Data By Site:
This utility provides a listing of the rinex obs, met, and nav GPS data
available on the SOPAC archive for the site(s) provided, over the time period specified.
Select the begin and end dates and sites of interest.
Click the "Get Data by Site" button, and a listing of available sites and their files is displayed.
Observation files are listed as a file completion percentage (1-100%).
Navigation and meteorological files display "N" and "M", respectively.
'-' indicates that no file is available.
Click on the site name for site information. Select the file completion percentage value (or letter) to view/download the respective file.
Data by Date:
This utility lists all data available for the single day and data type provided by the user.
Select a data type, day and year
(if you do not know the day of year for the month/day you are looking for,
use the "Convert Date" Utility link).
Click on 'Get Data by Date' to see a listing of files for the day/data type selected.
Then select a file for viewing/download.
Please note that for data types "gfiles", "hfiles", and "products",
the day/year selected is converted to a GPS week and all files for that week/data type are displayed.
SOPAC archives RINEX observation (rinex/obs), navigation (nav), and meteorological (met) files
from arrays around the world.
In addition, SOPAC provides several GPS satellite orbit files and associated products.
The "products" selection includes (note: YYYY=year, DDD=day-of-year, WWWW=gps weeek, D=day-of-week, Y=year in decade, HH=hour-of-day):
- sp3 precise ephemeris orbits in sp3 format (e.g., sioWWWWD.sp3.Z)
- earth orientation files (e.g., sioWWWWD.erp.Z)
- sinex files (e.g., sioWWWWD.snx.Z
- analysis summary files (e.g., sioWWWW7.sum.Z)
- clock files derived by a variety of analysis centers
Orbits are available from IGS and all IGS analysis centers (sio, jpl, cod, ngs, emr, usn, cod and gfz).
Filenaming conventions use the following, where 'xx' represents the first two letters of the IGS analysis center:
- xxo: final orbits, available within 10 days after the end of the UT day (e.g., sioWWWWD.sp3.Z)
- xxr: rapid orbits, available after 17 hours (e.g., sirWWWWD.sp3.Z)
- xxu: ultra-rapid orbits, provided every three hours (e.g., siuWWWD_HH.sp3.Z)
The "gfiles" selection lists gfiles (e.g., gpggaY.DDD.Z), which are orbit files that can only be used in GAMIT GPS data processing.
The "hfiles" selection lists the official GAMIT solution exchange file(s).
This contains coordinates, orbits and the full variance-covariance matrix.
It can be used as pseudo-observations into the GLOBK package.