Imaging · collection · 2026
NISAR Beta Range Doppler Single Look Complex Product (Version 1)
Listed in NASA Earthdata CMR and NASA Data Portal — shown once because both records carry DOI 10.5067/nil1rslc-b1
The NASA-ISRO Synthetic Aperture Radar (NISAR) Range Doppler Single Look Complex (RSLC) product is in the zero-Doppler radar geometry convention.
Description
The output image is on a grid characterized by constant azimuth time interval and one-way slant range spacing. The output grid is also characterized by a fixed starting slant range, azimuth time interval, and slant range spacing values for easy interpolation.
All the primary image layers for a multi-polarization or multi-frequency product are generated on a common azimuth time-slant range grid. The RSLC product, which is used to derive other L1 and L2 products, contains individual binary raster layers representing complex signal return for each polarization layer. The RSLC data corresponding to the auxiliary sub-band is stored in a similar format but in a separate data group within the HDF5 product granule.
Read the rest (2 more)
The RSLC product is also packed with input, instrument and processing facility information; processing, calibration and noise parameters; geolocation grid; and data quality flags. The RSLC product complex backscatter is in digital numbers (DNs) with secondary layer look-up tables (LUTs) provided to convert to beta-naught, sigma-naught, and gamma-naught. These radiometric correction LUTs are defined for the ellipsoid (e.g., not for the local terrain).
All standard (i.e., non-urgent response) products are processed using the Medium-fidelity Orbit Ephemeris (MOE) product for forward processing and the Precise Orbit Ephemeris (POE) product for reprocessing campaigns. The products in this collection are considered Beta products and are intended to enable users to gain familiarity with the parameters and the data formats. Beta products are not intended for use in scientific research.
Links
Get the data
- ASF created NISAR Data User Guide nisar-docs.asf.alaska.edu/rslc ↗
documentation · download · from NASA CMR, data nasa gov
- Original Metadata cmr.earthdata.nasa.gov/search/concepts/C2850225585-ASF.iso19115 ↗
download · from data nasa gov
- search.earthdata.nasa.gov /search/granules?p=C2850225585-ASF ↗
Search and download data granules using NASA Earthdata Search interface.
download · from NASA CMR
- Resource nisar.jpl.nasa.gov ↗
download · project · from data nasa gov, NASA CMR
- search.asf.alaska.edu ↗
Search and download data granules using the ASF Data Search graphical search interface Vertex.
download · from NASA CMR
Where it is published
- NASA Data Portal dataset page data.nasa.gov/dataset/nisar-beta-range-doppler-single-look-complex-product-v… ↗
landing page · from data nasa gov
- DOI doi.org/10.5067/nil1rslc-b1 ↗
DOI / persistent id · from NASA CMR
Catalogue records · 3
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C2850225585-ASF.umm_json ↗
metadata API · from NASA CMR
- CKAN API data.nasa.gov/api/3/action/package_show?id=a0f776fb-b4cd-4f96-8476-e6267d446… ↗
metadata API · from data nasa gov
- CMR record cmr.earthdata.nasa.gov/search/concepts/C2850225585-ASF.html ↗
catalogue entry · from NASA CMR
Topics
- Stated by source
- Forest Science · Frozen Ground · Geomorphic Landforms/Processes · Glaciers Ice Sheets · L-band Synthetic Aperture Radar · NASA-ISRO SAR Mission · S-band Synthetic Aperture Radar · Tectonics
- From keywords
- Astronomy & Astrophysics · Earth & Environmental Science · Life Sciences · Ocean & Atmospheric Science · Physics
- Inferred from text
- Image 75%
Provenance · 2 source records, 24 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C2850225585-ASF | 8 d ago | JSON v1 |
| NASA Data Portal | a0f776fb-b4cd-4f96-8476-e6267d4467fb | 5 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:life-sciences | 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:l-sar | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[instrument].gcmd_instrument:s-sar | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/agriculture/forest-science | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/cryosphere/frozen-ground | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/cryosphere/glaciers-ice-sheets | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/land-surface/geomorphic-landforms-processes | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/solid-earth/tectonics | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[modality].local:modality:image | enrichment · NASA CMR | keyword-concept-rules@1.0.0 | title+description (75%) |
| concepts[platform].gcmd_platform:nisar | 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 |