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Telescope observations, star catalogs, exoplanet surveys, galaxy morphology, gravitational waves, spectroscopy
3,259 datasets
Daily average fluxes of protons and helium nuclei from the Ulysses spacecraft's COSPIN High Energy Telescope. The data covers two energy ranges, 39-70 MeV/n and 71-94 MeV/n, spanning from day 296 of 1990 through day 181 of 2009. This dataset was produced by the National Aeronautics and Space Administration.
Ten-minute average counting rates for ions and electrons from the Ulysses spacecraft's COSPIN High Energy Telescope. The data provide a measure of particle arrival direction anisotropy in the spacecraft spin plane and were produced by the National Aeronautics and Space Administration. The dataset was last updated in March 2026.
NASA's Ulysses spacecraft recorded energetic particle fluxes from the Sun and interstellar space. The High Flux Telescope measured spin-averaged and sectored counting rates for protons and heavier nuclei. Data is aggregated into 10-minute average nominal fluxes.
Voyager 1's Planetary Radio Astronomy instrument captured calibrated low-frequency radio emissions from Saturn during its 1980 encounter. The dataset contains the highest time resolution data from normal operations, with eight 6-second sweeps through 70 frequency channels packaged into 48-second major frames. Data are provided in calibrated millibel units and cover the full Saturn encounter phase from August 22 to December 14, 1980.
Minute-resolution electron and proton flux spectra collected by the STEREO-A spacecraft's IMPACT SEPT instrument. The data consist of fluxes from 32 energy bands spanning ~20 keV to 2000 keV for electrons and up to 7000 keV for protons, measured in four distinct directions relative to the Parker magnetic field and ecliptic plane. The dataset is provided by the National Aeronautics and Space Administration and was last updated in March 2026.
Absorbance, fluorescence, and emission intensity data collected under varying solvent and temperature conditions. The dataset's origin, size, and specific collection methodology are not detailed in the provided metadata. Platform information indicates it is hosted on Kaggle.
Simulation data and run files from Rui and Fuller 2021, modeling stellar mergers using the Modules for Experiments in Stellar Astrophysics (MESA) software. The data includes inlists, run files, and selected output for single star models and various merger scenarios between red giants and main sequence stars. The work was authored by Nicholas Z. Rui of the California Institute of Technology.
A catalog of 4,805 early M-type dwarf stars cross-matched with Galaxy Evolution Explorer (GALEX) near-ultraviolet sources. The table lists 797 stars with NUV emission significantly above a basal level, after accounting for an estimated 16% false positives from background sources or companions. NASA HEASARC created this table in March 2015 based on research published in the Astronomical Journal.
The Herschel SPIRE Point Source Catalog contains systematically extracted sources from about 9% of the sky mapped by the Herschel-SPIRE instrument at 500 microns. The catalog results from a homogeneous source extraction on 6878 scan maps, using four different photometry methods and excluding only regions with strong Galactic emission. It was produced by the National Aeronautics and Space Administration and last updated in March 2026.
A catalog of point and slightly extended sources detected at 350 microns (857 GHz) by the Herschel Space Observatory's SPIRE instrument. The catalog is derived from 6,878 scan maps covering approximately 9% of the sky, with flux densities and uncertainties established through artificial source insertion experiments. It was produced by the National Aeronautics and Space Administration and last updated in March 2026.
NASA HEASARC provides a catalog of 169 X-ray point sources detected in the ring galaxy NGC 1291 using Chandra observations totaling 179 ks of exposure. The catalog, created in May 2012, reports photometric properties and classifies sources in the bulge and ring regions, with luminosity functions reaching 90% completeness limits of ~1.5e37 and ~2.2e37 erg/s. The data suggests the populations are dominated by low-mass X-ray binaries, with evidence for an older population in the bulge and a younger one in the ring.
The Herschel-SPIRE instrument mapped about 9% of the sky. This catalog contains the results of a systematic and homogeneous source extraction from 6878 scan maps at 250 microns, performed by NASA, with data last updated in March 2026. It includes point sources and slightly extended sources, with flux uncertainties established via artificial source insertion experiments.
The comet 67P/Churyumov-Gerasimenko is the subject of this Rosetta Radio Science dataset. It contains global gravity measurements collected by NASA during the PRELANDING phase from 2014-01 21 to 2014-11-18, with a specific time slice from 2014-09-14T17:13:03.000 to 2014-09-14T23:35:10.000.
1751 public software-defined radio receivers provide web-controlled access to the 0-30 MHz high-frequency spectrum. This dataset, sourced from kiwisdr.com and the University of Twente, lists the global network of receivers. It was last updated on 2026-04-08 by the author alphamate.
The Small Main-belt Asteroid Spectroscopic Survey, Phase II (SMASSII) provides visible-wavelength spectra for 1,341 main-belt asteroids observed between August 1993 and March 1999. NASA produced this dataset to study the compositional diversity and structure of the asteroid belt. The survey focused on small asteroids with diameters under 20 kilometers.
Nannofossil and planktic foraminiferal data from three marginal-marine sections in the Indo-Pacific region, published by Geoscience Australia. The dataset examines the stratigraphic appearance of species like Globigerinoides quadrilobatus primordius and Sphenolithus ciperoensis to refine the Oligocene-Miocene boundary. It was last updated on 2026-03-25.
Rosetta Radio Science data collected by NASA during the PRELANDING phase from 2014-01-21 to 2014-11 18. The dataset contains global gravity measurements for comet 67P, with a specific time coverage from 2014-08-16T13:37:05.000 to 2014-08-16T18:57:01.000.
A Rosetta Radio Science data set collected by the National Aeronautics and Space Administration during the PRELANDING phase from 2014-01 21 to 2014-11-18. It contains global gravity measurements at comet 67P, specifically covering the time period 2014-10-25T12:21:15.000 to 2014-10-25T14:39:58.500.
NASA's Rosetta orbiter collected this Radio Science data set during the PRELANDING phase from 2014-01 21 to 2014-11-18. It provides Global Gravity measurements at comet 67P/Churyumov–Gerasimenko, specifically covering a 3-hour observation window on 2014-09-13. The data was last updated on the datagov platform in March 2026.
A Rosetta Radio Science data set collected during the PRELANDING phase from 2014-01 21 to 2014-11-18. It contains global gravity measurements at comet 67P, specifically covering the period 2014-09-05T06:52:05.000 to 2014-09-05T17:31:17.000. The dataset is provided by the National Aeronautics and Space Administration.