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GPS/MET Data

Where to find GPS/MET Data

GPS/MET Data is available to registered users in three forms:

Online for browsing

Choose the "View Data" button to go to a set of web pages which query a database containing metadata about each occultation observed. See the list of metadata variables. Relevant level 2 and 3 files can be downloaded. (see below for descriptions of data "levels"). Choose "Mission Calendar" to examine the status of the satellite over time.

Online for download

Choose the "FTP Archive" button to access the FTP site containing raw data and intermediate files which are not accessible directly through the "View Data" section.


About GPS/MET data

The following data products are available via ftp or the web to registered users in the scientific community:

Level 3 Data Products: [More Details] [Archive] [Search Database]

  1. CMP file -- Contain decimated GPS/MET level 3 data for an entire day, alongside profiles at the same time and location taken from other data sources. These files are in NetCDF format. GPS/MET data is combined with data from ancillary sources to compensate for water vapor's effect on refractivity.
  2. Tem file -- ASCII-formatted file containing the same variables as the Megafile, but limited to the range of 0 to 60 km altitude, and decimated to 200 meters.

Also available on the ftp site:

Status Reports

Daily status reports prepared by Orbital Sciences Corporation (OSC) and by staff at the Payload Operations Control Center (POCC). [Browse]

Tools

Macintosh, Windows, and UNIX software for uncompressing data files