AndreaBozzo/ceres-open-data-index huggingface dataset:
SAS-3 Y-Axis Pointed Obs Log

This database is the Third Small Astronomy Satellite (SAS-3) Y-Axis Pointed Observation Log. It identifies possible pointed observations of celestial X-ray sources which were performed with the y-axis detectors of the SAS-3 X-Ray Observatory. This log was compiled (by R. Kelley, P. Goetz and L. Petro) from notes made at the time of the observations and it is expected that it is neither complete nor fully accurate. Possible errors in the log are (i) the misclassification of an observation as a pointed observation when it was either a spinning or dither observation and (ii) inaccuracy of the dates and times of the start and end of an observation. In addition, as described in the HEASARC_Updates section, the HEASARC added some additional information when creating this database. Further information about the SAS-3 detectors and their fields of view can be found at: &lt;a href="http://heasarc.gsfc.nasa.gov/docs/sas3/sas3_about.html"&gt;http://heasarc.gsfc.nasa.gov/docs/sas3/sas3_about.html&lt;/a&gt; Disclaimer: The HEASARC is aware of certain inconsistencies between the Start_date, End_date, and Duration fields for a number of rows in this database table. They appear to be errors present in the original table. Except for one entry where the HEASARC corrected an error where there was a near-certainty which parameter was incorrect (as noted in the &#39;HEASARC_Updates&#39; section of this documentation), these inconsistencies have been left as they were in the original table. This database table was released by the HEASARC in June 2000, based on the SAS-3 Y-Axis pointed Observation Log (available from the NSSDC as dataset ID 75-037A-02B), together with some additional information provided by the HEASARC itself. This is a service provided by NASA HEASARC .

Tags: __
Organization: National Aeronautics and Space Administration
3rd Ariel-V SSI Catalog

The 3rd Ariel-V SSI Catalog contains a list of X-ray sources detected by the University of Leicester&#39;s Sky Survey Instrument (SSI) on the Ariel-V satellite, and published (in 2 papers) as the Ariel-V (3A) Catalog: Warwick et al. 1981, MNRAS, 197, 865 (the low galactic latitude sources) and McHardy et al. 1981, MNRAS, 197, 893 (the high galactic latitude sources). The catalog is based on observations extending over a 5.5 year period from 1974 October until 1980 March. The SSI had a field of view of 0.75 by 10.6 degrees (FWHM) and had an energy range from 2 to 18 keV. A detailed description of the SSI is given by Villa et al. 1976, MNRAS, 176, 609. For a more detailed discussion of how the 3A Catalog was created, please refer to the Warwick et al. (1981) and McHardy et al. (1981) papers. This online catalog was created by the HEASARC in March 2003 based on the merger of two original tables originally obtained from the ADC website (&lt;a href="https://heasarc.gsfc.nasa.gov/FTP/heasarc/dbase/misc_files/ariel3a/hilat.dat"&gt;https://heasarc.gsfc.nasa.gov/FTP/heasarc/dbase/misc_files/ariel3a/hilat.dat&lt;/a&gt; and &lt;a href="https://heasarc.gsfc.nasa.gov/FTP/heasarc/dbase/misc_files/ariel3a/lowlat.dat"&gt;https://heasarc.gsfc.nasa.gov/FTP/heasarc/dbase/misc_files/ariel3a/lowlat.dat&lt;/a&gt;). This is a service provided by NASA HEASARC .

Tags: __
Organization: National Aeronautics and Space Administration
CASSINI RSS RAW DATA SET - TIGR4 V1.0

The Cassini Radio Science Titan Gravity Science Experiment (TIGR4) Raw Data Archive is a time-ordered collection of radio science raw data acquired on April 29, May 1, 19, and 21, 2006 during the Tour subphase of the Cassini mission.

Tags: __
Organization: National Aeronautics and Space Administration
SMUVS Source Catalog

The Spitzer Matching Survey of the Ultra-VISTA Deep Stripes (SMUVS) consists of deep 3.6 and 4.5 imaging of three Ultra-VISTA near-infrared survey stripes in the COSMOS field. SMUVS reaches point-source sensitivities of about 25.0 AB mag at both 3.6 and 4.5 microns with a significance of 4 sigma, accounting for both survey sensitivity and source confusion. To this limit, the SMUVS catalogs contain a total of ~350,000 sources, each of which is detected significantly in at least one IRAC band. Because of its uniform and high sensitivity, relatively large area coverage, and the wide array of ancillary data available in COSMOS, the SMUVS survey will be useful for a large number of cosmological investigations.

Tags: __
Organization: National Aeronautics and Space Administration
ROSETTA-ORBITER 67P RSI 1/2/3 COMET ESCORT 2 0854 V1.0

This is a Rosetta Radio Science data set, collected during the COMET ESCORT 2 phase 2015-03-11 to 2015-06-30. It is a Global Gravity measurement at the comet 67P and covers the time 2015-06-22T21:05:55.000 to 2015-06-23T04:20:23.000.

Tags: __
Organization: National Aeronautics and Space Administration
INTEGRAL Public Pointed Science Window Data

Because of the pointing-slew-pointing dithering-nature of INTEGRAL operations, each observation of a celestial target is actually comprised of numerous individual S/C pointings and slews. In addition, there are periods within a given sequence where scheduled observations occur, i.e., engineering windows, yet the instruments still acquire data. The INTEGRAL Science Data Center (ISDC) generalizes all of these data acquisition periods into so-called `Science Windows.&#39; A Science Window (ScW) is a continuous time interval during which all data acquired by the INTEGRAL instruments result from a specific S/C attitude orientation state. Pointing (fixed orientation), Slew (changing orientation), and Engineering (undefined orientation) windows are all special cases of a Science Window. The key is that the same attitude information may be associated with all acquired data of a given Science Window. Note that it is possible to divide a time interval that qualifies as a Science Window under this definition into several smaller Science Windows using arbitrary criteria. The INTEGRAL Public Pointed Science Window Data Catalog is a subset of the INTEGRAL Science Window Data Catalog. It only includes pointed science windows that have non-private proprietary status and at least one instrument&#39;s &quot;good&quot; exposure time greater than zero. This database table was first created at the HEASARC in October 2004. It is a slightly modified mirror of the online database maintained by the ISDC at the URL &lt;a href="http://isdc.unige.ch/index.cgi?Data+browse"&gt;http://isdc.unige.ch/index.cgi?Data+browse&lt;/a&gt; &lt;p&gt; The HEASARC version of this table is updated automatically within a day of the ISDC updating their database table. This is a service provided by NASA HEASARC .

Tags: __
Organization: National Aeronautics and Space Administration
XMM-COSMOS X-Ray Selected Type-2 AGN

This table contains the results from a study of the multi-wavelength (from the mid-infrared to the hard X-ray) properties of a sample of 255 spectroscopically identified X-ray selected Type-2 AGN from the XMM-COSMOS survey. Most of them are obscured and the X-ray absorbing column density is determined by either X-ray spectral analyses (for 45% of the sample), or from hardness ratios. Spectral energy distributions (SEDs) were computed for all sources in the sample. The average SEDs in the optical band are dominated by the host-galaxy light, especially at low X-ray luminosities and redshifts. There is also a trend between X-ray and mid-infrared luminosity: the AGN contribution in the infrared is higher at higher X-ray luminosities. The authors have calculated bolometric luminosities, bolometric corrections, stellar masses and star formation rates (SFRs) for these sources using multi-component modeling to properly disentangle the emission associated with stellar light from that due to black hole accretion. For 90% of the sample, they also have the morphological classifications obtained with an upgraded version of the Zurich estimator of structural types (ZEST+). The authors find that, on average, type-2 AGN have lower bolometric corrections than type-1 AGN. Moreover, they confirm that the morphologies of AGN host-galaxies indicate that there is a preference for these type-2 AGN to be hosted in bulge-dominated galaxies with stellar masses greater than 10&lt;sup&gt;10&lt;/sup&gt; solar masses. For each source, this table contains the X-ray ID, spectroscopic redshift, logarithm of the 2-10keV luminosity, logarithm of the bolometric luminosity, bolometric correction, logarithm of the stellar mass, star formation rate, absolute magnitude M&lt;sub&gt;U&lt;/sub&gt;, absolute magnitude M&lt;sub&gt;V&lt;/sub&gt;, absolute magnitude M&lt;sub&gt;J&lt;/sub&gt; (Johnson-Kron-Cousin system), and the morphological class. This table was created by the HEASARC in October 2011 based on CDS table J/A+A/534/A110 file table1.dat. Some of the values for the name parameter in the HEASARC&#39;s implementation of this table were corrected in April 2018. This is a service provided by NASA HEASARC .

Tags: __
Organization: National Aeronautics and Space Administration
ROSETTA-ORBITER 67P RSI 1/2/3 COMET ESCORT 2 0663 V1.0

This is a Rosetta Radio Science data set, collected during the COMET ESCORT 2 phase 2015-03-11 to 2015-06-30. It is a Global Gravity measurement at the comet 67P and covers the time 2015-03-21T10:12:00.000 to 2015-03-21T12:21:55.500.

Tags: __
Organization: National Aeronautics and Space Administration
INTEGRAL/ISGRI Catalog of Variable X-Ray Sources

In 6 years of operation, INTEGRAL/ISGRI revealed more than 500 sources. Many of these sources are variable. Taking into account that nearly half of INTEGRAL/ISGRI sources are new and many of them are still unidentified, the variability properties of the sources can serve as additional parameters that may help to classify and identify the unknown sources. In order to study the variability properties of the sources detected by INTEGRAL/ISGRI, the authors have developed a method to quantify the variability of a source which is described in their paper. They have compiled a catalog of the sources that fit their criteria of variability. This catalog gives the values of fractional variability, the flux, and the corresponding 2-sigma errors of the sources from the INTEGRAL Reference Catalog (&lt;a href="https://cdsarc.cds.unistra.fr/ftp/cats/J/A+A/411/L59:"&gt;CDS Cat. J/A+A/411/L59:&lt;/a&gt; INTVARCAT in Browse) version 30. The data are given for 3 energy bands: 20-40, 40-100, and 100-200 keV. The exposure times of the sources are given for each energy band only if the source was detected in the given band. This table also gives the source type according to the reference catalog. If the source is localized in more then one map then the weighted mean values of the flux and variability are given. The sources active during specific time periods and not detected at the total variability map are indicated with &quot;b&quot; letter in the source_flag parameter. The sources detected only in the total variability map are indicated with an &quot;i&quot; letter value for this parameter, while a letter &quot;g&quot; indicates that the source was affected by the &quot;ghost&quot; of another source. The map&lt;sub&gt;det&lt;/sub&gt;* parameters specify the time period map(s) in which the source was visible, where the presence of an &#39;X&#39; following a map number means that the source was not detected in the respective significance map, and that a lower limit for the fractional variability is given in such a case. This table was created by the HEASARC in December 2010 based on &lt;a href="https://cdsarc.cds.unistra.fr/ftp/cats/J/A+A/522/A68"&gt;CDS Catalog J/A+A/522/A68&lt;/a&gt; file table3.dat. This is a service provided by NASA HEASARC .

Tags: __
Organization: National Aeronautics and Space Administration
ROSETTA-ORBITER 67P OSIWAC 3 EXT1-MTP025 RDR V3.0

This CODMAC level 3 data set contains radiometric calibrated image data in W/m^2/sr/nm, acquired by the OSIRIS Wide Angle Camera on the Rosetta spacecraft during the ROSETTA EXTENSION 1 mission phase, covering the period from 2016-01-12T23:25:00.000 to 2016-02-09T23:24:59.000. The prime target is comet 67P/Churyumov-Gerasimenko 1 (1969 R1). This version V3.0 supersedes previous deliveries of the same dataset with the following changes since the last version: Lien corrected dataset after the July and October 2018 PSA/PDS external peer reviews. Updated documentation and ancillary files, added document on bandpass filter. Updated SCIENCE_USER_GUIDE_V03.PDF to include one section about FAQ and one section about image data quality. Added shutter backtravel and readout issues to image quality map. Updated DATA_QUALITY_ID keyword in image header. Improved handling of images with missing packets. Included FITs files. Browse products changed to the same size as the original image. Corrected START_TIME and STOP_TIME for BALLISTIC_STACKED images. Improved calibration of WAC balistic mode images.

Tags: __
Organization: National Aeronautics and Space Administration
AllWISE Counterparts and Gaia Matches to ROSAT/2RXS X-Ray Sources

This table contains the 132,254 AllWISE counterparts and/or Gaia matches to 106,573 X-ray sources detected in the ROSAT 2RXS survey with Galactic latitude |b| &gt; 15 degrees. These are the brightest X-ray sources in the sky, but their position uncertainties and the sparse multi-wavelength coverage until now rendered the identification of their counterparts a demanding task with uncertain results. New all-sky multi-wavelength surveys of sufficient depth, like AllWISE and Gaia, and a new Bayesian statistics-based algorithm, NWAY, allow us, for the first time, to provide reliable counterpart associations. NWAY extends previous distance- and sky density-based association methods and, using one or more priors (e.g. colors, magnitudes), weights the probability that sources from two or more catalogs are simultaneously associated on the basis of their observable characteristics. Here, counterparts have been determined using a Wide-field Infrared Survey Explorer (WISE) color-magnitude prior. A reference sample of 4,524 XMM/Chandra and Swift X-ray sources demonstrates a reliability of 94.7 per cent for 2RXS sources. Combining the results of this work and of the matching of XMM-Newton Slew Survey, Version 2 (XMMSL2) sources also reported in this study (the results of the latter are available as the HEASARC&#39;s database table NWAYAWGXMM) with Chandra-COSMOS data, the authors propose a new separation between stars and AGN in the X-ray/WISE flux-magnitude plane, that is valid over six orders of magnitude. The authors also release the NWAY code and its user manual. NWAY was extensively tested with XMM-COSMOS data. Using two different sets of priors, the authors find an agreement of 96 per cent and 99 per cent with published Likelihood Ratio methods. Their results were achieved faster and without any follow-up visual inspection. With the advent of deep and wide area surveys in X-rays (e.g. SRG/eROSITA, Athena/WFI) and radio (ASKAP/EMU, LOFAR, APERTIF, etc.), NWAY will provide a powerful and reliable counterpart identification tool. For all the available options, see the NWAY manual at &lt;a href="https://github.com/JohannesBuchner/nway/raw/master/doc/nway-manual.pdf"&gt;https://github.com/JohannesBuchner/nway/raw/master/doc/nway-manual.pdf&lt;/a&gt;. This table was created by the HEASARC in February 2018 based on the &lt;a href="https://cdsarc.cds.unistra.fr/ftp/cats/J/MNRAS/473/4937"&gt;CDS catalog J/MNRAS/473/4937&lt;/a&gt; file 2rxswg.dat. This is a service provided by NASA HEASARC .

Tags: __
Organization: National Aeronautics and Space Administration
Aircraft Flux-Detrended: NRCC (FIFE)

The purpose of this study was to develop alternatives to ground-based measurements in order to obtain information required to predict the effects of soil and land use on the fluxes of greenhouse gases, the surface energy balance, and the water balance. Satellite-based algorithms have been developed via flux measurements from an aircraft to estimate vegetation and soil conditions on a regional scale. The purpose of the Twin Otter FIFE flights was to make measurements in the boundary layer of the fluxes of sensible and latent heat, momentum, and carbon dioxide, plus supporting meteorological parameters such as temperature, humidity, wind speed, and direction. Aircraft position, heading, and altitude were also recorded, as were several radiometric observations for use in interpretation of these data. The Twin Otter aircraft allows steady flight trajectories at low airspeed (50-60 [m][sec^-1]) down to levels less than 10 m above the ground. The aircraft is instrumented to measure the contribution of flux densities of momentum, sensible, and latent heat, and CO2 over a frequency range of 0 to 5 Hz (MacPherson et al., 1981). All the flux measurements were obtained with the eddy-correlation method, wherein the aircraft is equipped with an inertial platform, accelerometers, and a gust probe for measurement of earth-relative gusts in the x, y, and z directions. Gusts in these dimensions are then correlated with each other for momentum fluxes and with fluctuations in other variables to obtain the various scalar fluxes, such as temperature (for sensible heat flux) and water vapor mixing ratio (for latent heat flux). The fluctuations in all variables were calculated with three different methods (the arithmetic means removed, the linear trends removed, or filtered with a high-pass recursive filter) prior to the eddy correlation calculations. This data set contains the linearly detrended data. Through this research, it is hoped that techniques can be developed to utilize satellite data for global monitoring of crop health and climate change.

Tags: earth-science-altitude-atmosphere-barometric-altitude, earth-science-altitude-atmosphere-geopotential-height, earth-science-atmospheric-chemistry-atmosphere-carbon-and-hydrocarbon-compounds-atmospheric-car, earth-science-atmospheric-pressure-atmosphere-atmospheric-pressure-measurements, earth-science-atmospheric-radiation-atmosphere-heat-flux, earth-science-atmospheric-radiation-atmosphere-solar-irradiance, earth-science-atmospheric-temperature-atmosphere-surface-temperature, earth-science-atmospheric-temperature-atmosphere-surface-temperature-air-temperature, earth-science-atmospheric-temperature-atmosphere-surface-temperature-potential-temperature, earth-science-atmospheric-water-vapor-atmosphere-water-vapor-indicators-water-vapor, earth-science-atmospheric-winds-atmosphere-surface-winds, earth-science-atmospheric-winds-atmosphere-upper-level-winds, earth-science-vegetation-biosphere-vegetation-cover
Organization: National Aeronautics and Space Administration
NEW HORIZONS REX PLUTO CRUISE CALIBRATED V1.0

This data set contains Calibrated data taken by the New Horizons Radio Science Experiment instrument during the pluto cruise mission phase. This is VERSION 1.0 of this data set. The REX datasets over the mission include calibrations using known radio sources, Jupiter, and cold sky measurements; operational readiness tests (ORTs); internal test pattern calibration; and prime science radiometry and occultation observations during the Pluto Encounter.

Tags: __
Organization: National Aeronautics and Space Administration
AIRS/Aqua L3 daily CO2 in the free troposphere (AIRS+AMSU) 2.5 degrees x 2 degrees V005 (AIRX3C2D) at GES DISC

The Atmospheric Infrared Sounder (AIRS) is a grating spectrometer (R = 1200) aboard the second Earth Observing System (EOS) polar-orbiting platform, EOS Aqua. In combination with the Advanced Microwave Sounding Unit (AMSU) and the Humidity Sounder for Brazil (HSB), AIRS constitutes an innovative atmospheric sounding group of visible, infrared, and microwave sensors. This product is the AIRS mid-tropospheric Carbon Dioxide (CO2) Level 3 Daily Gridded Retrieval, from the AIRS and AMSU instruments on board of Aqua satellite. It is daily gridded data at 2.5x2 deg (lon)x(lat) grid cell size. The data is in mole fraction units (data x 10^6 =ppm in volume). This is a total tropospheric column property. The file format is HDF-EOS 2.12 corresponding to HDF4. This AIRS mid-tropospheric CO2 Level 3 daily Gridded Retrieval Product contains standard retrieval means, standard deviations and input counts as well as the latitude and longitude arrays giving the centers of the grid boxes. Each file covers a 24-hour period. The mean values are simply the arithmetic means of the individual CO2 retrievals which fall within that grid box over the period. The mid-tropospheric CO2 retrievals have been averaged and binned into 2.5 x 2 deg grid cells, from -180.0 to +180.0 deg longitude and from -60.0 to +90.0 deg latitude. For each grid map of 4-byte floating-point mean values there is a corresponding 4-byte floating-point map of standard deviation and a 2-byte integer grid map of counts. The counts map provides the user with the number of points per bin that were included in the mean.

Tags: earth-science-atmospheric-chemistry-atmosphere-carbon-and-hydrocarbon-compounds-atmospheric-car, earth-science-atmospheric-radiation-atmosphere-absorption, earth-science-atmospheric-radiation-atmosphere-radiative-forcing
Organization: National Aeronautics and Space Administration
ROSETTA-ORBITER 67P RSI 1/2/3 COMET ESCORT 1 0456 V1.0

This is a Rosetta Radio Science data set, collected during the COMET ESCORT 1 phase 2014-11-20 to 2015-03-10. It is a Global Gravity measurement at the comet 67P and covers the time 2014-11-25T02:48:05.000 to 2014-11-25T13:18:11.500.

Tags: __
Organization: National Aeronautics and Space Administration
WISE 3-Band Cryo Source Working Database

The WISE 3-Band Cryo Source Working Database (WDB) contains positions and photometry in the 3.4, 4.6 and 12 μm bands for 261,418,479 sources extracted from observations made during the WISE 3-Band Cryo survey phase, 6 August 2010 through 29 September 2010. WISE scanned approximately 30% of the sky during this period when the telescope and focal planes operated at a slightly higher temperature, but were still cooled by solid hydrogen in the inner cryogen tank.\n\n CAUTION: The 3-Band Cryo Source WDB is not a well-vetted, reliable list of infrared sources like the WISE All-Sky Release Source Catalog. The WDB contains both detections of real astronomical objects, as well as spurious detections of image artifacts, noise excursions, transient events such as cosmic rays, satellite trails and hot pixels. The WDB also contains redundant extractions of objects that fall in the overlap region between the 3-Band Cryo Atlas Tiles.\n\nThe WISE 3-Band Cryo Source WDB is best used as a resource to learn more about objects that are found in the All-Sky Release Source Catalog. The 3-Band Cryo observations offer a second, independent epoch of measurement for objects in 30% of the sky, so can be used to test for object motion, flux variability and reliability in the case of very faint sources. 3-Band Cryo WDB entries have been cross-correlated with the All-Sky Catalog and associated Catalog source information is provided in the 3-Band Cryo WDB records.

Tags: __
Organization: National Aeronautics and Space Administration