AndreaBozzo/ceres-open-data-index huggingface dataset:
Catalog of AGN in the XMM-Newton Archive

This table comprises CAIXA, the &quot;Catalog of AGN In the XMM-Newton Archive&quot;. It consists of all the radio-quiet, X-ray unobscured (N&lt;sub&gt;H&lt;/sub&gt; &lt; 2 x 10&lt;sup&gt;22&lt;/sup&gt; cm&lt;sup&gt;-2&lt;/sup&gt;) active galactic nuclei (AGN) observed by XMM-Newton in targeted observations, whose data were public as of March 2007. With its 156 sources, this is the largest catalog of high signal-to-noise X-ray spectra of AGN. All the EPIC pn spectra of the sources in CAIXA were extracted homogeneously, and a baseline model was applied in order to derive their basic X-ray properties. These data are complemented by multiwavelength data found in the literature: black hole masses, full width half maximum (FWHM) of H(beta), radio and optical fluxes. In their paper, the authors describe their homogeneous spectral analysis of the X-ray data in CAIXA and present all the results for the parameters adopted in their best-fit models. This table was created by the HEASARC in March 2009 based on the &lt;a href="https://cdsarc.cds.unistra.fr/ftp/cats/J/A+A/495/421"&gt;CDS catalog J/A+A/495/421&lt;/a&gt; files table1.dat, table2.dat and table3.dat. This is a service provided by NASA HEASARC .

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Organization: National Aeronautics and Space Administration
LBA-ECO CD-36 South American Land Data Assimilation System Atmospheric Forcing Data

This data set provides South American Land Data Assimilation System (SALDAS) forcing data including atmospheric fields necessary for land surface modeling for South America which are derived by combining modeled and observation based sources. The forcing data cover the entire continent of South America at 0.125 degree resolution and are built around the model-calculated values of air temperature, wind speed and specific humidity at two meters, surface pressure, downward shortwave and longwave surface radiation, and precipitation from the South American Regional Reanalysis (SARR). These SARR data (Aravequia et al. 2007), which were released in 2006 by INPE/CPTEC, are a medium-term, dynamically consistent, high-resolution (0.125 degree), high-frequency, atmospheric dataset covering South America. The forcing data are available at a 3-hourly time step for a 5-year period from 2000 to 2004. There are 60 monthly *.zip files with each zipped file containing ~240 3-hourly time step data files for that particular month in NetCDF format. Each zipped file is approximately one GB in size.

Tags: earth-science-land-use-land-cover-land-surface-land-use-land-cover-classification
Organization: National Aeronautics and Space Administration
ROSETTA-ORBITER 67P RSI 1/2/3 COMET ESCORT 4 1261 V1.0

This is a Rosetta Radio Science data set, collected during the COMET ESCORT 4 phase 2015-10-22 to 2015-12-31. It is a Global Gravity measurement at the comet 67P and covers the time 2015-12-15T20:34:05.000 to 2015-12-16T00:16:34.000.

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Organization: National Aeronautics and Space Administration
ROSETTA-ORBITER 67P RSI 1/2/3 COMET ESCORT 3 0905 V1.0

This is a Rosetta Radio Science data set, collected during the COMET ESCORT 3 phase 2015-07-01 to 2015-10-21. It is a Global Gravity measurement at the comet 67P and covers the time 2015-07-18T21:18:10.000 to 2015-07-19T02:54:06.500.

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Organization: National Aeronautics and Space Administration
VG1 SAT MAG RESAMPLED HELIOGRAPHIC (RTN)                                      COORDS 48.0SEC V1.0

This data set includes calibrated    magnetic field data acquired by the Voyager 1 Low Field Magnetometer (LFM)    during the Saturn encounter. Coverage begins in the solar wind inbound to    Saturn and continues past the last outbound bowshock crossing. The data    are in Heliographic (RTN) coordinates and have been averaged from the 9.6    second summary rate to a 48 second sample rate. All magnetic field    measurements are given in nanoTesla (nT). The magnetic field data    are calibrated (see the calibration description included in the    Voyager 1 Magnetometer instrument catalog file for details).

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Organization: National Aeronautics and Space Administration
LBA-ECO LC-02 Hot Pixel Fire Indicator Data for Tri-national MAP Region: 2003-2006

This data set provides hot pixel data, as an indicator of fires, that were detected by various satellites in the tri-national MAP region (Madre de Dios-Peru, Acre-Brazil, and Pando-Bolivia) in 2003, 2004, 2005, and 2006. Data from the following satellites/sensors were compiled: NOAA-12, NOAA-14, NOAA-15, and NOAA-16, which transports the AVHRR sensor; GOES-8 and GOES- 12, which transports the GOES Imager; and AQUA and TERRA, both which transport the MODIS sensor. These data were made available by the Centro de PrevisÃ£o do Tempo e Estudos ClimÃ¡ticos (CPTEC) of the Instituto Nacional de Pesquisas Espaciais (INPE) via the internet (http://sigma.cptec.inpe.br/queimadas/). This data set contains 12 comma-delimited ASCII data files. Hot pixel data from satellites can be used as an indicator of fires and for the understanding of fire frequency in remote areas. The publication by Vasconcelos and Brown, 2007, which has been included as a companion file, describes the application of these data in the MAP region. In addition to the the hot pixel data, each observation has a derived vegetation type, susceptibility to fire, recent and past precipitation amounts, and a calculated fire risk value. These data are described in the Fire Risk Factor companion file, by Alberto W. Setzer and Raffi A. Sismanoglu, Version 5, February 2006.

Tags: earth-science-ecological-dynamics-biosphere-fire-ecology-fire-occurrence, earth-science-land-use-land-cover-land-surface-land-use-land-cover-classification
Organization: National Aeronautics and Space Administration
LBA-ECO LC-09 Land Cover Transitions Maps for Study Sites in Para, Brazil: 1970-2001

This data set includes classified land cover transition maps at 30-m resolution derived from Landsat TM, MSS, ETM+ imagery and aerial photos of Altamira, Santarem, and Ponta de Pedras, in the state of Para, Brazil. The Landsat images were classified into several types of land use (e.g., forest, secondary succession, pasture, annual crops, perennial crops, and water) and subjected to change detection analysis to create transition matrices of land cover change. Dates of acquired images represent the most cloud-free image retrievals from 1970-2001 for each site and are therefore not continuous. There are 3 GeoTIFF files (.tif) with this data set.

Tags: earth-science-environmental-governance-management-human-dimensions-land-management-land-use-cla, earth-science-habitat-conversion-fragmentation-human-dimensions-deforestation
Organization: National Aeronautics and Space Administration
XMM-Newton 2XMMi-DR3 Selected Source Classifications Catalog

The authors have carried out a classification of 4,330 X-ray sources in the 2XMMi-DR3 catalog. The sources were selected under the requirement of being a point source with multiple XMM-Newton observations and at least one detection with a signal-to-noise ratio larger than 20. For about one-third of the sources, the authors are able to obtain reliable source types from the literature. They mostly correspond to various types of stars (611), active galactic nuclei (AGNs, 753), and compact object systems (138) containing white dwarfs, neutron stars, and stellar-mass black holes. The authors find that about 99% of stars can be separated from other source types based on their low X-ray-to-IR flux ratios and frequent X-ray flares. AGNs have remarkably similar X-ray spectra, with the power-law photon index centered around 1.91 +/- 0.31, and their 0.2-4.5 keV flux long-term variation factors have a median of 1.48, with 98.5% being less than 10. In contrast, 70% of compact object systems can be very soft or hard, highly variable in X-rays, and/or have very large X-ray-to-IR flux ratios, separating them from AGNs. Using these results, the authors derive a source type classification scheme to classify the other sources and find 644 candidate stars, 1,376 candidate AGNs, and 202 candidate compact object systems, whose false identification probabilities are estimated to be about 1%, 3%, and 18%, respectively. There are still 320 sources associated with nearby galaxies and 151 in the Galactic plane, which the authors expect to be mostly compact object systems or background AGNs. There are also 100 candidate ultraluminous X-ray sources. They are found to be much less variable than other accreting compact objects. This table was created by the HEASARC in October 2012 based on an electronic version of Table 4 from the reference paper which was obtained from the ApJ web site. This is a service provided by NASA HEASARC .

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Organization: National Aeronautics and Space Administration
MARS EXPRESS MARS MRS 1/2/3 EXTENDED MISSION 5 3858 V1.0

This is a Mars Express Radio Science data set, collected during the extended mission phase 2015-01-01 to 2016-12-31. It is a Occultation measurement and covers the time 2016-11-14T06:30:00 to 2016-11-14T11:54:39.500.

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Organization: National Aeronautics and Space Administration
MARS EXPRESS SUN MRS 1/2/3 EXTENDED MISSION 5 3763 V1.0

This is a Mars Express Radio Science data set, collected during the extended mission phase 2015-01-01 to 2016-12-31. It is a Solar Conjunction measurement and covers the time 2015-06-11T00:22:15.000 to 2015-06-11T08:21:48.500.

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Organization: National Aeronautics and Space Administration
LBA-ECO LC-03 SAR Images, Land Cover, and Biomass, Four Areas across Brazilian Amazon

This data set provides three related land cover products for four study areas across the Brazilian Amazon: Manaus, Amazonas; Tapajos National Forest, Para Western (Santarem); Rio Branco, Acre; and Rondonia, Rondonia. Products include (1) orthorectified JERS-1 and RadarSat images, (2) land cover classifications derived from the SAR data, and (3) biomass estimates in tons per hectare based on the land cover classification. There are 12 image files (.tif) with this data set. Orthorectified JERS-1 and RadarSat images are provided as GeoTIFF images - one file for each study area. For the Manaus and Tapajos sites: The images are orthorectified at 12.5-meter resolution and then re-sampled at 25-meter resolution. For the Rondonia and Rio Branco sites: The images from 1978 are orthorectified at 25-meter resolution and then re-sampled at 90-meter resolution. Each GeoTIFF file contains 3 image channels: - 2 L-band JERS-1 data in Fall and Spring seasons and - 1 C-band RadarSat data. Land cover classifications are based on two JERS-1 images and one RadarSat image and provided as GeoTIFFs - one file for each study area. Four major land cover classes are distinguished: (1) Flat surface; (2) Regrowth area; (3) Short vegetation; and (4) Tall vegetation. The biomass estimates in tons per hectare are based on the land cover classification results and are reported in one GeoTIFF file for each study area. DATA QUALITY STATEMENT: The Data Center has determined that there are questions about the quality of the data reported in this data set. The data set has missing or incomplete data, metadata, or other documentation that diminishes the usability of the products. KNOWN PROBLEMS: The data providers note that due to limited resources, these data have been neither validated nor quality-assured for general use. For that reason, extreme caution is advised when considering the use of these data. Any use of the derived data is not recommended because the results have not been validated. However, the DEM and vectors (related data set), and orthorectified SAR data can be used if the user understands how these were produced and accepts the limitations.

Tags: earth-science-land-use-land-cover-land-surface-land-use-classes, earth-science-land-use-land-cover-land-surface-land-use-land-cover-classification, earth-science-vegetation-biosphere-biomass
Organization: National Aeronautics and Space Administration
M 51 Chandra X-Ray Discrete Source Catalog

This table contains the results of two Chandra observations (separated by 1 year) of the population of X-ray sources in the spiral galaxy M 51 (NGC 5194 and NGC 5195). One hundred and thirteen X-ray sources have been detected in an 8.4&#39; x 8.4&#39;(20.4 x 20.4kpc) region, and 84 and 12 of them project within the disks of NGC 5194 and NGC 5195, respectively. Nine and 28 sources have luminosities exceeding 1 x 10&lt;sup&gt;39&lt;/sup&gt; erg/s (ultraluminous X-ray sources or ULXs) and 1 x 10&lt;sup&gt;38&lt;/sup&gt; erg/s in the 0.5 - 8 keV band, respectively, assuming that they are associated with M 51. The number of ULXs is much higher than found in most normal spiral and elliptical galaxies. Most of the X-ray sources and all seven of the ULXs in NGC 5194 are located in, or close to, a spiral arm, suggesting a connection with recent star formation. The Chandra observations of M 51 were performed on 2000 June 20 and 2001 June 23 with the ACIS instrument. The background was stable in both observations, and effective exposure times of 14.9 and 26.8ks were obtained for the observations in 2000 and 2001, respectively. This table was created by the HEASARC in March 2007 based on &lt;a href="https://cdsarc.cds.unistra.fr/ftp/cats/J/ApJ/601/735"&gt;CDS catalog J/ApJ/601/735&lt;/a&gt; files table2.dat, table3.dat and table4.dat. This is a service provided by NASA HEASARC .

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Organization: National Aeronautics and Space Administration
ROSETTA-ORBITER 67P RPCIES 3 PRL V2.0

This dataset contains CALIBRATED DATA of the Rosetta RPCIES instrument taken during the Prelanding phase (PRL). The target of this phase was comet 67P/CHURYUMOV-GERASIMENKO 1 (1969 R1). Included are the data taken between 21 Jan 2014 and 19 Nov 2014. This version of the data has been reprocessed to remove an error introduced in the previous version.

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Organization: National Aeronautics and Space Administration
XTE All-Sky Slew Survey Catalog

The Rossi X-Ray Timing Explorer (RXTE) All-Sky Survey Slew Catalog contains the results of a serendipitous hard X-ray (3 - 20 keV), nearly all-sky (|b|&gt;10 degrees) survey based on observations by RXTE&#39;s Proportional Counter Array (PCA) which were performed during satellite reorientations in the period 1996 - 2002. The survey is 80% (90%) complete to a 4-sigma limiting flux of ~1.8 (2.5)x10&lt;sup&gt;-11&lt;/sup&gt; erg/s/cm&lt;sup&gt;2&lt;/sup&gt; in the 3 - 20 keV band. The achieved sensitivity in the 3 - 8 keV and 8 - 20 keV subbands is similar to and an order of magnitude higher than that of the previously record HEAO-1 A1 and HEAO-1 A4 all-sky surveys, respectively. A combined 7 x 10&lt;sup&gt;3&lt;/sup&gt; square degree area of the sky is sampled to flux levels below 10&lt;sup&gt;-11&lt;/sup&gt; erg/s/cm&lt;sup&gt;2&lt;/sup&gt; (3 - 20 keV). In total 294 sources are detected and localized to better than ~1 degree; 236 (80%) of these can be confidently associated with a known astrophysical object; 22 of these sources have multiple counterparts (17 have 2 counterparts and 5 have 3 counterparts) with which they have been identified, and as these are listed as separate entries, there are 321 entries in this table. 35 detected sources remain unidentified, although for 12 of these we report a likely soft X-ray counterpart from the ROSAT all-sky survey bright source catalog. Of the reliably identified sources, 63 have a local origin (Milky Way, LMC or SMC), 64 are clusters of galaxies and 100 are active galactic nuclei (AGN). The fact that the unidentified X-ray sources have hard spectra suggests that the majority of them are AGN, including highly obscured ones (hydrogen column density &gt; 10&lt;sup&gt;23&lt;/sup&gt; cm&lt;sup&gt;-2&lt;/sup&gt;). This dataset enabled the authors to present for the first time a log N - log S diagram for extragalactic sources above 4 x 10&lt;sup&gt;-12&lt;/sup&gt; erg/s/cm&lt;sup&gt;2&lt;/sup&gt; at 8 - 20 keV. This database table was created by the HEASARC in May 2004 based on &lt;a href="https://cdsarc.cds.unistra.fr/ftp/cats/J/A+A/418/927"&gt;CDS Catalog J/A+A/418/927&lt;/a&gt;. This is a service provided by NASA HEASARC .

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Organization: National Aeronautics and Space Administration
Aquarius Official Release Level 3 Rain-flagged Sea Surface Salinity Standard Mapped Image Ascending 7-Day Data V5.0

Aquarius Level 3 sea surface salinity (SSS) rain-flagged standard mapped image data contains gridded 1 degree spatial resolution SSS averaged over daily, 7 day, monthly, and seasonal time scales. This particular data set is the 7-Day, Ascending rain-flagged rain-flagged sea surface salinity product for version 5.0 of the Aquarius data set. Only retrieved values for Ascending passes have been used to create this product. The Aquarius instrument is onboard the AQUARIUS/SAC-D satellite, a collaborative effort between NASA and the Argentinian Space Agency Comision Nacional de Actividades Espaciales (CONAE). The instrument consists of three radiometers in push broom alignment at incidence angles of 29, 38, and 46 degrees incidence angles relative to the shadow side of the orbit. Footprints for the beams are: 76 km (along-track) x 94 km (cross-track), 84 km x 120 km and 96km x 156 km, yielding a total cross-track swath of 370 km. The radiometers measure brightness temperature at 1.413 GHz in their respective horizontal and vertical polarizations (TH and TV). A scatterometer operating at 1.26 GHz measures ocean backscatter in each footprint that is used for surface roughness corrections in the estimation of salinity. The scatterometer has an approximate 390km swath.

Tags: earth-science-salinity-density-oceans-salinity
Organization: National Aeronautics and Space Administration
GOODS-S MIPS 24 micron Photometry Catalog

The Great Observatories Origins Deep Survey (GOODS) aims to unite extremely deep observations from NASA's Great Observatories (Spitzer, Hubble and Chandra), ESA's Herschel and XMM-Newton, and the most powerful ground-based facilities. The aim is to survey the distant universe to the faintest flux limits across the broadest range of wavelengths. \n\nThis catalog provides a list of sources for the MIPS 24 micron imaging of the GOODS-S field. It is limited to flux densities greater than 80 microJy, where the source extraction is highly complete and reliable.

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Organization: National Aeronautics and Space Administration
XMM-Newton OB Stars Catalog

Following the advent of increasingly sensitive X-ray observatories, deep observations of early-type stars became possible. However, the results for only a few objects or clusters have until now been reported and there has been no large survey comparable to that based upon the ROSAT All-Sky Survey (RASS). A limited survey of X-ray sources, consisting of all public XMM observations (2XMMi) and slew survey data (XMMSL1), is now available. The X-ray counterparts to hot, massive stars have been searched for in these catalogs. About 300 OB stars were detected with XMM. Half of them were bright enough for a spectral analysis to be possible, and we make available the detailed spectral properties that were derived. The X-ray spectra of O stars are represented well by low (&lt; 1 keV) temperature components and seem to indicate that an absorption column is present in addition to the interstellar contribution. The X-ray fluxes are well correlated with the bolometric fluxes, with a scatter comparable to that of the RASS studies and thus larger than found previously with XMM for some individual clusters. These results contrast with those of B stars that exhibit a large scatter in the L&lt;sub&gt;X&lt;/sub&gt; - L&lt;sub&gt;bol&lt;/sub&gt; relation, no additional absorption being found, and the fits indicate a plasma at higher temperatures. Variability (either within one exposure or between multiple exposures) was also investigated whenever possible: short-term variations are far more rare than long-term ones (the former affects a few percent of the sample, while the latter concerns between one third and two thirds of the sources). This is a catalog of X-ray emitters amongst early-type stars following a correlation between the Reed (2003, AJ, 125, 2531) Catalog of galactic OB Stars and the 2XMMi Catalog (Watson et al. 2009, A&amp;A, 493, 339). See the reference paper for more details. This table was created by the HEASARC in November 2009 based on CDS table J/A+A/506/1055 file table1.dat. This is a service provided by NASA HEASARC .

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Organization: National Aeronautics and Space Administration
ROSETTA-ORBITER 67P RPCIES 5 EXT1 V1.0

This dataset contains DERIVED DATA of the Rosetta RPCIES instrument taken during the mission extension 2 (EXT2). The target of this phase was comet 67P/CHURYUMOV-GERASIMENKO 1 (1969 R1). Included are the data taken between 06 Apr 2016 and 30 Jun 2016.

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Organization: National Aeronautics and Space Administration
Aquarius Official Release Level 3 Rain-flagged Sea Surface Salinity Standard Mapped Image Ascending Mission Cumulative Data V5.0

Aquarius Level 3 sea surface salinity (SSS) standard mapped image data contains gridded 1 degree spatial resolution SSS averaged over daily, 7 day, monthly, and seasonal time scales. This particular data set is the mission cummulative, Ascending rain-flagged sea surface salinity product for version 5.0 of the Aquarius data set. Only retrieved values for Ascending passes have been used to create this product. The Aquarius instrument is onboard the AQUARIUS/SAC-D satellite, a collaborative effort between NASA and the Argentinian Space Agency Comision Nacional de Actividades Espaciales (CONAE). The instrument consists of three radiometers in push broom alignment at incidence angles of 29, 38, and 46 degrees incidence angles relative to the shadow side of the orbit. Footprints for the beams are: 76 km (along-track) x 94 km (cross-track), 84 km x 120 km and 96km x 156 km, yielding a total cross-track swath of 370 km. The radiometers measure brightness temperature at 1.413 GHz in their respective horizontal and vertical polarizations (TH and TV). A scatterometer operating at 1.26 GHz measures ocean backscatter in each footprint that is used for surface roughness corrections in the estimation of salinity. The scatterometer has an approximate 390km swath.

Tags: earth-science-salinity-density-oceans-salinity
Organization: National Aeronautics and Space Administration
MARS EXPRESS MARS MARSIS                                      EXPERIMENT DATA RECORD V2.0

This dataset contains the                    scientific telemetry produced by the MARSIS                    instrument after editing for duplicated and                    corrupted packets, together with geometric                    information computed on ground to locate                    observations in space and time. Both subsurface                    and ionosphere sounding data are included in                    the dataset.

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Organization: National Aeronautics and Space Administration