Aquarius Celestial Sky Microwave Emission Map Ancillary Dataset V1.0
DOI10.5067/AQR00-SKY01
Short NameAQUARIUS_ANCILLARY_CELESTIALSKY_V1
DescriptionThis datasets contains three maps of L-band (wavelength = 21 cm) brightness temperature of the celestial sky ("Galaxy") used in the processing of the NASA Aquarius instrument data. The maps report Sky brightness temperatures in Kelvin gridded on the Earth Centered Inertial (ECI) reference frame epoch J2000. They are sampled over 721 Declinations between -90 degrees and +90 degrees and 1441 Right Ascensions between 0 degrees and 360 degrees, all evenly spaced at 0.25 degrees intervals. The brightness temperatures are assumed temporally invariant and polarization has been neglected. They include microwave continuum and atomic hydrogen line (HI) emissions. The maps differ only in how the strong radio source Cassiopeia A has been included into the whole sky background surveys: 1/ TB_no_Cas_A does not include Cassiopeia A and reports only the whole Sky surveys. 2/ TB_Cas_A_1cell spread Cas A total flux homogeneously over 1 map grid cell (i.e. 9.8572E-6 sr). 3/ TB_Cas_A_beam spreads Cas A over surrounding grid cells using a convolution by a Gaussian beam with HPBW of 35 arcmin (equivalent to the instrument used for the Sky surveys). Cassiopeia A is a supernova remnant (SNR) in the constellation Cassiopeia and the brightest extra-solar radio source in the sky at frequencies above 1.
Version1
Dataset TypeCOMPLETE
MeasurementATMOSPHERE > ATMOSPHERIC RADIATION > INCOMING SOLAR RADIATION
Processing Level3
CoverageRegion: GLOBAL
North Bounding Coordinate: 90 degrees
South Bounding Coordinate: -90 degrees
West Bounding Coordinate: -180 degrees
East Bounding Coordinate: 180 degrees
Time Span: 2011-Sep-01 to 2015-Jun-07
Granule Time Span: 2011-Sep-01 to 2015-Jun-07
ResolutionSpatial Resolution: 0.25 degrees (Latitude) x 0.25 degrees (Longitude)
Temporal Resolution: 4 Year
ProjectionProjection Type: Gridded
Platform/Sensor
Aquarius_SAC-D
Platform
Name: Aquarius SAC-D (Aquarius_SAC-D)
Orbit Period: 98.0 minutes
Inclination Angle: 98.0 degrees
/
AQUARIUS_RADIOMETER
SENSOR
Name: Aquarius Radiometer (AQUARIUS_RADIOMETER)
Swath Width: 390.0 kilometers
Description: Spacecraft angular distance from orbital plane relative to the Equator.

ProjectAQUARIUS SAC-D (AQUARIUS SAC-D)
Data ProviderPublisher: NASA Goddard Space Flight Center (GSFC)
Creator: Emmanuel Dinnat
Release Place: Goddard Space Flight Center, 8800 Greenbelt Rd.; Greeenbelt, Md., 20771
Release Date: 2018-Jul-04
Resource: http://podaac.jpl.nasa.gov/salinity/data.html

Keyword(s)Aquarius, polar, sun-synchronous, Galaxy, Celestial Sky map, Microwave, brightness temperature, L-band, 21 cm, CONAE, argentina
Questions related to this dataset? Contact podaac@podaac.jpl.nasa.gov
Direct Access
PO.DAAC DRIVEhttps://podaac-tools.jpl.nasa.gov/drive/files/allData/aquarius/L3/mapped/galaxy
PO.DAAC Drive
OPENDAP DATAhttps://podaac-opendap.jpl.nasa.gov/opendap/allData/aquarius/L3/mapped/galaxy/
The OPeNDAP base directory location for the collection.
Format (Compression)HDF5
Read Software
GENERAL DOCUMENTATION
USER'S GUIDE
DATA CITATION POLICY
Citation Emmanuel Dinnat. 2018. Aquarius Celestial Sky Products. Ver. 1. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at https://doi.org/10.5067/AQR00-SKY01

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For more information see Data Citations and Acknowledgments.

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