is suggested that a few test files could be archived here. However, we have the option to continuously submit daily files here too. Thanks to Lou Estey, Werner Gurtner, and Angie Moore for useful discussions concerning this initiative. -- Richard Langley Rodrigo Leandro =============================================================================== Richard B. Langley E-mail: lang@unb.ca Geodetic Research Laboratory Web: http://www.unb.ca/GGE/ Dept. of Geodesy and Geomatics Engineering Phone: +1 506 453-5142 University of New Brunswick Fax: +1 506 453-4943 Fredericton, N.B., Canada E3B 5A3 Fredericton? Where's that? See: http://www.city.fredericton.nb.ca/ =============================================================================== ============================================================================== Rodrigo Leandro Trimble Geomatics and Engineering Group Trimble Terrasat GmbH Haringstr. 19 - 85635 Hoehenkirchen - Germany Tel.: +49 (0) 8102 7433 0 - Fax: +49 (0) 8102 7433131 E-mail: Rodrigo_Leandro@trimble.com ------------------------------------------------------------------------------ Geschaeftsfuehrer / Managing Directors: Dr.-Ing. Herbert Landau, Anders Rhodin Sitz der Gesellschaft / Registered office: Hoehenkirchen-Siegertsbrunn Registergericht/Registered Court: Amtsgericht Muenchen HRB 97034 USt.-ID.-Nr./VAT-ID-No. DE 129 477 752 ==============================================================================