Global Navigation Satellite System (GNSS) Analysis Center Final Clock Product (daily files, generated weekly) from NASA CDDIS
This derived product set consists of Global Navigation Satellite System Final Satellite and Receiver Clock Product (30-second granularity, daily files, generated weekly) 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. Analysis Centers (ACs) of the International GNSS Service (IGS) retrieve GNSS data on regular schedules to produce GNSS satellite and ground receiver clock values. The IGS Analysis Center Coordinator (ACC) uses these individual AC solutions to generate the official IGS final combined satellite and receiver clock products. The AC clock products consist of daily station and satellite clock solution files, generated on a weekly basis with a delay of approximately 10 days (from the last day of the week). All satellite and receiver clock solution files utilize the clock RINEX format and span 24 hours from 00:00 to 23:45 UTC.
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| Spatial Extent: | Bounding Rectangle: N: 90.0 S: -90.0 E: 180.0 W: -180.0 |
Data Format(s): | n/a |
| 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, QZSS P, IRNSS P, SBAS P |
| Version: | 1 | ||
- GENERAL DOCUMENTATION: https://cddis.nasa.gov/Data_and_Derived_Products/GNSS/GNSS_product_holdings.html, URL for more information about GNSS derived products
Collection Information
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Purpose
The IGS final satellite and receiver clock products (30-second granularity) can be used to determine precise coordinates of the observing stations, gravity field parameters, and Earth orientation parameters. The IGS final products are the basis for the IGS reference frame and are intended for those applications demanding high consistency and quality. -
DOI
10.5067/GNSS/GNSS_IGSACCLK_001
http://dx.doi.org/
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Data Identification
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Processing Level
2
Derived products from GNSS data
- Quality
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Collection Progress
Active
Data Dates
| Creation |
Related URLs
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.