Table · collection · 2025
Very Long Baseline Interferometry (VLBI) Level 1A correlator (SWIN) output from NASA CDDIS
Listed in NASA Earthdata CMR and NASA Data Portal — shown once because both records carry DOI 10.5067/vlbi/vlbi_l1a_swin_001
SWIN files contain the VLBI fringe visibilities of an observing session (24 hours long or 1 hour long).
Description
The files are created by the International VLBI Service for Geodesy and Astrometry (IVS) correlation centers and constitute the raw output of the Distributed FX-style (DiFX) software correlator running on a Swinburne supercomputer. These data form the basis for the fringe fitting process and can also be used to make source maps of the observed quasars.
Links
Get the data
- URL for more information about VLBI products doi.org/10.5067/vlbi/vlbi_l1a_swin_001 ↗
landing page · download · DOI / persistent id · from NASA CMR, data nasa gov
- URL for more information about VLBI products earthdata.nasa.gov/data/space-geodesy-techniques/vlbi/data-products-holdings ↗
documentation · download · from NASA CMR, data nasa gov
- URL for retrieval of VLBI products through https cddis.nasa.gov/archive/vlbi/ivsdata/swin ↗
download · from NASA CMR
- Original Metadata cmr.earthdata.nasa.gov/search/concepts/C2042428712-CDDIS.iso19115 ↗
download · from data nasa gov
Where it is published
- NASA Data Portal dataset page data.nasa.gov/dataset/cddis-vlbi-swin-data-7e227 ↗
landing page · from data nasa gov
Catalogue records · 3
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C2042428712-CDDIS.umm_json ↗
metadata API · from NASA CMR
- CKAN API data.nasa.gov/api/3/action/package_show?id=40780b11-45b5-4d78-a754-889646ac2… ↗
metadata API · from data nasa gov
- CMR record cmr.earthdata.nasa.gov/search/concepts/C2042428712-CDDIS.html ↗
catalogue entry · from NASA CMR
Topics
Provenance · 2 source records, 18 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C2042428712-CDDIS | 15 d ago | JSON v1 |
| NASA Data Portal | 40780b11-45b5-4d78-a754-889646ac2ed7 | 12 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:vlbi-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[platform].gcmd_platform:ground-based-observations | 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 |