From R. Wed Jul 21 16:20:15 1993 From: R. (R.) Date: 21 JUL 1993 16:20:15 Subject: [IGSMAIL-290] GPS NANUs in CANSPACE Archives Message-ID: IGS Electronic Mail 21-JUL-1993 16:20:15 Message Number 290 *********************************************************************** >From: R. Langley Subj: GPS NANUs in CANSPACE Archives ------------------------------------ Thanks to Francine Vannicola of the U.S. Naval Observatory, the DoD Notice Advisories to Navstar Users (NANUs) issued since 16 November 1984 are now available in the CANSPACE file archives. In the "pseudo- directory" PUB.CANSPACE.GPS.NANUS, you will find two "directories" (actually partitioned data sets): FULLTEXT SUBLINES Within each directory, there is a separate file for each year, e.g., Y92. The FULLTEXT files include the complete text of the NANUs whereas SUBLINES just lists the subject lines for each NANU. For years 1984, 1985, and 1986 there are no SUBLINES files presently available. For 1993, only SUBLINES files are presently available. They are called Y93Q1 for the first quarter of the year and Y93Q2 for the second quarter. The full text file for 1993 will be added at the end of the year. In the meantime, the text of 1993 NANUs is available from the CANSPACE message archives. To access the CANSPACE file archives, anonymously ftp to unbmvs1.csd.unb.ca (131.202.1.2). Immediately do a change directory to PUB.CANSPACE (there is no default directory). These NANU archives may be helpful in trying to identify problems when re-processing old GPS data sets or in researching the development or historical performance of GPS. ============================================================================== Richard B. Langley Internet: LANG at UNB.CA or SE at UNB.CA Geodetic Research Laboratory BITnet: LANG at UNB or SE at UNB Dept. of Surveying Engineering Phone: (506) 453-5142 University of New Brunswick FAX: (506) 453-4943 Fredericton, N.B., Canada E3B 5A3 Telex: 014-46202 ==============================================================================