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ROSETTA-ORBITER 67P OSINAC 4 PRL-MTP001 RDR-REFLECT V1.0

This CODMAC level 4 data set contains radiometric calibrated and geometric distortion corrected (resampled) image data in reflectance units (normalized and thus without unit), acquired by the OSIRIS Narrow Angle Camera on the Rosetta spacecraft during the PRELANDING mission phase, covering the period from 2014-01-20T10:00:00.000 to 2014-05-07T12:47:59.000. 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.

ROSETTA-ORBITER CHECKOUT OSIWAC 4 CR5 RDR-REFLECT V1.0

This CODMAC level 4 data set contains radiometric calibrated and geometric distortion corrected (resampled) image data in reflectance units (normalized and thus without unit), acquired by the OSIRIS Wide Angle Camera on the Rosetta spacecraft during the CRUISE 5 mission phase, covering the period from 2009-12-14T00:00:00.000 to 2010-05-16T23:59:59.000. The prime objective was commissioning / calibration. Several targets of opportunity were observed, but none of them is identifiable as prime target. This version V1.0 is the first version of this dataset.

ROSETTA-ORBITER 67P OSINAC 4 EXT3-MTP032 RDR-REFLECT V1.0

This CODMAC level 4 data set contains radiometric calibrated and geometric distortion corrected (resampled) image data in reflectance units (normalized and thus without unit), acquired by the OSIRIS Narrow Angle Camera on the Rosetta spacecraft during the ROSETTA EXTENSION 3 mission phase, covering the period from 2016-07-26T23:25:00.000 to 2016-08-09T23:24:59.000. 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 October 2018 PSA/PDS external peer review.

ROSETTA-ORBITER 67P OSINAC 4 ESC1-MTP012 RDR-REFLECT V1.0

This CODMAC level 4 data set contains radiometric calibrated and geometric distortion corrected (resampled) image data in reflectance units (normalized and thus without unit), acquired by the OSIRIS Narrow Angle Camera on the Rosetta spacecraft during the COMET ESCORT 1 mission phase, covering the period from 2015-01-13T23:25:00.000 to 2015-02-10T23:24:59.000. 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 October 2018 PSA/PDS external peer review.

ROSETTA-ORBITER EARTH OSIWAC 4 EAR3 RDR-REFLECT V1.0

This CODMAC level 4 data set contains radiometric calibrated and geometric distortion corrected (resampled) image data in reflectance units (normalized and thus without unit), acquired by the OSIRIS Wide Angle Camera on the Rosetta spacecraft during the EARTH SWING-BY 3 mission phase, covering the period from 2009-09-14T00:00:00.000 to 2009-12-13T23:59:59.000. The prime target is planet Earth. This version V1.0 is the first version of this dataset.

NOAA-21 VIIRS Global Mapped Normalized Difference Vegetation Index Land Reflectance Data, version R2022.0

The Visible and Infrared Imager/Radiometer Suite (VIIRS) is a multi-disciplinary instrument that is being flown on the Joint Polar Satellite System (JPSS) series of spacecraft, including the Suomi National Polar-orbiting Partnership (S-NPP) that launched in October 2011. JPSS is a multi-platform, multi-agency program that consolidates the polar orbiting spacecraft of NASA and the National Oceanic and Atmospheric Administration (NOAA). S-NPP is the initial spacecraft in this series, and VIIRS is the successor to MODIS for Earth science data product generation. VIIRS has 22 spectral bands ranging from 412 nm to 12 nm. There are 16 moderate-resolution bands (750m at nadir), 5 image-resolution bands (375m), and one day-night band (DNB).

restrictedus-pdApr 2025View details →

ROSETTA-ORBITER EARTH OSINAC 4 EAR3 RDR-REFLECT V1.0

This CODMAC level 4 data set contains radiometric calibrated and geometric distortion corrected (resampled) image data in reflectance units (normalized and thus without unit), acquired by the OSIRIS Narrow Angle Camera on the Rosetta spacecraft during the EARTH SWING-BY 3 mission phase, covering the period from 2009-09-14T00:00:00.000 to 2009-12-13T23:59:59.000. The prime target is planet Earth. This version V1.0 is the first version of this dataset.

ROSETTA-ORBITER 67P OSIWAC 4 EXT3-MTP033 RDR-REFLECT V1.0

This CODMAC level 4 data set contains radiometric calibrated and geometric distortion corrected (resampled) image data in reflectance units (normalized and thus without unit), acquired by the OSIRIS Wide Angle Camera on the Rosetta spacecraft during the ROSETTA EXTENSION 3 mission phase, covering the period from 2016-08-09T23:25:00.000 to 2016-09-02T06:39:59.000. 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.

Aqua MODIS Global Mapped Normalized Difference Vegetation Index Land Reflectance Data, version R2022.0

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.

ROSETTA-ORBITER 67P OSIWAC 4 ESC2-MTP016 RDR-REFLECT V1.0

This CODMAC level 4 data set contains radiometric calibrated and geometric distortion corrected (resampled) image data in reflectance units (normalized and thus without unit), acquired by the OSIRIS Wide Angle Camera on the Rosetta spacecraft during the COMET ESCORT 2 mission phase, covering the period from 2015-05-05T23:25:00.000 to 2015-06-02T23:24:59.000. 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 October 2018 PSA/PDS external peer review.

restrictednotspecifiedApr 2025View details →

NOAA-21 VIIRS Global Binned Normalized Difference Vegetation Index Land Reflectance Data, version R2022.0

Land Surface Reflectance - GLS2000

The surface reflectance CDR is generated from specialized software called Landsat Ecosystem Disturbance Adaptive Processing System (LEDAPS). LEDAPS was originally developed through a National Aeronautics and Space Administration (NASA) Making Earth System Data Records for Use in Research Environments (MEaSUREs)grant by NASA Goddard Space Flight Center (GSFC) and the University of Maryland (Masek et al., 2006). The software applies Moderate Resolution Imaging spectroradiometer (MODIS) atmospheric correction routines to Level-1 Landsat Thematic Mapper (TM) or Enhanced Thematic Mapper Plus (ETM+)data. Water,vapor, ozone, geopotential height, aerosol optical thickness,and digital elevation are input with Landsat data to the Second Simulation of a Satellite Signal in the Solar Spectrum (6S) radiative transfer models to generate top of atmosphere (TOA)reflectance, surface reflectance, brightness temperature, and masks for clouds, cloud shadows, adjacent clouds, land, and water. The result is delivered as the Landsat surface reflectance CDR.

ROSETTA-ORBITER 67P OSIWAC 4 ESC1-MTP010 RDR-REFLECT V1.0

This CODMAC level 4 data set contains radiometric calibrated and geometric distortion corrected (resampled) image data in reflectance units (normalized and thus without unit), acquired by the OSIRIS Wide Angle Camera on the Rosetta spacecraft during the COMET ESCORT 1 mission phase, covering the period from 2014-11-21T23:25:00.000 to 2014-12-19T23:24:59.000. 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 October 2018 PSA/PDS external peer review.

ROSETTA-ORBITER 67P OSINAC 4 ESC3-MTP020 RDR-REFLECT V1.0

This CODMAC level 4 data set contains radiometric calibrated and geometric distortion corrected (resampled) image data in reflectance units (normalized and thus without unit), acquired by the OSIRIS Narrow Angle Camera on the Rosetta spacecraft during the COMET ESCORT 3 mission phase, covering the period from 2015-08-25T23:25:00.000 to 2015-09-22T23:24:59.000. 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 October 2018 PSA/PDS external peer review.

TRMM Ground Validation Radar Site 3D Reflectivity L2 1 hour V7 (TRMM_2A55UW) at GES DISC

This dataset is part of the University of Washington TRMM Ground Validation products. Multiple-level cartesian grid containing output of NCAR SPRINT interpolation of CZ and VR fields of 1C51UW. Horizontal extent is 150x150km and resolution is 2km. Vertical range is 2-15km and resolution is 1km. Unlike other products, 2A55UW is not created for every volume but only for volumes of interest. These are defined as volumes within +/-15 minutes of overpass times and volumes with significant rainfall (areal rainfall rate greater or equal 0.15mm/hr). A key component of the TRMM project is the Ground Validation (GV) effort which consists of collecting data from ground-based radar, rain gauges and disdrometers. The data is quality-controlled, and then validation products are produced for comparison with TRMM satellite products. The four primary GV sites are: + Darwin, Australia; + Houston, Texas; + Kwajalein, Republic of the Marshall Islands; + Melbourne, Florida. A significant effort is also being supported at NASA Wallops Flight Facility (WFF) and vicinity to provide high quality, long-term measurements of rain rates (via a network of rain gauges collocated with National Weather Service gauges), as well as drop size distributions (DSD) using a variety of instruments, including impact-type Joss Waldvogel, laser-optical Parsivel, as well as two-dimensional video disdrometers. DSD measurements are also being collected at Melbourne and Kwajalein using Joss-Waldvogel disdrometers.

ROSETTA-ORBITER EARTH OSIWAC 4 EAR1 RDR-REFLECT V1.0

This CODMAC level 4 data set contains radiometric calibrated and geometric distortion corrected (resampled) image data in reflectance units (normalized and thus without unit), acquired by the OSIRIS Wide Angle Camera on the Rosetta spacecraft during the EARTH SWING-BY 1 mission phase, covering the period from 2004-10-17T00:00:00.000 to 2005-04-04T23:59:59.000. The prime target is planet Earth. This version V1.0 is the first version of this dataset.

ROSETTA-ORBITER CHECKOUT OSINAC 4 CVP1 RDR-REFLECT V1.0

This CODMAC level 4 data set contains radiometric calibrated and geometric distortion corrected (resampled) image data in reflectance units (normalized and thus without unit), acquired by the OSIRIS Narrow Angle Camera on the Rosetta spacecraft during the COMMISSIONING 1 mission phase, covering the period from 2004-03-05T00:00:00.000 to 2004-06-06T23:59:59.000. The prime objective was commissioning / calibration. Several targets of opportunity were observed, but none of them is identifiable as prime target. This version V1.0 is the first version of this dataset.

Sentinel-3B OLCI Level-3M Global Mapped Earth-observation Reduced Resolution (ERR) Remote-Sensing Reflectance (RRS) - 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.

restrictednotspecifiedApr 2025View details →

Merged Catalog of Reflection Nebulae

Several catalogs of reflection nebulae have been merged to create a uniform catalog of 913 objects. It contains revised coordinates, cross-identifications of nebulae and stars, as well as identifications with IRAS point sources. The HEASARC has endeavored to render all identifications of the nebulae in the various catalogs according to the styles recommended by the Dictionary of Nomenclature of Celestial Objects. This table was created by the HEASARC in October 2012 based on <a href="https://cdsarc.cds.unistra.fr/ftp/cats/J/A+A/399/141">CDS Catalog J/A+A/399/141</a> file table1.dat. This is a service provided by NASA HEASARC .

ROSETTA-ORBITER 67P OSINAC 4 ESC4-MTP023 RDR-REFLECT V1.0

This CODMAC level 4 data set contains radiometric calibrated and geometric distortion corrected (resampled) image data in reflectance units (normalized and thus without unit), acquired by the OSIRIS Narrow Angle Camera on the Rosetta spacecraft during the COMET ESCORT 4 mission phase, covering the period from 2015-11-17T23:25:00.000 to 2015-12-15T23:24:59.000. 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 October 2018 PSA/PDS external peer review.