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Active and Passive database search help

This page contains instructions on the practical use of the Passive Database search facility (steps 1-4) and the Active RINEX Data download pages (steps 1-13).  For details on what Rinex data is, or how it is used, please visit our information pages.

  1. Enter a Search location. This may be in one of three formats:
    • A national Grid reference. For example - SU1212
    • National Grid Eastings and Northings. For example - 412000 111999.85
    • ETRS89 GPS co-ordinates in the format Latitude Degree, Min, Seconds, Longitude, Longitude Degree, Min, Second. For Example - 50, 54, 26.42, W, 1, 49, 50.49
  2. Select the location type. This MUST tie in with the format of the search location. For example, if SU1212 has been entered, "National Grid Reference" must be selected.
  3. You may either search for a specific number of Active Stations, or for all the active stations within a radius. Please select with type of search you would like to do.
  4. Enter either the number of stations you would like the search to return, or the search radius in kilometres.
  5. Next, select the day you would like to download data for. This is in for format Day/Month/Year
  6. Pick a start time for your data. 00:00 is midnight.
  7. Pick an end time for your data.
  8. Pick a name for your project. This will be the name of the Zip file which is downloaded.
  9. Click the "Search" button.
  10. If your search area does not have any stations, a message asking you to broaden you search will be displayed. If there are suitable stations, the station name and the distance from your search location will be displayed.
  11. If the stations displayed do not have any data for the time you selected, "N/A" will be displayed. If data is available, a check box will appear. This is checked="checked" by default. At least one box must be selected="selected" in order to proceed.
  12. If there is data available to download, a "Process" button will appear. Click this to proceed.
  13. This page will change, and "Download Zip file" link will appear. Click this to download the data.

 

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