From: Jon Clarke Date: 30 Apr 1999 18:04:54 Subject: [IGEXMail-0318] NPLC update Date: Fri, 30 Apr 1999 16:40:27 +0100 Content-Type: multipart/mixed; boundary="925486827=_FTP_MSG_SVC_=41" Content-Transfer-Encoding: 7bit Sender: owner-igexmail@ensg.ign.fr Precedence: bulk ****************************************************************************** IGEX Electronic Mail 30-Apr-1999 18:04:54 Message No 0318 ****************************************************************************** Author: Jon Clarke Subject: NPLC update ---------------------------------------------------------------------- Your mail reader is not using the MIME attachment standard. To read all of this message, use a MIME V1.0 compliant reader. Some parts of this message may be in a human readable form. ---------------------------------------------------------------------- --925486827=_FTP_MSG_SVC_=41 Content-Type: text/plain; charset=US-ASCII; X-MAPIextension=".TXT" Content-Transfer-Encoding: 7bit Dear Colleagues, the 3S Navigation R100-40T receiver NPLC's software was upgraded to version 5.3 today. Also the GPS and Glonass schedules were updated to numbers 32 and 7 respectively: my apologies for the delay in implementing these schedules. The option to calculate time transfer data from Glonass P2 was activated. And finally, our previously faulty sixth Glonass P card, which had been repaired, was replaced. The receiver is now running again with all channels, and appears to be working correctly. The IGEX log file for our collocated dual frequency GPS receiver NPLB is now available (apologies also for the delay in its preparation). During the recent visit of the BIPMA calibrating receiver, the offsets from UTC(NPL) of each of the inputs of our receivers were measured: these are now included in the IGEX log files and in the NPLC CCTF files, as is the NPLC antenna cable delay. The CCTF data from NPLC is available from the anonymous ftp site ftp.npl.co.uk, directory pub/time/glonass (c.f. attached file Instruc3.txt). The NPLB Z-compressed compact RINEX data is similarly available from ftp.npl.co.uk, directory pub/gpsphase Also on both the NPLB and NPLC ftp sites are summaries of the receivers' logbooks, showing the main events affecting them, and a .GIF diagram of the reference time signal distribution system at NPL, showing the links between UTC(NPL), our two-way earth station Satre modem, NPLB geodetic GPS receiver, and NPLC GPS/Glonass receiver. I hope these items are of some use and interest. Regards, Jon Clarke -------------------------------------------------------------------- Mr Jon Clarke Time and Frequency, e-mail: jon.clarke@npl.co.uk Centre for Time Metrology, tel: +44 (0) 181 943 6548 National Physical Laboratory, fax: +44 (0) 181 943 7138 Queens Road, Teddington, TW11 0LW, U.K. -------------------------------------------------------------------- --925486827=_FTP_MSG_SVC_=41 Content-Type: text/plain; charset=US-ASCII; name="Instruc3.txt" Content-Transfer-Encoding: 7bit INSTRUCTIONS FOR ACCESSING CTM FTP ARCHIVES ------------------------------------------- Directions on using our Ashtech data FTP archive ---------- -- ----- --- ------- ---- --- ------- This site holds our Ashtech Z12T geodetic GPS receiver observation files, in UNIX-compressed compact RINEX format. Connect to server: ftp.npl.co.uk Username: anonymous Password: [your e-mail address] Move to our archive directory: cd pub/gpsphase Then there are various useful commands, such as: List commands: help List contents: dir obtain file: get [filename - this is case sensitive] To leave: quit Other data available via anonymous ftp ----- ---- --------- --- --------- --- 3S Nav R100-40T common view time transfer data: pub/time/glonass GPS common view time transfer data (this is used for our routine link with BIPM to contribute UTC(NPL) to UTC(BIPM)): pub/time/gps Please contact me if you have any difficulties. Regards, Jon Clarke, 1998-02-24. -------------------------------------------------------------------- Mr Jon Clarke Time and Frequency, e-mail: jon.clarke@npl.co.uk Centre for Time Metrology, tel: +44 (0) 181 943 6548 National Physical Laboratory, fax: +44 (0) 181 943 7138 Queens Road, Teddington, TW11 0LW, U.K. -------------------------------------------------------------------- --925486827=_FTP_MSG_SVC_=41--