Table · collection · 1976
Satellite Laser Ranging (SLR) ILRS Analysis Center (AC) Position and Earth Rotation Parameters (ERP) Product (weekly files, generated daily) from NASA CDDIS
Listed in NASA Earthdata CMR and NASA Data Portal — shown once because both records carry DOI 10.5067/slr/slr_ilrsacsnx_001
This derived product set consists of Satellite Laser Ranging Analysis Center (AC) Station Position plus ERP Product (daily files, generated daily) from the NASA Crustal Dynamics Data Information System (CDDIS).
Description
SLR provides unambiguous range measurements to mm precision that can be aggregated over the global network to provide very accurate satellite orbits, time histories of station position and motion, and many other geophysical parameters.
SLR operates in the optical region and is the only space geodetic technique that measures unambiguous range directly. Analysis of SLR data contributes to the terrestrial reference frame, modeling of the spatial and temporal variations of the Earth's gravitational field, and monitoring of millimeter-level variations in the location of the center of mass of the total Earth system (solid Earth-atmosphere-oceans). In addition, SLR provides precise orbit determination for spaceborne radar altimeter missions.
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It provides a means for sub-nanosecond global time transfer, and a basis for special tests of the Theory of General Relativity. Analysis Centers (ACs) of the International Laser Ranging Service (ILRS) retrieve SLR data on regular schedules to produce precise station positions and velocities for stations in the ILRS network. The ACs also generate Earth Orientation Parameters from the SLR data.
These individual AC solutions are used by the ILRS Analysis Center Coordinators (ACC) to generate the official ILRS final combined station position plus ERP products, as well as backup combination. The final products are considered the most consistent and highest quality ILRS solutions; they consist of daily station position/ERP files, generated on a daily basis with a typical delay of 2 days. All station position/ERP solution files utilize the Software Independent Exchange (SINEX) format and span 1 day from 00:00 to 23:45 UTC.
Links
Get the data
- Resource doi.org/10.5067/slr/slr_ilrsacsnx_001 ↗
URL for more information about SLR derived products
landing page · download · DOI / persistent id · from NASA CMR, data nasa gov
- Resource earthdata.nasa.gov/data/space-geodesy-techniques/slr/data-products-holdings ↗
URL for more information about SLR derived products
documentation · download · from NASA CMR, data nasa gov
- Original Metadata cmr.earthdata.nasa.gov/search/concepts/C1604286127-CDDIS.iso19115 ↗
download · from data nasa gov
- cddis.nasa.gov /archive/slr/products ↗
URL for retrieval of SLR derived products through https
download · from NASA CMR
Where it is published
- NASA Data Portal dataset page data.nasa.gov/dataset/satellite-laser-ranging-slr-ac-station-position-and-er… ↗
landing page · from data nasa gov
Catalogue records · 3
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C1604286127-CDDIS.umm_json ↗
metadata API · from NASA CMR
- CKAN API data.nasa.gov/api/3/action/package_show?id=c8cdedb2-68d9-4bd1-8b16-20fa992e8… ↗
metadata API · from data nasa gov
- CMR record cmr.earthdata.nasa.gov/search/concepts/C1604286127-CDDIS.html ↗
catalogue entry · from NASA CMR
Topics
- Stated by source
- Angle Of Elevation · Angle Of Inclination · Annual Elliptical Component · Chandler Circular Component · Control Surveys · Country/Regional Coordinate Reference System · Crustal Motion Direction · Crustal Motion Rate · Earthquake Magnitude/Intensity · Ellipsoid Characteristics · ETALON-1 · ETALON-2 · Fault Movement Direction · Fault Movement Rate · Geoid Characteristics · Global Coordinate Reference System · Gravity · GROUND STATIONS · Laser Geodetic Satellite-1 · Laser Geodetic Satellite-2 · LASER REFLECTOR · Orbital Position · Orbit Type · Orbit Velocity · Plate Boundaries · Rotational Rate/Speed · SLR Station · Strain
- From keywords
- Astronomy & Astrophysics · Earth & Environmental Science · Ocean & Atmospheric Science · Physics
Provenance · 2 source records, 42 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C1604286127-CDDIS | 11 d ago | JSON v1 |
| NASA Data Portal | c8cdedb2-68d9-4bd1-8b16-20fa992e8826 | 8 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[field].local:field:astronomy | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:earth-environmental | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:ocean-atmospheric | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:physics | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[instrument].gcmd_instrument:laser-reflector | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[instrument].gcmd_instrument:slr-station | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/solid-earth/geodetics/coordinate-reference-system/country-regional-coordinate-reference-system | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/solid-earth/geodetics/coordinate-reference-system/global-coordinate-reference-system | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/solid-earth/geodetics/ellipsoid-characteristics | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/solid-earth/geodetics/geoid-characteristics | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/solid-earth/gravity-gravitational-field/control-surveys | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/solid-earth/gravity-gravitational-field/gravity | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/solid-earth/gravity-gravitational-field/polar-motion/annual-elliptical-component | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/solid-earth/gravity-gravitational-field/polar-motion/chandler-circular-component | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/solid-earth/gravity-gravitational-field/rotational-motion-variations/rotational-rate-speed | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/solid-earth/gravity-gravitational-field/satellite-orbits-revolution/angle-of-elevation | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/solid-earth/gravity-gravitational-field/satellite-orbits-revolution/angle-of-inclination | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/solid-earth/gravity-gravitational-field/satellite-orbits-revolution/orbital-position | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/solid-earth/gravity-gravitational-field/satellite-orbits-revolution/orbit-type | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/solid-earth/gravity-gravitational-field/satellite-orbits-revolution/orbit-velocity | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/solid-earth/tectonics/earthquakes/earthquake-magnitude-intensity | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/solid-earth/tectonics/plate-tectonics/crustal-motion/crustal-motion-direction | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/solid-earth/tectonics/plate-tectonics/crustal-motion/crustal-motion-rate | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/solid-earth/tectonics/plate-tectonics/fault-movement/fault-movement-direction | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/solid-earth/tectonics/plate-tectonics/fault-movement/fault-movement-rate | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/solid-earth/tectonics/plate-tectonics/plate-boundaries | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/solid-earth/tectonics/plate-tectonics/strain | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:etalon-1 | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:etalon-2 | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:ground-stations | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:lageos-1 | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:lageos-2 | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| created_date | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| description | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/Abstract |
| license_text | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| publication_date | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| spatial | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/SpatialExtent |
| temporal | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/TemporalExtents |
| title | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/EntryTitle |
| updated_date | source · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| version_label | source · NASA CMR | connector:nasa_cmr@1.0.0 |