ETL 1110-1-184
01 Oct 1998
the observation or navigation file).
(2) JOIN24PC. This program is used to join multiple
decompressed hourly observation or navigation files into one
session file to be used in the post-processing software. The
user must join both the observation files into one file and the
navigation files into another file. To join several files
together, place all the files with the program into the same
directory then type join24pc 1stfile newfile. The program will
concatenate all the files starting with the 1stfile and create
the file newfile.
(3) INTERPO. This program takes a standard RINEX file and
generates another RINEX file with interpolated GPS satellite
observations at a user-specified rate. This program should only
be used for code phase positioning.
d. Archived Data. Data before the 31-day on-line period
can be obtained by a special request to NGS through the Data menu
on the CORS Homepage. It is important to note that 5-second data
is decimated to 30-second data before being archived.
B-5
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