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Particle physics, nuclear physics, condensed matter, plasma physics, optics, acoustics, quantum mechanics
6,237 datasets
Voyager 2 plasma data of the solar wind, aggregated into 1-hour averages. The dataset is provided by the National Aeronautics and Space Administration (NASA) and was last updated on the platform in March 2026. It contains measurements from the Voyager 2 spacecraft's journey through the heliosphere.
Information concerning elected municipal officials in the City of Laval. The dataset is provided by the Government and Municipalities of Québec and was last updated on April 17, 2026. It is available in XML, CSV, and JSON formats under a CC-BY-4.0 license.
Capital budgets planned for each project and program included in the Triennial Capital Plan (PTI). The dataset contains quantitative and qualitative data from the Government and Municipalities of Québec. It was last updated on April 17, 2026.
Source Data files for a photonic analogue of altermagnetism. The dataset is 13.0 MB in size and was authored by Jianfeng Chen. It was last updated on May 10, 2026.
A 504.6 KB PDF document authored by figshare admin karger and last updated in April 2026. The supplementary material provides a case report and pathophysiological insights into fetal heart rate anomalies observed in acute fatty liver of pregnancy (AFLP). It contributes to the limited literature on the role of maternal metabolic acidosis and placental hypoperfusion in fetal hypoxia.
From 1978 November 13 to 1981 April 25, the Einstein Observatory (HEAO-2) collected astronomical data. Its Solid State Spectrometer (SSS) operated between 1978 December 1 and 1979 October 22, with reliable data ending on 1979 October 03. This NASA HEASARC database provides the raw SSS and associated Monitoring Proportional Counter (MPC) data, restored in FITS format from the original machine-dependent data.
The HRIIMAGE database contains information from the High Resolution Imager aboard HEAO 2, the Einstein Observatory. Einstein was launched on November 13, 1978, and operated until April 1981, providing high-resolution X-ray telescope data. This catalog is a service provided by NASA HEASARC, with one duplicate entry removed in June 2019.
MODIS/Terra Land Surface Temperature/3-Band Emissivity Daily L3 Global 1km SIN Grid Night V061 provides daily global nighttime land surface temperature and spectral emissivity estimates. The dataset is produced by NASA's LPCLOUD using a physics-based Temperature/Emissivity Separation algorithm on MODIS thermal infrared data. It offers a spatial resolution of 1,000 meters and is part of the MODIS Collection 6.1.
MODIS/Terra Land Surface Temperature/3-Band Emissivity Daily L3 Global 1km SIN Grid Day V061 provides daily global land surface temperature and emissivity estimates. The MOD21 algorithm from NASA's LPCLOUD uses a physics-based Temperature/Emissivity Separation technique on MODIS thermal infrared bands. Data is produced daily at a 1,000-meter spatial resolution on a sinusoidal grid.
MODIS/Aqua Land Surface Temperature/3-Band Emissivity Daily L3 Global 1km SIN Grid Night V061 provides daily global nighttime land surface temperature and emissivity data at 1km resolution. The dataset is produced by LPCLOUD/NASA using the MODIS Aqua sensor and a physics-based Temperature/Emissivity Separation algorithm. It contains seven Science Datasets including calculated LST, three emissivity bands, quality control flags, view zenith angle, and observation time.
Daily global land surface temperature and 3-band emissivity data at 1km resolution, produced from MODIS/Aqua satellite observations. The dataset is generated by NASA's LPCLOUD using a physics-based Temperature/Emissivity Separation algorithm on thermal infrared bands. It represents a Collection 6.1 product with known differences from heritage MODIS LST datasets.
Collection 6.1 of MODIS Aqua data provides daily global land surface temperature and three-band emissivity estimates using a physics-based algorithm. The Level 3 product averages daytime observations from the MYD21 sensor, applying quality thresholds like a 15% observation coverage minimum. It is produced by LPCLOUD for NASA's Earthdata platform.
NASA HEASARC provides data from the Imaging Proportional Counter aboard the Einstein Observatory (HEAO 2). The satellite was launched on November 13, 1978, and operated until April 1981, capturing high-resolution X-ray imagery. This database contains information from one of the four focal plane instruments on the observatory.
November 1978 to April 1981 photon event data from the Einstein Observatory's High Resolution Imager (HRI). The database contains information from the HEAO-2 satellite's X-ray telescope in Event List Format. This is a service provided by NASA's High Energy Astrophysics Science Archive Research Center (HEASARC).
1,159 stars are included in this compilation of Be stars, defined as non-supergiant B-type stars that have shown emission in at least one Balmer line. The catalog was compiled by NASA HEASARC, excluding stars without published MK spectral types except for 132 stars from a specific 1973 study. It was last updated on March 13, 2026.
3906 gamma-ray bursts were detected by scanning the archival BATSE daily records covering the instrument's full 9.1-year operational period. The catalog includes 2068 previously known triggered bursts and 1838 new non-triggered events, processed uniformly to create a sample with a lowered detection threshold. This table was created by NASA's HEASARC in August 2001 from data hosted by the Stockholm Observatory.
The Canadian Radiological Monitoring Network provides 90Sr activity concentrations in milk samples from across Canada, measured in becquerels per litre (Bq/L). Data was collected from 20 locations from 1984 to 1993, after which routine analysis continued only in Ottawa. This dataset is used for environmental radioactivity assessment, tracking the decline of fallout from nuclear weapons testing.
The NuSTAR As-Flown Timeline (NUAFTL) database table records the observation history of the Nuclear Spectroscopic Telescope Array (NuSTAR) hard X-ray observatory. NuSTAR observes the sky in the high energy X-ray (3 - 79 keV) region of the electromagnetic spectrum. This HEASARC database table is updated automatically within a day or so of each observation's completion and is a service provided by NASA HEASARC.
5.5 KB of tabular data in XLS format compares alternative learning models (LMs) to a multilayer perceptron (MLP). The dataset, authored by Alexy Tran-Dinh and licensed under CC-BY-4.0, likely contains model performance metrics and topological characteristics. It was last updated on figshare in May 2026.
1022 independent source detections from 5916 pointed observations by the ROSAT Wide Field Camera in the extreme UV range (17-210eV). The catalogue corresponds to 328 individual sources, with 113 being new discoveries and 274 having optical counterpart identifications. This data was processed by NASA HEASARC from observations between June 1990 and July 1994.