AndreaBozzo/ceres-open-data-index huggingface dataset:
Gazetteer of Planetary Nomenclature: Venus: 1:10 million-scale Altimetry Quadrangles: Lavinia

This set of maps diplays altimetric radar images of Venus approved by the International Astronomical Union (IAU).

Tags: altimetry, imagery, images, planets, quadrangles, radar, usgs, venus, working-group-for-planetary-system-nomenclature
Organization: National Aeronautics and Space Administration
Sentinel-3A OLCI Level-3M Global Mapped Earth-observation Reduced-Resolution (ERR) Inherent Optical Properties (IOP), Near Real-time (NRT) Data, version R2022.0

The Ocean Biology DAAC produces near real-time (quicklook) products using the best-available combination of ancillary data from meteorological and ozone data. As such, the inputs and the calibration used are less than optimal. Quicklook products provide a snapshot of the data during a short time period within a single orbit.

Tags: atmosphere, atmospheric-radiation, earth-science, ocean-optics, oceans
Organization: National Aeronautics and Space Administration
TRMM Precipitation Radar Spectral Latent Heating L3 1 month 0.5 degree x 0.5 degree V7 (TRMM_3H25) at GES DISC

3H25, "Monthly Spectral Latent Heating", produces 0.5 degree x 0.5 degree latent heating, Q1-QR, and Q2 profiles from PR rain

Tags: atmosphere, clouds, earth-science
Organization: National Aeronautics and Space Administration
ATLAS/ICESat-2 L3A Sea Ice Height Quick Look V006

ATL07QL is the quick look version of ATL07. Once final ATL07 files are available, the corresponding ATL07QL files will be removed. ATL07 contains along-track heights for sea ice and open water leads (at varying length scales) relative to the WGS84 ellipsoid (ITRF2014 reference frame) after adjustment for geoidal and tidal variations and inverted barometer effects. Height statistics and apparent reflectance are also provided. The data were acquired by the Advanced Topographic Laser Altimeter System (ATLAS) instrument on board the Ice, Cloud and land Elevation Satellite-2 (ICESat-2) observatory.

Tags: cryosphere, earth-science, sea-ice
Organization: National Aeronautics and Space Administration
IceBridge Narrow Swath ATM L1B Elevation and Return Strength with Waveforms V001

This data set contains spot elevation measurements with corresponding waveforms of Greenland, Arctic, and Antarctic sea ice. The data complement the <a href="https://nsidc.org/data/ilnirw1b">IceBridge ATM L1B Near-Infrared Waveforms</a> data, which are measured at near-infrared wavelength. Both of these narrow-swath data sets are closely related to the wide-swath <a href="https://nsidc.org/data/ilatmw1b">IceBridge ATM L1B Elevation and Return Strength with Waveforms</a> data set. The data were acquired as part of aircraft survey campaigns funded by Operation IceBridge.

Tags: cryosphere, earth-science, infrared-wavelengths, sea-ice, spectral-engineering
Organization: National Aeronautics and Space Administration
NASA 3D Models: Aqua

Aqua, Latin for water, is a NASA Earth Science satellite mission named for the large amount of information that the mission is collecting about the Earth's water cycle, including evaporation from the oceans, water vapor in the atmosphere, clouds, precipitation, soil moisture, sea ice, land ice, and snow cover on the land and ice. Additional variables also being measured by Aqua include radiative energy fluxes, aerosols, vegetation cover on the land, phytoplankton and dissolved organic matter in the oceans, and air, land, and water temperatures.

Tags: 3d-model, aqua, eyes-on-the-solar-system, satellite, spacecraft
Organization: National Aeronautics and Space Administration
Sentinel-3A OLCI Level-1B Earth-observation Reduced Resolution (ERR) Data, version 1

The Ocean and Land Colour Instrument (OLCI) is the successor to ENVISAT's Medium Resolution Imaging Spectrometer (MERIS) having additional spectral channels, different camera arrangements and simplified on-board processing. The OLCI is a push-broom instrument with five camera modules sharing the field of view. The field of view of the five cameras is arranged in a fan-shaped configuration in the vertical plane, perpendicular to the platform velocity. Each camera has an individual field of view of 14.2&#176; and a 0.6&#176; overlap with its neighbors. The whole field of view is shifted across track by 12.6 degrees away from the sun to minimize the impact of sun glint. OLCI is equipped with on-board calibration hardware based on sun diffusers. There are three sun diffusers--two 'white' diffusers dedicated to radiometric calibration and one dedicated to spectral calibration, with spectral reflectance features. The native resolution is approximately 300m, referred to as Full Resolution (FR). A Reduced Resolution (RR) processing mode provides Level-1B data at sampling rates decreased by a factor of four in both spatial dimensions resulting to resolution of approximately 1.2 km.

Tags: earth-science, ocean-optics, oceans
Organization: National Aeronautics and Space Administration
Sounder SIPS: Suomi NPP CrIMSS Level 3 Specific Quality Control Gridded Daily CLIMCAPS Full Spectral Resolution V2 at GES DISC

WARNING: To users of the derived product “co_mmr_midtrop” (carbon monoxide mass mixing ratio to dry air [kg/kg] at ~500 hPa). This variable has a significant bias due to a conversion error: the molecular weight of carbon dioxide (CO2, 44.01 g/mol) was used instead of carbon monoxide (CO, 28.01 g/mol). To correct, simply multiply “co_mmr_midtrop” by 28.01/44.01. Alternatively, derive a profile of mass mixing ratio from scratch using the retrieved column density values (“mol_lay/co_mol_lay”) in the Level 2 files. For further questions or concerns please contact the Sounder SIPS at: sounder.sips@jpl.nasa.gov

The CLIMCAPS (Community Long-term Infrared Microwave Coupled Product System) algorithm is used to analyze data from the Cross-track Infrared Sounder/Advanced Technology Microwave Sounder (CrIS/ATMS) instruments, also known as CrIMSS (Cross-track Infrared and Microwave Sounding Suite). The CrIS/ATMS instruments used for this product are on board the Suomi National Polar-orbiting Partnership (SNPP) platform and use the Full Spectral Resolution (FSR) data. The CrIS instrument is a Fourier transform spectrometer with a total of 2211 FSR infrared sounding channels covering the longwave (645-1095 cm-1), midwave (1210-1750 cm-1), and shortwave (2000-2550 cm-1) spectral regions. The ATMS instrument  is a cross-track scanner with 22 channels in spectral bands from 23 GHz through 183 GHz.
 
The CLIMCAPS algorithm uses an Optimal Estimation methodology and uses an a-priori first guess to start the process. A CLIMCAPS sounding is comprised of a set of parameters that characterizes the full atmospheric state and includes a variety of geophysical parameters derived from the CrIMSS data. These include surface temperature and infrared emissivity; full atmosphere profiles of temperature, water vapor and ozone; infrared effective cloud top characteristics; carbon monoxide, methane, carbon dioxide, sulfur dioxide, nitrous oxide, and nitric acid.
 
This daily one degree latitude by one degree longitude level-3 product starts with level-2 retrieval products with QC values of 0 (best), 1 (good), and 2 (don't use) which are provided for each variable. Specific QC accepts profile level from the top of the atmosphere down to the level where the QC determines that it is still good. Below this level, the data is rejected.

Tags: air-quality, altitude, atmosphere, atmospheric-chemistry, atmospheric-pressure, atmospheric-radiation, atmospheric-temperature, atmospheric-water-vapor, clouds, earth-science, land-surface, ocean-temperature, oceans, precipitation, surface-radiative-properties, surface-thermal-properties
Organization: National Aeronautics and Space Administration
AIRS/Aqua L1B Near Real Time (NRT) Infrared (IR) geolocated and calibrated radiances in BUFR format V005 (AIRIBRAD_NRT_BUFR) at GES DISC

WARNING: On 2021/09/23 the EOS Aqua executed a Deep Space Maneuver (DSM). In the DSM, the spacecraft is turned such that the normal Earth field of regard is deep space.

The thermal impact of the DSM caused a shift of the centroids of spectral response functions (SRF) of about 1% of the width of the SRF, equivalent to a frequency shift of 9 parts per million. This shift is reflected in the “spectral_freq” parameter (observed frequencies) in the L1b v5 files for each 6 minute granule. The magnitude of the effect on brightness temperatures (BT) depends on the spectral gradient of each channel. Maximum BT shifts are approximately +- 0.5 K, although many channels experience far smaller BT shifts. Approximately 1803 channels have BT shifts of less than 0.1 K and 575 channels are now shifted in BT by more than 0.1 K, while 231 of these channels have BT shifts greater than 0.2 K.

Users of the L1b v5 product who are concerned that these shifts may impact their science investigations and applications are encouraged to switch to the AIRS L1c v6.7.4 product, which, among many other improvements, converts the spectra to a fixed frequency grid. END OF WARNING.




This product is a 324-channel subset of the AIRIBRAD_NRT_005 product in which the AMSU footprints from AIRABRAD_NRT_005 product are also included and converted to binary Universal Form for the Representation of meteorological data (BUFR). The AIRS and AMSU Level 1B products differ from routine processing in 2 ways to meet the three hour latency requirements of the Land Atmosphere NRT Capability Earth Observing System (LANCE): (1) The NRT granules are produced without previous or subsequent granules if those granules are not available within 5 minutes, (2) the predictive ephemeris/attitude data are used rather than the definitive ephemeris/attitude. The consequences of these differences are described in the AIRS Near Real Time (NRT) data products document. 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.

Tags: aerosols, atmosphere, atmospheric-chemistry, earth-science, infrared-wavelengths, spectral-engineering
Organization: National Aeronautics and Space Administration
HIRENASD Experimental Data, Magnitude & Phase of Oscillatory Cp/displacement

OUTDATED information.  This data was replaced April 2012.  The originally posted HIRENASD reduced data contained numerous errors.  

Tecplot (ascii) and matlab files of the frequency response function estimates are found on this page.

and, remember, you can download all of this in one swift zip file download by going to https://c3.nasa.gov/dashlink/resources/485/
which is the link you get to if you follow through the webpage to DOWNLOAD ALL

For information regarding the files below, please download the documentation found below in the Support/Documentation category.

Tags: ames, dashlink, nasa
Organization: National Aeronautics and Space Administration
Terra MODIS Level-3 Global Mapped 11µm Daytime Sea Surface Temperature (SST) Data, version R2019.0

MODIS (or Moderate-Resolution Imaging Spectroradiometer) is a key instrument aboard the Terra (EOS AM) and Aqua (EOS PM) satellites. Terra's orbit around the Earth is timed so that it passes from north to south across the equator in the morning, while Aqua passes south to north over the equator in the afternoon. Terra MODIS and Aqua MODIS are viewing the entire Earth's surface every 1 to 2 days, acquiring data in 36 spectral bands, or groups of wavelengths (see MODIS Technical Specifications). These data will improve our understanding of global dynamics and processes occurring on the land, in the oceans, and in the lower atmosphere. MODIS is playing a vital role in the development of validated, global, interactive Earth system models able to predict global change accurately enough to assist policy makers in making sound decisions concerning the protection of our environment.

Tags: earth-science, national-geospatial-data-asset, ngda, ocean-temperature, oceans
Organization: National Aeronautics and Space Administration
SSC 4D Orbit Viewer Web Services API at the Space Physics Data Facility (SPDF)

This API allows any web application to offer an interactive 4D display of the trajectories of satellites known to SSCweb (Satellite Situation Center). The Space Physics Data Facility (SPDF) is the archive of non-solar data for the Heliospheric Science Division (HSD) at NASA's Goddard Space Flight Center.

Tags: api, gis, heliophysics, maps, satellite-trajectory, space-physics
Organization: National Aeronautics and Space Administration
Evaluating Prognostics Performance for Algorithms Incorporating Uncertainty Estimates

Uncertainty Representation and Management (URM) are an integral part of the prognostic system development.1As capabilities of prediction algorithms evolve, research in developing newer and more competent methods for URM is gaining momentum.2Beyond initial concepts, more sophisticated prediction distributions are obtained that are not limited to assumptions of Normality and unimodal characteristics. Most prediction algorithms yield non-parametric distributions that are then approximated as known ones for analytical simplicity, especially for performance assessment methods. Although applying the prognostic metrics introduced earlier with their simple definitions has proven useful, a lot of information about the distributions gets thrown away. In this paper, several techniques have been suggested for incorporating information available from Remaining Useful Life (RUL) distributions, while applying the prognostic performance metrics. These approaches offer a convenient and intuitive visualization of algorithm performance with respect to metrics like prediction horizon and α-λ performance, and also quantify the corresponding performance while incorporating the uncertainty information. A variety of options have been shortlisted that could be employed depending on whether the distributions can be approximated to some known form or cannot be parameterized. This paper presents a qualitative analysis on how and when these techniques should be used along with a quantitative comparison on a real application scenario. A particle filter based prognostic framework has been chosen as the candidate algorithm on which to evaluate the performance metrics due to its unique advantages in uncertainty management and flexibility in accommodating non-linear models and non-Gaussian noise. We investigate how performance estimates get affected by choosing different options of integrating the uncertainty estimates. This allows us to identify the advantages and limitations of these techniques and their applicability towards a standardized performance evaluation method.

Tags: ames, dashlink, nasa
Organization: National Aeronautics and Space Administration
Ground-Based Global Navigation Satellite System Observation Summary Data (30-second sampling, daily files) from NASA CDDIS

This dataset consists of ground-based Global Navigation Satellite System (GNSS) Observation Summary Data (30-second sampling, daily files of all distinct navigation messages received in one day) from the NASA Crustal Dynamics Data Information System (CDDIS). GNSS provide autonomous geo-spatial positioning with global coverage. GNSS data sets from ground receivers at the CDDIS consist primarily of the data from the U.S. Global Positioning System (GPS) and the Russian GLObal NAvigation Satellite System (GLONASS). Since 2011, the CDDIS GNSS archive includes data from other GNSS (Europe’s Galileo, China’s Beidou, Japan’s Quasi-Zenith Satellite System/QZSS, the Indian Regional Navigation Satellite System/IRNSS, and worldwide Satellite Based Augmentation Systems/SBASs), which are similar to the U.S. GPS in terms of the satellite constellation, orbits, and signal structure. The daily files contain summary information of one day of GPS or multi-GNSS observations (30-second sampling) data in RINEX format from a global permanent network of ground-based receivers, one file per site. More information about these data is available on the CDDIS website at https://cddis.nasa.gov/Data_and_Derived_Products/GNSS/daily_30second_data.html.

Tags: earth-science, geodetics, gravity-gravitational-field, solid-earth, tectonics
Organization: National Aeronautics and Space Administration
NASA 3D Models: Hubble Space Telescope Servicing Mission 4 (SM4)

Hubble Space Telescope (HST) Servicing Mission 4 (SM4) Carriers: For more information about the carriers see http://asd.gsfc.nasa.gov/archive/sm4/multimedia/gallery3.html#carriers

Tags: 3d-model, fss, hst, mule, oruc, satellite, slic, sm4, spacecraft
Organization: National Aeronautics and Space Administration
ALOS_PALSAR_LEVEL1.1

ALOS PALSAR Level 1.1

Tags: agriculture, biosphere, coastal-processes, cryosphere, earth-science, erosion-sedimentation, forest-science, frozen-ground, geomorphic-landforms-processes, glaciers-ice-sheets, land-surface, land-use-land-cover, landscape, ocean-waves, ocean-winds, oceans, sea-ice, snow-ice, solid-earth, surface-water, tectonics, terrestrial-ecosystems, terrestrial-hydrosphere, topography
Organization: National Aeronautics and Space Administration
Sentinel-3A OLCI Level-4 Global Binned Carbon Data, version 2022.0

The Ocean and Land Colour Instrument (OLCI) is the successor to ENVISAT's Medium Resolution Imaging Spectrometer (MERIS) having additional spectral channels, different camera arrangements and simplified on-board processing. The OLCI is a push-broom instrument with five camera modules sharing the field of view. The field of view of the five cameras is arranged in a fan-shaped configuration in the vertical plane, perpendicular to the platform velocity. Each camera has an individual field of view of 14.2° and a 0.6° overlap with its neighbors. The whole field of view is shifted across track by 12.6° away from the sun to minimize the impact of sun glint. OLCI is equipped with on-board calibration hardware based on sun diffusers. There are three sun diffusers--two 'white' diffusers dedicated to radiometric calibration and one dedicated to spectral calibration, with spectral reflectance features. The native resolution is approximately 300m, refered to as Full Resolution (FR). A Reduced Resolution (RR) processing mode provides Level-1B data at sampling rates decreased by a factor of four in both spatial dimensions resulting to resolution of approximately 1.2 km.

Tags: earth-science, ocean-chemistry, oceans
Organization: National Aeronautics and Space Administration
GPM DPR Ku Environment L2A 1.5 hours 5 km V07 (GPM_2AKuENV) at GES DISC

Version 07 is the current version of the data set. Older versions will no longer be available and have been superseded by Version 07.
.

This is environmental data that includes the profiles of atmospheric parameters assumed in the L2 retrieval algorithm. 

The 2AKu algorithm provides precipitation estimates from the Ku radar of the Dual-Frequency Precipitation Radar on the core GPM spacecraft. The product contains one swath of data corresponding to the scans of the Ku radar. This is a single-frequency retrieval of precipitation; no information from the Ka radar is used. The retrievals are performed at each radar range bin along the slant path of the radar IFOV. This is a single-frequency retrieval that relies on Ku-band data only. While the 2ADPR dual-frequency retrieval should give better overall estimates, that algorithm requires co-aligned Ka-band data. This 2AKu product will be produced independently and would not be impacted by any operational issues with the Ka-band radar.

Tags: atmosphere, atmospheric-water-vapor, earth-science, precipitation
Organization: National Aeronautics and Space Administration
Flight tracks, Northern California TRACON

This dataset contains the records of all the flights in the Northern California TRACON. The data was provided by the aircraft noise abatement office [(http://www.flyquietsfo.com/)](http://www.flyquietsfo.com/) of San Francisco International Airport.
The data cover Jan-Mar 2006. It is organized by day and flight. Each record contains some information about the flight and a sequence of 3D position and estimated speed.


This data contains thousands of trajectories that can be used for trajectory clustering. The data is used by the Aircraft Noise Abatement Office
to analyze the trajectories of aircraft flying in and out SFO. The objective is to minimize the noise pollution due to aircraft in the San Francisco Bay Area

The files have the extension "lt6" and are organized as follow, one file per day.

line number & explaination

<pre>1 TRACK OPNUM (TRACK header word and operation number)
2 eventid (Corralation number)
3 trackstart date (in time since 1900, A8 version four year digit)
4 trackstart time HH:MM:SS


5 trackend time HH:MM:SS
6 airportid
7 ACID (FLIGHTNUM/TAILNUMBER)
8 owner name
9 aircrafttype
10 aircraft category
11 beacon
12 adflag
13 waypoint
14 other_port (dest/origin)
15 runwayname


16 min alt
17 max alt
18 min range
19 max range
20 Count of trackpoints (to follow)
21 x,y,z,v,t (all points is meters relative to MRP, velocity and time from start of track)</pre>

Tags: ames, dashlink, nasa
Organization: National Aeronautics and Space Administration
Suomi-NPP VIIRS Level-3 Global Mapped 11µm Day/Night Sea Surface Temperature (SST) - Near Real-time (NRT) Data, version R2016.2

The Ocean Biology DAAC produces near real-time (quicklook) products using the best-available combination of ancillary data from meteorological and ozone data. As such, the inputs and the calibration used are less than optimal. Quicklook products provide a snapshot of the data during a short time period within a single orbit.

Tags: earth-science, ocean-temperature, oceans
Organization: National Aeronautics and Space Administration
Temperature Stratification in a Cryogenic Fuel Tank

A reduced dynamical model describing temperature stratification effects driven by natural convection in a liquid hydrogen cryogenic fuel tank has been developed. It accounts for cryogenic propellant loading, storage, and unloading in the conditions of normal, increased, and micro- gravity. The model involves multiple horizontal control volumes in both liquid and ullage spaces. Temperature and velocity boundary layers at the tank walls are taken into account by using correlation relations. Heat exchange involving the tank wall is considered by means of the lumped-parameter method. By employing basic conservation laws, the model takes into consideration the major multi-phase mass and energy exchange processes involved, such as condensation-evaporation of the hydrogen, as well as flows of hydrogen liquid and vapor in the presence of pressurizing helium gas. The model involves a liquid hydrogen feed line and a tank ullage vent valve for pressure control. The temperature stratification effects are investigated, including in the presence of vent valve oscillations. A simulation of temperature stratification effects in a generic cryogenic tank has been implemented in Matlab and results are presented for various tank conditions.

Tags: ames, dashlink, nasa
Organization: National Aeronautics and Space Administration
Intelligent Systems

The autonomous systems (AS) project, led by NASA Ames, is developing software for system operation automation. AS technology will help astronauts make more decisions without the assistance of people on the ground, providing software for automatic diagnosis of failures in a spacecraft of other system, and software to automate the execution of sequences of actions at the discretion of human operators. In June, AS software increased coordination capability while decreasing workload under varying operational scenarios, time delays, and levels of crew autonomy during the autonomous mission operations experiment in the Deep Space Habitat at Johnson.

Tags: ames, dashlink, nasa
Organization: National Aeronautics and Space Administration