Array · collection · 2025
MODIS/Terra Calibrated Radiances 5-Min L1B Swath 250m V7
Listed in NASA Earthdata CMR and NASA Data Portal — shown once because both records carry DOI 10.5067/modis/mod02qkm.007
The Terra MODIS (Moderate resolution Imaging Spectroradiometer) Level-1B (L1B) product includes calibrated and geolocated at-aperture radiances for 36 bands generated from MODIS Level-1A raw sensor counts.
Description
The radiances are provided in watts/m2/micrometer/steradian. The Terra MODIS L1B product is a set three datasets (MOD02QKM, MOD02HKM, and MOD021KM) that are produced to address the three spatial-resolution variations: 250 m, 500 m, and 1000 m.
This landing page describes the quarter-kilometer product with a short-name MOD02QKM. It provides calibrated radiances derived from the 250-m at-nadir visible band-1 and near-infrared band-2 that have central wavelengths at 0.645 µm and 0.858 µm, respectively. Each 250-m band has 40 detectors in the along-track direction.
Read the rest (2 more)
The MOD02QKM product contains the following two Science Data Sets (SDS) besides geolocation fields for latitude and longitude, quality flags, error estimates, etc. <html> <body> <table> <tr> <th>SDS Variable</th> <th>Long-name</th> </tr> <tr> <td>EV_250_RefSB</td> <td>Earth View 250M Reflective Solar Bands Scaled Integers</td> </tr> <tr> <td>EV_250_RefSB_Uncert_Indexes</td> <td>Earth View 250M Reflective Solar Bands Uncertainty Indexes</td> </tr> </table> </body> </html> <br> The v7.0 Terra MODIS MOD02QKM in netCDF4 format represents the most current version of this product that has undergone around half-a-dozen reprocessing cycles in the last 2.5 decades.
Each 250-m swath granule or data-file temporally spans 5 minutes and its image dimensions measure 8,120 lines (along-track direction) by 5,416 samples (cross-track direction). The v7.0 collection’s data record starts from February 24, 2000 (2000–055). Consult the MODIS L1B User Guide to understand how to convert the per-pixel scaled integers to radiance or reflectance.
Links
Get the data
- MODIS Level 1B Product User’s Guide mcst.gsfc.nasa.gov/sites/default/files/file_attachments/modis_C7_L1B_Doc/M1054_PU… ↗
documentation · download · from NASA CMR, data nasa gov
- MODIS Level 1B Product ATBD mcst.gsfc.nasa.gov/sites/default/files/file_attachments/MODIS_L1B_ATBD_C7_v7.pdf ↗
documentation · download · from NASA CMR, data nasa gov
- ladsweb.modaps.eosdis.nasa.gov /archive/allData/7/MOD02QKM ↗
Direct access to the https site and directory hosting the MOD02QKM C7 data set.
download · from NASA CMR
- Original Metadata cmr.earthdata.nasa.gov/search/concepts/C3861609263-LAADS.iso19115 ↗
download · from data nasa gov
- search.earthdata.nasa.gov /search/granules?p=C3861609263-LAADS ↗
Earthdata Search allows users to search, discover, visualize, refine, and access NASA Earth Observation data.
download · from NASA CMR
Where it is published
- NASA Data Portal dataset page data.nasa.gov/dataset/modis-terra-calibrated-radiances-5-min-l1b-swath-250m-… ↗
landing page · from data nasa gov
- DOI doi.org/10.5067/modis/mod02qkm.007 ↗
DOI / persistent id · from NASA CMR
Catalogue records · 3
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C3861609263-LAADS.umm_json ↗
metadata API · from NASA CMR
- CKAN API data.nasa.gov/api/3/action/package_show?id=20322ddb-12ca-41aa-a95e-b8f19f295… ↗
metadata API · from data nasa gov
- CMR record cmr.earthdata.nasa.gov/search/concepts/C3861609263-LAADS.html ↗
catalogue entry · from NASA CMR
Topics
- Stated by source
- Earth Observing System, Terra (AM-1) · Infrared Radiance · Moderate-Resolution Imaging Spectroradiometer · Reflected Infrared · Visible Radiance
- From keywords
- Astronomy & Astrophysics · Earth & Environmental Science · Engineering · Ocean & Atmospheric Science · Physics
- Inferred from text
- Geomatic engineering 68% · Image 75% · Imaging 75% · Tabular 65%
Related
- Newer version ofMODIS/Terra Calibrated Radiances 5-Min L1B Swath 250m
Provenance · 2 source records, 24 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C3861609263-LAADS | 7 d ago | JSON v1 |
| NASA Data Portal | 20322ddb-12ca-41aa-a95e-b8f19f295bff | 4 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[field].anzsrc:group:4013 | enrichment · NASA CMR | taxonomy-embedding@1.0.0 | title+keywords+description (68%) |
| 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:engineering | 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:modis | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/spectral-engineering/infrared-wavelengths/infrared-radiance | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/spectral-engineering/infrared-wavelengths/reflected-infrared | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/spectral-engineering/visible-wavelengths/visible-radiance | 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[modality].local:modality:imaging | enrichment · NASA CMR | keyword-concept-rules@1.0.0 | title+description (75%) |
| concepts[modality].local:modality:tabular | enrichment · NASA CMR | keyword-concept-rules@1.0.0 | title+description (65%) |
| concepts[platform].gcmd_platform:terra | 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 |