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Geodetics Data Access and Tools
NASA has geodetics datasets that help researchers characterize the shape of Earth and the motion of its components. Access a range of data and data tools such as AppEEARS, Worldview, and Giovanni to make the most of geodetics data.
Geodetics Datasets
| Dataset Sort descending | Version | Platform | Instrument | Temporal Extent | Spatial Extent | Spatial Resolution | Data Format |
|---|---|---|---|---|---|---|---|
| Satellite Laser Ranging (SLR) Earth Orientation Parameters (EOP) Position Products from NASA CDDIS | 1 | ETALON-1, ETALON-2, GROUND STATIONS, LAGEOS-1, LAGEOS-2 | LASER REFLECTOR, SLR Station | 1976-05-16 to Present |
N: 90 S: -90 E: 180 W: -180 |
||
| Satellite Laser Ranging (SLR) ILRS Analysis Center (AC) Orbit Product (weekly files, generated weekly) from NASA CDDIS | 1 | LAGEOS-1, LAGEOS-2, ETALON-1, ETALON-2, GROUND STATIONS | LASER REFLECTOR, SLR Station | 2016-01-01 to Present |
N: 90 S: -90 E: 180 W: -180 |
extended standard product-3 (SP3) | |
| Satellite Laser Ranging (SLR) ILRS Analysis Center (AC) Position and Earth Rotation Parameters (ERP) Product (weekly files, generated daily) from NASA CDDIS | 1 | LAGEOS-1, LAGEOS-2, ETALON-1, ETALON-2, GROUND STATIONS | LASER REFLECTOR, SLR Station | 1976-05-16 to Present |
N: 90 S: -90 E: 180 W: -180 |
Software Independent Exchange (SINEX) | |
| Satellite Laser Ranging (SLR) ILRS Combination Center (CC) Orbit Product (weekly files, generated weekly) from NASA CDDIS | 1 | LAGEOS-1, LAGEOS-2, ETALON-1, ETALON-2, GROUND STATIONS | LASER REFLECTOR, SLR Station | 2016-01-01 to Present |
N: 90 S: -90 E: 180 W: -180 |
extended standard product-3 (SP3) | |
| Satellite Laser Ranging (SLR) ILRS Combination Center (CC) Station Position and Earth Rotation Parameters (ERP) Product (weekly files, generated daily) from NASA CDDIS | 1 | LAGEOS-1, LAGEOS-2, ETALON-1, ETALON-2, GROUND STATIONS | LASER REFLECTOR, SLR Station | 1976-05-16 to Present |
N: 90 S: -90 E: 180 W: -180 |
Software Independent Exchange (SINEX) | |
| Satellite Laser Ranging (SLR) ILRS Orbit Prediction Product (multi-day, daily, and sub-daily files) from NASA CDDIS | 1 | LAGEOS-1, LAGEOS-2, ETALON-1, ETALON-2, GROUND STATIONS | LASER REFLECTOR, SLR Station | 1988-01-01 to Present |
N: 90 S: -90 E: 180 W: -180 |
CPF format (current), TIV format (prior to 2012) | |
| Satellite Laser Ranging (SLR) ILRS Report Exploder distributing regular mission related reports. | 1 | SATELLITES | 1983-01-01 to 2021-12-31 |
N: 90 S: -90 E: 180 W: -180 |
SINEX | ||
| Satellite Laser Ranging (SLR) International Laser Ranging Service (ILRS) Data Handling Files | 1 | SATELLITES | 1976-01-01 |
N: 90 S: -90 E: 180 W: -180 |
SINEX | ||
| Satellite Laser Ranging (SLR) International Laser Ranging Service (ILRS) Eccentricity Files from NASA CDDIS | 1 | SATELLITES | 1968-01-01 |
N: 90 S: -90 E: 180 W: -180 |
SINEX | ||
| Satellite Laser Ranging (SLR) Observation Data Summary (full-rate, monthly files) from NASA CDDIS | 1 | SATELLITES | NOT APPLICABLE | 1976-01-01 |
N: 90 S: -90 E: 180 W: -180 |
CRD, ILRS/CSTG | |
| Satellite Laser Ranging (SLR) Predictions from NASA CDDIS | 1 | ADEOS-1, ADEOS-2, AJISAI, ALOS, ANDE CASTOR, ANDE POLLUX, ANDE-RR ACTIVE, ANDE-RR PASSIVE, BE-C, BLITS, CHAMP, COMPASS-M1, CRYOSAT-1, CRYOSAT-2, DIADEM-1C, DIADEM-1D, ENVISAT, ERS-1, ERS-2, ETALON-1, ETALON-2, ETS-8, GEOS-1, GEOS-2, GEOS-3, GFO-1, GFZ-1, GIOVE-A, GIOVE-B, GLONASS, GOCE, GP-B, GPS-35, GPS-36, GRACE-A, GRACE-B, GROUND STATIONS, HY-2A, ICESAT-1, JASON-1, JASON-2, KOMPSAT-5, LAGEOS-1, LAGEOS-2, LARETS, LRE, LRO, METEOR 2-21, METEOR-2, Meteor-3, Meteor-3M, MSTI-2, OICETS, PROBA-2, QZS-1, RADIOASTRON, REFLECTOR, RESURS-01, SEASAT-1, SOHLA-1, STARLETTE, STARSHINE, STELLA, STSAT-2A, STSAT-2B, SUNSAT, TANDEM-X, TERRASAR-X, TIPS, TIPS-NORTON, TIPS-RALPH, TOPEX/POSEIDON, WESTPAC, ZEIA | RETROREFLECTOR ARRAY, LASER RANGING STATION | 1998-01-01 to Present |
N: 90 S: -90 E: 180 W: -180 |
||
| Satellite Laser Ranging (SLR) Satellite Orbit Products from NASA CDDIS | 1 | GROUND STATIONS | SLR | 1992-01-01 to Present |
N: 90 S: -90 E: 180 W: -180 |
Standard Product 3 (SP3) | |
| Suomi-NPP VIIRS Level-1A Geolocation Data, version 2 | 2 | Suomi-NPP | VIIRS | 2012-01-02 to Present |
N: 90 S: -90 E: 180 W: -180 |
netCDF-4 | |
| Terra MODIS Level-1A Geolocation Data, version 1 | 1 | Terra | MODIS | 2000-02-24 to Present |
N: 90 S: -90 E: 180 W: -180 |
netCDF-4 | |
| Very Long Baseline Interferometry (VLBI) Auxiliary Files from NASA CDDIS | 1 | GROUND-BASED OBSERVATIONS | VLBI Station | 2005-01-01 |
N: 90 S: -90 E: 180 W: -180 |
ASCII | |
| Very Long Baseline Interferometry (VLBI) Celestial Reference Frame (CRF) solution products from NASA CDDIS | 1 | GROUND-BASED OBSERVATIONS | VLBI Station | 2002-01-01 to Present |
N: 90 S: -90 E: 180 W: -180 |
IERS CRF | |
| Very Long Baseline Interferometry (VLBI) Daily Intensive Solution Product (DSNI) | 1 | GROUND STATIONS | VLBI Station | 2007-08-28 to 2023-12-05 |
N: 90 S: -90 E: 180 W: -180 |
SINEX | |
| Very Long Baseline Interferometry (VLBI) Daily SINEX Independent Solution product (DSNX) from NASA CDDIS | 1 | GROUND STATIONS | VLBI Station | 1984-02-03 to 2020-11-03 |
N: 90 S: -90 E: 180 W: -180 |
SINEX | |
| Very Long Baseline Interferometry (VLBI) Data and Products Supporting Information from NASA CDDIS | 1 | GROUND STATIONS | RF ANTENNA | 1979-01-01 to Present |
N: 90 S: -90 E: 180 W: -180 |
ASCII | |
| Very Long Baseline Interferometry (VLBI) data from NASA CDDIS | 1 | GROUND STATIONS | VLBI Station | 1979-08-03 to Present |
N: 90 S: -90 E: 180 W: -180 |
||
| Very Long Baseline Interferometry (VLBI) Earth Orientation Parameters (EOP) Products from NASA CDDIS | 1 | GROUND-BASED OBSERVATIONS | VLBI Station | 2000-01-01 to Present |
N: 90 S: -90 E: 180 W: -180 |
Text | |
| Very Long Baseline Interferometry (VLBI) Intensive Earth Orientation Parameter (EOP-I) Series products from NASA CDDIS | 1 | GROUND-BASED OBSERVATIONS | VLBI Station | 2005-01-01 |
N: 90 S: -90 E: 180 W: -180 |
ASCII | |
| Very Long Baseline Interferometry (VLBI) Positions Products from NASA CDDIS | 1 | GROUND STATIONS | VLBI Station | 1980-01-01 to Present |
N: 90 S: -90 E: 180 W: -180 |
Software INdependent EXchange (SINEX) | |
| Very Long Baseline Interferometry (VLBI) Session Earth Orientation Parameter Series (EOP-S) Product from NASA CDDIS | 1 | GROUND STATIONS | VLBI Station | 2002-02-13 to 2023-12-11 |
N: 90 S: -90 E: 180 W: -180 |
EOP Transfer Format | |
| Very Long Baseline Interferometry (VLBI) Tropospheric Parameters (TROP) products from NASA CDDIS | 1 | GROUND STATIONS | VLBI Station | 2001-12-30 to Present |
N: 90 S: -90 E: 180 W: -180 |
EOP Transfer Format |
Featured Geodetics Observation Method: GNSS
A Global Navigation Satellite System (GNSS) is a space geodesy technology that provides autonomous geospatial positioning around the world. One such system is the U.S. Global Positioning System (GPS), which is made up of 24 satellites, each traveling in a 12-hour orbit. A similar system is the GLObal NAvigation Satellite System (GLONASS) constellation consisting of 24 satellites. Each system is designed so that multiple satellites are within range of any point on Earth in order to precisely determine its location.
GNSS data can used to determine location and positioning around Earth as well as to study geophysics, the motions of tectonic plates and their displacements due to earthquakes, Earth orientation, and atmospheric properties among many other things.
GNSS data can used to determine location and positioning around Earth as well as to study geophysics, the motions of tectonic plates and their displacements due to earthquakes, Earth orientation, and atmospheric properties among many other things.
Join us on Wednesday, July 22, 2015 at 2pm ET to learn how to discover and access the real-time Global Navigation Satellite System (GNSS) data!
Join us to learn more about Global Navigation Satellite System (GNSS) radio occultation science and applications! We will highlight science impacts in the areas of numerical weather prediction, forecasting cyclone genesis, and space weather.
Join us on Sept. 28 to learn about the NASA Making Earth System Data Records (ESDR) for Use in Research Environments (MEaSUREs) Extended Solid Earth Science ESDR System (ESESES) project, whose Global Navigation Satellite System (GNSS)-derived data products enable research on tectonic motion, crustal deformation, earthquakes, tsunamis, sea level rise, extreme weather, and more!
This update to NASA's Crustal Dynamics Data Information System (CDDIS) archive makes accessing all RINEX data easier and more transparent for the Global Navigation Satellite System (GNSS) user community.
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