AndreaBozzo/ceres-open-data-index huggingface dataset:
Alouette 2 Topside Electron Density Profiles Manually Scaled at CRC

This data set, provided by the Communications Research Centre (CRC) in Ottawa, Canada, consists of electron density profiles derived from Alouette 2 Sweep-Frequency Sounder for the ionosphere above the F2 maximum (topside ionosphere). The data set was originally provided on an EBCDIC magnetic tape written on an IBM 360 computer. The electron density profiles were computed from digital values of frequency and virtual height, scaled from ionograms. The data are ordered chronologically and include about 11,000 profiles. Telemetry stations are not identified, but satellite location, Greenwich mean time of observation, solar zenith angle at the satellite, dip latitude at the satellite, total electron content down to the lowest height of topside signal reflection (normally near 300 km), and other relevant information is noted with each profile. The format gives sequences of numbers for each point scaled from the ionogram. These sequences include electron density at the successive points, and the coefficients a2, b3, b4, b5, etc. from which geometric heights can be calculated, using formulas 40 and 41 in J. E. Jackson, "The reduction of topside ionograms to electron-density profiles," Proceedings of the IEEE., p. 960, June 1969. These formulas can also be used to calculate interpolated density-height values. A CRC interpolation program available at NSSDC can be used with this data set. The ionograms were selected for their scientific interest and comprise only a very small portion of reductions possible from the available ionograms. Data obtained prior to March 9, 1970, are also available on microfiche from NSSDC.

Tags: thermalplasma
Organization: National Aeronautics and Space Administration
ROSETTA-ORBITER 67P RSI 1/2/3 ROSETTA EXTENSION 1 1421 V1.0

This is a Rosetta Radio Science data set, collected during the ROSETTA EXTENSION 1 phase 2016-01-01 to 2016-04-05. It is a Global Gravity measurement at the comet 67P and covers the time 2016-02-13T14:20:35.000 to 2016-02-13T22:50:42.500.

Tags: __
Organization: National Aeronautics and Space Administration
DAWN VIR CAL (RDR) VESTA VISIBLE SPECTRA V2.0

This data set contains the spectral  radiance (W/(m**2*sr*micron)) data from the Dawn VIR instrument  visible channel for all Vesta encounter mission phases. The data in  this version of the data set have been produced using an updated  calibration. The data cover the time period between 2011-05-03 and  2012-07-18.

Tags: __
Organization: National Aeronautics and Space Administration
ROSETTA-ORBITER 67P RSI 1/2/3 COMET ESCORT 3 0890 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 2015-07-11T15:05:15.000 to 2015-07-11T17:41:57.500.

Tags: __
Organization: National Aeronautics and Space Administration
Apollo 12 Solar Wind Measurements at the Lunar Surface 1-HR Data

This data set contains hourly averaged plasma parameters from the Apollo 12 Solar Wind Spectrometer. Four sets of hourly averaged parameters are computed, using as input data -- (1) all fine-time scale parameters (FTSP), (2) all FTSP computed from spectra with small rms error on curve fitting and thermal speeds less than one-half the bulk velocity, (3) all FTSP computed from spectra that satisfy the requirements of criterion 2 as well as having only one flow angle that can be directly measured, and (4) all FTSP computed from spectra that satisfy the requirements of criterion 2 as well as having both flow angles directly measureable. Contained in each of the 4 sets of averages are the proton density, alpha-to-proton ratio, bulk speed, angle of flow, number of spectra, and rms deviations of each average.

Tags: thermalplasma
Organization: National Aeronautics and Space Administration
ROSETTA-ORBITER 67P RSI 1/2/3 COMET ESCORT 2 0804 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 2015-05-24T07:00:45.000 to 2015-05-24T09:25:11.000.

Tags: __
Organization: National Aeronautics and Space Administration
Archived SAFARI 2000 Project Website, October 2008

This dataset contains an archived copy of the Safari 2000 Project website as of October 2008. This archived website is provided for informational purposes only. No updates to the website and associated content have been made since January of 2008. The database that once provided content for this website was transitioned to text and is included herein. SAFARI 2000 was an international regional science initiative developed for southern Africa to explore, study and address linkages between land-atmosphere processes and the relationship of biogenic, pyrogenic or anthropogenic emissions and the consequences of their deposition to the functioning of the biogeophysical and biogeochemical systems of southern Africa. This initiative was built around a number of on-going, already funded activities by NASA, the international community and African nations in the southern African region.

Tags: earth-science-atmospheric-chemistry-atmosphere, earth-science-environmental-impacts-human-dimensions, earth-science-land-use-land-cover-land-surface
Organization: National Aeronautics and Space Administration
Apollo 12 Solar Wind Measurements at the Lunar Surface 28-s Data

This data set contains the highest time resolution plasma data available (28 sec per spectrum) from the solar wind experiment onboard Apollo 12. Contained in each record are: time, proton density, alpha-to-proton ratio, bulk speed, angle of flow, most probable thermal speed, and various housekeeping and fit parameters relating to the reliability of the calculated plasma parameters. During the local lunar night there is no solar wind signal so there are data gaps of about 15 days each lunation.

Tags: thermalplasma
Organization: National Aeronautics and Space Administration
ROSETTA-ORBITER PRELANDING OSIWAC 2 EDR MTP008 V2.0

This data set contains images acquired by the OSIRIS Wide Angle Camera during the PRELANDING phase of the Rosetta mission at the comet 67P, covering the period from 2014-09-23T10:00:00.000 to 2014-10-24T09:59:59.000. This version V2.0 supersedes previous deliveries of the same dataset.

Tags: __
Organization: National Aeronautics and Space Administration
ASTER L1A Reconstructed Unprocessed Instrument Data V003

The Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) Level 1A (AST_L1A) contains reconstructed, instrument digital numbers (DNs) derived from the acquired telemetry streams of the telescopes: Visible and Near Infrared (VNIR), Shortwave Infrared (SWIR), and Thermal Infrared (TIR). Additionally, geometric correction coefficients and radiometric calibration coefficients are calculated and appended to the metadata but not applied. The AST_L1A product has a spatial resolution of 15 meters (m) for the VNIR bands, 30 m for the SWIR bands, and 90 m for the TIR bands. Known Issues * Users are advised that ASTER SWIR data acquired from April 2008 to the present exhibit anomalous saturation of values and anomalous striping. This effect is also present for some prior acquisition periods. Please refer to the ASTER SWIR User Advisory for more details. * Data acquisition gaps: On November 28, 2024, one of Terra's power-transmitting shunt units failed. As a result, there was insufficient power to maintain functionality of the ASTER instrument. ASTER resumed acquisitions for the VNIR bands on January 18, 2025, and for the TIR bands on April 15, 2025. Users should note the data gap in ASTER acquisitions from November 28, 2024, through January 16, 2025, for VNIR observations, and a gap from November 28, 2024, through April 15, 2025, for TIR acquisitions. Improvements/Changes from Previous Version * Geometric correction to account for Earth's rotation angle and nutation. * Geometric correction for geolocation errors associated with nighttime TIR scenes. * Radiometric correction to account for degradation of onboard calibration lamps. * Starting June 23, 2021, radiometric calibration coefficient Version 5 (RCC V5) will be applied to newly observed ASTER data and archived ASTER data products. Details regarding RCC V5 are described in the following journal article. * Tsuchida, S., Yamamoto, H., Kouyama, T., Obata, K., Sakuma, F., Tachikawa, T., Kamei, A., Arai, K., Czapla-Myers, J.S., Biggar, S.F., and Thome, K.J., 2020, Radiometric Degradation Curves for the ASTER VNIR Processing Using Vicarious and Lunar Calibrations: Remote Sensing, v. 12, no. 3, at https://doi.org/10.3390/rs12030427.

Tags: earth-science-infrared-wavelengths-spectral-engineering-reflected-infrared, earth-science-infrared-wavelengths-spectral-engineering-thermal-infrared, earth-science-visible-wavelengths-spectral-engineering-visible-imagery
Organization: National Aeronautics and Space Administration
MARS EXPRESS MARS MRS 1/2/3 EXTENDED MISSION 3 3021 V1.0

This is a Mars Express Radio Science data set, collected during the extended mission phase 2010-01-01 to 2012-12-31. It is a Global Gravity measurement and covers the time 2011-07-19T22:40:44.000 to 2011-07-19T23:05:10.949.

Tags: __
Organization: National Aeronautics and Space Administration
Apollo 14 ALSEP Electron and Proton Spectra, offline at NSSDC

The data are 19.2-s count rates of electrons and protons at several energy steps between 40 eV and 20 keV.  Two electrostatic analyzers, each feeding 6 detectors, are oriented vertical from the lunar surface and 60 degrees from vertical, towards lunar west.

Tags: energeticparticles
Organization: National Aeronautics and Space Administration
NEW HORIZONS  LORRI PLUTO ENCOUNTER  CALIBRATED V3.0

This data set contains Calibrated data taken by the New Horizons  Long Range Reconnaissance Imager  instrument during the  Pluto encounter  mission phase. This is VERSION 3.0 of this data set.   This data set contains LORRI observations taken during the  the Approach (Jan-Jul, 2015), Encounter, Departure, and  Transition mission sub-phases, including flyby observations  taken on 14 July, 2015, and departure and calibration data  through late October, 2016. Departure observations include  a ring search of the Pluto system and 1994 JR1 observations.  This data set completes the Pluto mission phase deliveries for  LORRI.   This is version 3.0 of this dataset. Changes since version 2.0 include  the addition of data downlinked between the end of January, 2016 and the end of October, 2016, completing the delivery of all data covering the  Pluto Encounter and subsequent Calibration Campaign. It includes multi-  map observations from the Approach phase, observations of the moons, hi- res, full-frame observations from Pluto Encounter and Departure, sliver  maps, and ring search observations. There may be some overlap between  prior datasets and this dataset, due to only partial, windowed, or lossy data in prior datasets. Observations at closest approach to Pluto are  marked with _CA in the Request ID. This dataset also includes functional tests from the Calibration Campaign, including a regular observation of  NGC3532. Finally it includes the first set of distant KBO observations.   Also, updates were made to the calibration files, documentation, and  catalog files.   There were minor changes to the level 2 LORRI calibration process, as  well as to the LORRI calibration constants for the final Pluto P3 PDS  delivery.   The process change involves gap removal during calibration. Files  with gaps come in many flavors, depending on where the gap lies within  the image. This update recognizes some additional possiblities, mainly  that the gap might be close to the bottom or top of the image (and  therefore the previous algorithm would fail because it filled the gap  with median pixel info from both above and below the gap). The new  algorithm will take the info from one side of the gap exclusively,  when appropriate.

Tags: __
Organization: National Aeronautics and Space Administration
ROSETTA-ORBITER 67P OSINAC 4 EXT2-MTP030 RDR-INFLDSTR V1.0

This CODMAC level 4 data set contains solar stray-light corrected, in-field stray-light corrected,  radiometric calibrated and geometric distortion corrected  (resampled) image data in W/m^2/sr/nm,  acquired by the OSIRIS Narrow Angle Camera on the Rosetta spacecraft  during the ROSETTA EXTENSION 2 mission phase, covering the period  from 2016-05-31T23:25:00.000 to 2016-06-28T23:24:59.000. The prime target is comet 67P/Churyumov-Gerasimenko 1 (1969 R1). This version V1.0 is the first version of this dataset: Lien corrected dataset after September 2019 PSA/PDS external peer review.

Tags: __
Organization: National Aeronautics and Space Administration
Alouette-2 Topside Sounder Ionogram Data

These ionograms were digitized from the original Alouette 2 7-track analog telemetry tapes using the facilities of the former Data Evaluation Laboratory at the NASA/GSFC. This data restoration project is headed by Dr. R.F. Benson (NASA/GSFC). Ionograms were digitized at the rate of 40,000 16-bit samples/sec. This sample rate is higher than the Nyquist frequency of 30 kHz. The sample frequency of 40 kHz provides a measurement every 25 microseconds corresponding to an apparent range (c*t/2) interval of 3.75 km. The ionograms consist of swept-frequency operation (there is no fixed-frequency operation as in ISIS-1 and ISIS-2). The time resolution between ionograms is typically 31 seconds.

Tags: akr, ducted-echoes, fai, field-aligned-irregularities, ground-echoes, ground-reflections, ionospheric-echoes, ionospheric-reflections, plasma-resonance, plasma-waves, solar-type-iii-bursts, spectrum-ionogram, swept-frequency-sounder, topside-ionosphere, topside-sounder, upper-hybrid-noise-band, wave-scattering, waves-active
Organization: National Aeronautics and Space Administration
VENUS CLIMATE ORBITER RS DOPPLER PROFILES V1.0

The VCO RS OCC data set contains products acquired by radio science experiment using Ultra-Stable Oscillator onboard the Venus Climate Orbiter (VCO, also known as PLANET-C and AKATSUKI) spacecraft. The data files are provided in table format. The associated metadata are stored in the PDS labels. This products includes RS Doppler and signal intensity time series.

Tags: __
Organization: National Aeronautics and Space Administration
ROSETTA-ORBITER 67P RSI 1/2/3 COMET ESCORT 2 0745 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 2015-05-02T07:44:55.000 to 2015-05-02T12:44:07.500.

Tags: __
Organization: National Aeronautics and Space Administration
Alouette-2 Topside Sounder Average Ionogram over Quito, Equador: QUI, Latitude -1, Longitude 281

This Ionogram was digitized from the original Alouette 2 Analog Telemetry Data on 7-Track Tape using the Facilities of the Data Evaluation Laboratory at NASA GSFC, Code 500. This Data Restoration Project is headed by Dr. R.F. Benson, NASA GSFC, Code 692. Ionograms were digitized at the Rate of 40,000 16-bit samples/s. This Sample Rate is higher than the Nyquist Frequency of 30 kHz. The Sample Frequency of 40 kHz provides a Measurement every 25 ms corresponding to an Apparent Range Interval of c*t/2, where c is the Speed of Light, or 3.747 km. Each Ionogram consists of a Fixed Frequency Portion and a Swept Frequency Portion. The Time Resolution is typically 31 s.

Tags: auroral-kilometric-radiation-akr, ducted-echoes, field-aligned-irregularities-fai, ground-echoes, ground-reflections, ionospheric-echoes, ionospheric-reflections, plasma-resonance, plasma-waves, solar-type-iii-bursts, spectrum, swept-frequency-sounder, topside-ionosphere, topside-sounder, upper-hybrid-noise-band, wave-scattering, waves-active-ionogram
Organization: National Aeronautics and Space Administration
ASTER L2 Surface Kinetic Temperature V004

The Terra Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) Surface Kinetic Temperature (AST_08) V004 product delivers surface kinetic temperature data derived from the five Thermal Infrared (TIR) bands (Bands 10–14), collected during both daytime and nighttime observations. The AST_08 product has a spatial resolution of 90 meters (m) for the TIR bands. This Level 2 (L2) product is produced using the Temperature/Emissivity Separation (TES) algorithm, which processes atmospherically corrected ASTER surface radiance (TIR) data to estimate emissivity and compute temperature. In Version 4, atmospheric correction has been significantly improved by integrating Modern-Era Retrospective analysis for Research and Applications Version 2 (MERRA-2) data, enhancing the accuracy of temperature retrievals. Known Issues * Level 2 products that are on the international date line/anti-meridian have incorrect bounding coordinates for the UTM zone defined in the file metadata. Improvements/Changes from Previous Versions * SWIR Crosstalk Correction: Applies a correction to reduce stray light effects in the SWIR bands, enhancing data quality by minimizing artifacts. Enhanced Atmospheric Correction: Version 4 uses Modern-Era Retrospective analysis for Research and Applications Version 2 (MERRA-2) data as the primary source for atmospheric parameters (ozone, water vapor, pressure, and temperature), improving the precision of emissivity calculations. Fallback Mechanisms: When MERRA-2 data are unavailable, the product employs Global Data Assimilation System (GDAS) data as a backup, with climatology data serving as a final fallback to ensure continuous processing. Radiometric Calibration Update: Version 4 applies Radiometric Calibration Coefficient Version 5 (RCC V5) to improve the radiometric accuracy of the raw DNs, based on research by [Tsuchida and others (2020)](https://doi.org/10.3390/rs12030427), published in Remote Sensing.

Tags: earth-science-ocean-temperature-oceans-sea-surface-temperature, earth-science-surface-thermal-properties-land-surface-land-surface-temperature
Organization: National Aeronautics and Space Administration
ROSETTA-ORBITER COMET ESCORT1 OSINAC 3 RDR MTP 010 V1.0

This data set contains calibrated images acquired by the OSIRIS Narrow AngleCamera during the escort phase of the Rosetta mission at the comet 67P,covering the period from 2014-11-21 to 2014-12-19.

Tags: __
Organization: National Aeronautics and Space Administration
ROSETTA-ORBITER 67P OSIWAC 3 ESC3-MTP019 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 COMET ESCORT 3 mission phase, covering the period from 2015-07-28T23:25:00.000 to 2015-08-25T23:24:59.000. 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.

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Organization: National Aeronautics and Space Administration
MARS EXPRESS MARS MRS 1/2/3 EXTENDED MISSION 8 4264 V1.0

This is a Mars Express Radio Science data set, collected during the extended mission phase 2021-01-01 to 2022-12-31. It is a Occultation measurement and covers the time 2022-05-22T02:35:18.000 to 2022-05-22T05:10:03.000.

Tags: __
Organization: National Aeronautics and Space Administration
ROSETTA-ORBITER 67P RPCIES 3 EXT2 V1.0

This dataset contains CALIBRATED 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.

Tags: __
Organization: National Aeronautics and Space Administration
ASTER Global Emissivity Dataset, Monthly, 0.05 deg, HDF5 V041

The Terra Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) Global Emissivity Dataset (GED) is a collection of monthly files (see known issues for gaps) for each year of global emissivity. The ASTER GED data products are generated for 2000 through 2015 using the ASTER Temperature Emissivity Separation (TES) algorithm atmospheric correction method. This algorithm method uses Moderate Resolution Imaging Spectroradiometer (MODIS) Atmospheric Profiles product MOD07 and the MODerate spectral resolution TRANsmittance (MODTRAN) 5.2 radiative transfer model along with the snow cover data from the standard monthly MODIS/Terra snow cover monthly global 0.05 degree product [MOD10CM](https://doi.org/10.5067/MODIS/MOD10CM.006), and vegetation information from the MODIS monthly gridded NDVI product [MOD13C2](https://doi.org/10.5067/MODIS/MOD13C2.006). ASTER GED Monthly V041 data products are offered in Hierarchical Data Format 5 (HDF5). The National Aeronautics and Space Administration’s (NASA) Jet Propulsion Laboratory (JPL), California Institute of Technology, developed the ASTER GED product. Known Issues * Since ASTER GED Monthly V041 uses MOD10CM as an input, there will be some months that were unable to be created due to missing data. Please see the [MODIS/Terra Data Outages Webpage](https://landweb.modaps.eosdis.nasa.gov/knownissue?as=61) for more information. Improvements/Changes from Previous Versions * The removal of the extraneous snow layer. * The optimized rows and columns for the data layers. * The updated SDS Attributes in the metadata for bounding coordinates. * The previous ASTER GED V004 product incorporated an emissivity adjustment to the V003 product. See [“The ASTER Global Emissivity Dataset (ASTER GED): Mapping Earth’s emissivity at 100 meter spatial scale”](https://doi.org/10.1002/2015GL065564) publication Section 4 for more information.

Tags: earth-science-land-use-land-cover-land-surface-land-use-land-cover-classification-vegetation-in, earth-science-surface-radiative-properties-land-surface-emissivity, earth-science-surface-thermal-properties-land-surface-land-surface-temperature, earth-science-topography-land-surface-terrain-elevation, earth-science-topography-land-surface-terrain-elevation-topographical-relief-maps
Organization: National Aeronautics and Space Administration
ROSETTA-ORBITER 67P OSIWAC 4 PRL-MTP008 RDR-STRLIGHT V1.0

This CODMAC level 4 data set contains solar stray light corrected, radiometric calibrated and geometric distortion corrected (resampled) image data in W/m^2/sr/nm, acquired by the OSIRIS Wide Angle Camera on the Rosetta spacecraft during the PRELANDING mission phase, covering the period from 2014-09-23T10:00:00.000 to 2014-10-24T09:59:59.000. The prime target is comet 67P/Churyumov-Gerasimenko 1 (1969 R1). This version V1.0 is the first version of this dataset: Lien corrected dataset after October 2018 PSA/PDS external peer review.

Tags: __
Organization: National Aeronautics and Space Administration
ROSETTA-ORBITER 67P SREM 5 PRELANDING MTP004 V1.0

This data set contains derived electron and proton flux energies in MeV from the Standard Radiation Environment Monitor (SREM) instrument on the Rosetta spacecraft, which had the primary target of comet 67P/Churyumov-Gerasimenko. These are CODMAC Level 5 derived data, and measure the radiation in the spacecraft environment during the Medium Term Plan 4 period of the PRELANDING mission phase.

Tags: __
Organization: National Aeronautics and Space Administration
MARS EXPRESS MARS MRS 1/2/3 EXTENDED MISSION 8 4281 V1.0

This is a Mars Express Radio Science data set, collected during the extended mission phase 2021-01-01 to 2022-12-31. It is a Occultation measurement and covers the time 2022-06-04T05:15:28.000 to 2022-06-04T07:45:04.000.

Tags: __
Organization: National Aeronautics and Space Administration