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Text classification, translation, QA, summarization, dialogue, sentiment analysis, language modeling, text corpora
44,840 datasets
MODIS/Terra Calibrated Radiances 5Min L1B Swath 500m contains calibrated, geolocated at-aperture radiances for 7 discrete bands in the 0.45 to 2.20 micron region. Data includes quality flags, error estimates, and calibration data, with visible and shortwave infrared measurements taken during daytime and thermal infrared measured continuously. The product provides global coverage every one to two days from a 705 km orbit, with each 5-minute granule containing a scene built from 203 scans.
Photometric calibration for the 2MASS survey was performed using 35 regular fields and 5 special fields in the Large and Small Magellanic Clouds. The regular fields were scanned between 562 and 3692 times, while the Magellanic Cloud fields were observed 108 to 468 times between November 2000 and February 2001. This merged point source table contains mean positions, magnitudes, uncertainties, and confirmation statistics for sources detected multiple times, produced by the National Aeronautics and Space Administration.
Continental-scale pixel composites for dynamic coastal environments resolve tidal influences using a Voronoi mesh. The composites preserve band relationships within modelled spectra at each pixel, enabling further interpretation. Case studies include mosaics of the Australian coastline at high and low tide.
Long-period Magnetotelluric time series recorded at site TL85 near Shimpling, Suffolk, UK, in January and February 2022. The data consist of measurements of the Earth's natural magnetic and electric field variations. It was funded by the UK's Natural Environment Research Council (NERC) under grant NE/V002694/1 and is associated with the British Geological Survey (BGS).
England, UK, hosts this long-period magnetotelluric time series recorded at site TF82 near Fakenham in January to February 2022. The data consist of measurements of the Earth's natural magnetic and electric field variations. It was funded by the UK's Natural Environment Research Council under grant NE/V002694/1 and is associated with the British Geological Survey.
Long-period Magnetotelluric time series recorded from January to February 2022 at site SH39 near Anglesey, Wales, UK. The data consist of measurements of the Earth's natural magnetic and electric field variations, funded by NERC grant NE/V002694/1 'SWIMMR Activities in Ground Effects (SAGE)'. The dataset is provided by the British Geological Survey (BGS) and was last updated in May 2026.
January to February 2022 long-period Magnetotelluric time series recorded at site SE69 near Pickering, North Yorkshire, England, UK. The data consist of measurements of the Earth's natural magnetic and electric field variations. It was funded by the Natural Environment Research Council (NERC) grant NE/V002694/1 and provided by the British Geological Survey.
England hosts long-period Magnetotelluric time series recorded in January and February 2022 at site NT91 near Alnham. The data consist of measurements of the Earth’s natural magnetic and electric field variations. It was funded by NERC grant NE/V002694/1 and is provided by the British Geological Survey.
Long-period Magnetotelluric time series recorded at site SH54 in South Snowdonia, Wales, UK. The data consist of measurements of the Earth's natural magnetic and electric field variations, collected from November 2021 to January 2022. The dataset was funded by NERC grant NE/V002694/1 and is provided by the British Geological Survey.
Great Sand Dunes National Park in Colorado, USA, is the location for this dataset of repeat terrestrial laser scans and meteorological measurements from April 5-11, 2022. It includes raw point cloud data for dry rippled and moist sandy surfaces, along with wind speed from a CSAT 3D sonic anemometer and sediment transport from Sensit and Wenglor fork sensors. The data was collected under NERC Grant NE/R010196/1 and is associated with the British Geological Survey.
Raw point cloud data from repeat terrestrial laser scans (TLS) tracks the initiation and development of a field of protodunes on a desert gravel interdune surface near Helga's dune at Gobabeb, Namibia. The dataset also includes concurrent measurements of wind speed from a CSAT 3D sonic anemometer and sediment transport from a Sensit device, collected on 13th September 2022. This data was produced under NERC Grant NE/R010196/1 and is associated with the British Geological Survey (BGS).
NASA HEASARC provides a catalog of Gamma Ray Bursts observed by the Swift satellite. The data covers bursts from the mission's start on 20 November 2004 up to 31 December 2012, with standard analysis products available for bursts detected after 15 February 2005. This online catalog was created based on machine-readable tables compiled by HEASARC staff, as published in Donato et al. (2012).
A set of triggered gamma-ray events classified as flares, bursts, soft gamma-ray repeaters, or terrestrial gamma flashes, recorded by the BATSE instrument on NASA's Compton Gamma-Ray Observatory. The associated data includes raw and processed FITS files, such as BFITS spectral data and detector response matrices, useful for detailed analysis. This database table was last updated in November 2003, with Galactic coordinates added in August 2005.
NASA's TCTE mission provided daily and 6-hour averaged total solar irradiance (TSI) measurements from November 2013 to June 2019. The data, collected by the Total Irradiance Monitor (TIM) instrument, are normalized to one astronomical unit and have a designed absolute accuracy of 350 parts per million. This final version (004) of the data product supersedes all previous releases and is delivered in ASCII column-formatted files.
A catalog of pointed science windows from the INTEGRAL satellite, where each window is a continuous time interval with a specific spacecraft attitude orientation. The database was first created at the NASA HEASARC in October 2004 and is automatically updated within a day of changes to the source database maintained by the INTEGRAL Science Data Center. It includes only non-private windows with at least one instrument having a 'good' exposure time greater than zero.
TeVCat is an online catalog for very-high-energy (VHE) gamma-ray astronomy, listing sources with energies above approximately 50 GeV. The catalog and website are maintained by Scott Wakely and Deirdre Horan at the University of Chicago. This table, provided by NASA HEASARC, was first ingested in July 2017 and is updated automatically within days of changes to the main catalog.
85 square degrees of sky were surveyed in the 4.5-10 keV band down to a flux of 4-5 x 10^-14 erg/cm^2/s using the BeppoSAX satellite. The catalog, created by the HEASARC in July 2014 based on CDS data, contains sources detected from 142 high Galactic latitude observations, resolving 20-30% of the 5-10 keV X-ray background. Hardness ratio analysis indicates at least one-third of the sources have spectra harder than a power law with alpha_E = 0.6.
The Large and Small Magellanic Clouds were the focus of a special deep observation campaign. This table contains merged photometric calibration data for extended sources from the Two Micron All Sky Survey (2MASS), produced by the National Aeronautics and Space Administration. It includes mean positions, magnitudes, and uncertainties for sources detected multiple times during the survey, with merging performed using positional autocorrelation within a 1.5-arcsecond radius.
The Second Byurakan Survey (SBS) optical database contains 1676 galaxies observed to a limiting photographic magnitude of 19.5. NASA HEASARC created this table in May 2012 based on measurements from Palomar Schmidt telescope plates and the STScI Digital Sky Survey. It provides optical parameters, redshifts for 1576 objects, and 2MASS infrared magnitudes for 1117 galaxies.
Colombia's environmental zoning plan for the Río Carare basin, published by datos.gov.co. The dataset includes categorical zoning classifications and geospatial boundaries. It was last updated on 2026-05-18.