Navigate the
GPS/MET Site!
Click the sextant
(requires Java)
GPS/MET Site Roadmap
- What's New? - The current status of the web site and the satellite
- Preliminary Report, July 1995 - An introduction to the project
- About the Data - Data availability, scope, and access
- Attitude Modes - Description of spacecraft steering
- Instrument Configuration - Description of instrument software settings
- Database Variables - List of database items and details about their precise interpretation
- Glossary - Terminology used on this web site
- Yellow pages - Links to similar or related web sites
- Group photo - The GPS/MET team
- Non-technical Intro - Introductory article from UCAR Highlights
- Reprocessing - Description of Summer, 1997 data reprocessing
- Schedule - Schedule for Summer, 1997 data reprocessing
- Occultation Profile - Graph Level 3 data from a single occultation
- Metadata plot - Graph metadata points across many occultations
- Occlist - View list of selected occultations and all associated metadata
- World Map - Plot occultation locations on a map of the world
- Narrow/Broaden the Search - Options to limit the set of occultations which
appear in the graphs and tables above:
- Set Date Range and Occultation ID - Set date range for occultations, and occultation id number
- Set Instrument Configuration - Set database search criteria pertaining to instrument software settings
- Set Raypath Geometry - Select occultations based on angles between satellites and the fiducial site
- Set Inversion Output Parameters - Select occultations based on parameters output by inversion software
- Set Availability Criteria - Select occultations based on whether level 3 processing has been done, whether it is available online, and whether it has been deemed high quality at stratospheric or tropospheric altitude.
- Set Latitude, Longitude - Select occultations based on latitude and longitude
- Set GPS status and fiducial sites - Select occultations based on GPS status -- Anti Spoofing, choice of occulted and reference satellite, fiducial site
- States and Transitions graph
- State of the mission over time, including data rate being taken,
attitude mode, and Anti Spoofing status
- Instrument Configuration - Table of software settings over time, with exact start and end times
- Attitude Modes - Table of attitude modes over time, with exact start and end times
- Anti-Spoofing status - Table of GPS A/S-off periods, with exact start and end times
- Outage Graph
- Graphical diagram of gaps in each type of level 0 data, as well as hardware and software resets
- Outages by Day - Detailed text diagram showing gaps in level 0 data, with links to their causes
- Outages by Cause - The number of outages of each type, over each month, and how much of each type of level 0 data was lost
- Status Reports - Browse daily reports written by the POCC operator on Microlab and GPS/MET instrument status. (click here to browse; to download them, see Status Reports under FTP Archives below)
- Set Date Range - Set data range for mission calendar graphs
- Daily Reports - Daily reports in GIF format on FASTEX-region occultations
- Data Browser - Jump directly to most recent temperature profiles in the FASTEX region
FTP Archives - Online FTP data archives (all levels), sorted by date
- Data products - File formats of data products
- Level 0 Data - Raw data from the orbiting instrument and ground fiducial sites
- Level 1 Data - RINEX files of GPS measurements
- Level 2 Data - Precise orbits, excess phase profiles, occultation metadata
- Level 3 Data - Output of inversion software -- temperature, pressure, etc. alongside level 2 information.
- Software tools - Software for uncompressing data files, for Windows, Mac, and UNIX
- Status reports - Day-by-day reports from OSC (click here to download them; to browse these reports see the Status Reports entry under Mission Calendar above)