Supporting Information for Global Navigation Satellite System (GNSS) Data and Products from NASA CDDIS
This dataset consists of supporting information for use of ground-based Global Navigation Satellite System (GNSS) data and products from the NASA Crustal Dynamics Data Information System (CDDIS). GNSS provide autonomous geo-spatial positioning with global coverage. GNSS data sets from ground receivers at the CDDIS consist primarily of the data from the U.S. Global Positioning System (GPS) and the Russian GLObal NAvigation Satellite System (GLONASS). Since 2011, the CDDIS GNSS archive includes data from other GNSS (Europe’s Galileo, China’s Beidou, Japan’s Quasi-Zenith Satellite System/QZSS, the Indian Regional Navigation Satellite System/IRNSS, and worldwide Satellite Based Augmentation Systems/SBASs), which are similar to the U.S. GPS in terms of the satellite constellation, orbits, and signal structure. More information about these data and products are available on the CDDIS website at https://cddis.nasa.gov/Data_and_Derived_Products/GNSS/GNSS_data_and_product_archive.html.
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| Spatial Extent: | n/a |
Data Format(s): | Archive: ASCII |
| Temporal Extent: | Platform(s): | Beidou, Galileo, GLONASS, GPS, GROUND STATIONS, QZSS, IRNSS, SBAS | |
| Data Center(s): | NASA/GSFC/SED/ESD/GGL/CDDIS | Instrument(s): | Beidou P, Galileo P, GLONASS P, GPSP, GNSS RECEIVER, QZSS P, IRNSS P, SBAS P |
| Version: | 1 | ||
- GENERAL DOCUMENTATION: https://cddis.nasa.gov/Data_and_Derived_Products/GNSS/GNSS_data_and_product_archive.html, URL for more information about GNSS data and products
Collection Information
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Purpose
The GNSS receivers collect the signals from orbiting satellites to determine their location in three dimensions and calculate precise time. GNSS receivers detect, decode, and process both pseudorange (code) and phase transmitted by the GNSS satellites. The satellites transmit the ranging codes on two or more radio-frequency carriers, allowing the locations of GNSS receivers to be determined with varying degrees of accuracy, depending on the receiver and post-processing of the data. The receivers also calculate current local time to high precision facilitating time synchronization applications. -
DOI
Not Applicable
- Search for granules from this collection
Data Identification
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Processing Level
NA
- Quality
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Collection Progress
Active
Data Dates
| Creation |
Acquisition Information
Projects
| Project Short Name | Campaigns | Project Dates |
|---|---|---|
| IGS | No campaigns listed. | Start: 1992-01-01 |
Temporal Information
Temporal Keywords
- 1 second - < 1 minute
Spatial Information
Location Keywords
- GEOGRAPHIC REGION
- GLOBAL
Data Centers
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NASA/GSFC/SED/ESD/GGL/CDDIS
ARCHIVER, DISTRIBUTORCrustal Dynamics Data Information System, Geodesy and Geophysics Laboratory, Earth Sciences Division, Sciences and Exploration Directorate, Goddard Space Flight Center, NASA
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NASA GSFC
Code 61A
Greenbelt, Maryland 20771
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Data Contacts
There are no listed data contacts for this collection.
Archive And Distribution Information
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Format: ASCII
Format Type: Native
Average File Size: 50.0 KB