Table · collection · 2025
International Laser Ranging Service (ILRS) extension of the International Terrestrial Reference Frame 2020 (ITRF2020) TRF Model with additional SLR sites from NASA CDDIS
Listed in NASA Earthdata CMR and NASA Data Portal — shown once because both records carry DOI 10.5067/slr/slrf2020_001
Expanded set of SLR station positions and velocities in the ITRF2020 frame, includes historical sites NOT part of ITRF2020 and some very recently installed sites that came online in 2022.
Description
A small number of sites require special treatment with the addition of corrections to their "mean" positions (in this file) from the ITRS-distributed PSD model, due to "events" (e.g. earthquakes) or changes at the site. Users must apply these corrections cumulatively, to the linearly propagated positions from this file, by themselves.
For more details, s/w and relevant correction files please visit the official ITRS site on ITRF2020 at: itrf.ign.fr/en/solutions/ITRF2020
Links
Get the data
- Resource doi.org/10.5067/slr/slrf2020_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
- cddis.nasa.gov /archive/slr/products/resource/SLRF2020_POS+VEL_2025.05.13.snx.… ↗
URL for retrieval of SLR derived products through https
download · from NASA CMR
- Original Metadata cmr.earthdata.nasa.gov/search/concepts/C2736341183-CDDIS.iso19115 ↗
download · from data nasa gov
- Resource cddis.nasa.gov/archive/slr/products/resource/SLRF2020_POS%2BVEL_2025.05.13.sn… ↗
download · from data nasa gov
Where it is published
- NASA Data Portal dataset page data.nasa.gov/dataset/the-international-laser-ranging-service-ilrs-extension… ↗
landing page · from data nasa gov
Catalogue records · 3
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C2736341183-CDDIS.umm_json ↗
metadata API · from NASA CMR
- CKAN API data.nasa.gov/api/3/action/package_show?id=765cbfb2-9136-4a78-87c1-f510b1039… ↗
metadata API · from data nasa gov
- CMR record cmr.earthdata.nasa.gov/search/concepts/C2736341183-CDDIS.html ↗
catalogue entry · from NASA CMR
Topics
- Stated by source
- Geoid Characteristics · Global Coordinate Reference System · SATELLITES
- From keywords
- Astronomy & Astrophysics · Earth & Environmental Science · Ocean & Atmospheric Science · Physics
Provenance · 2 source records, 17 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C2736341183-CDDIS | 10 d ago | JSON v1 |
| NASA Data Portal | 765cbfb2-9136-4a78-87c1-f510b10398e2 | 7 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[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/geoid-characteristics | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:satellites | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| created_date | source · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| description | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/Abstract |
| license_text | source · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| publication_date | source · data nasa gov | connector:data_nasa_gov@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 |