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Aquarius Celestial Sky Microwave Emission Map Ancillary Dataset V1.0

Metadata Updated: December 6, 2023

This 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.

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

Downloads & Resources


Metadata Created Date April 27, 2023
Metadata Updated Date December 6, 2023

Metadata Source

Harvested from NASA Data.json

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Additional Metadata

Resource Type Dataset
Metadata Created Date April 27, 2023
Metadata Updated Date December 6, 2023
Identifier C2617176761-POCLOUD
Data First Published 2018-06-12
Language en-US
Data Last Modified 2018-06-12
Category AQUARIUS SAC-D, geospatial
Public Access Level public
Bureau Code 026:00
Metadata Context
Metadata Catalog ID
Schema Version
Catalog Describedby
Citation Emmanuel Dinnat. 2018-07-04. Aquarius Celestial Sky Products. Version 1. Aquarius Celestial Sky Products. Goddard Space Flight Center, 8800 Greenbelt Rd.; Greeenbelt, Md., 20771. Archived by National Aeronautics and Space Administration, U.S. Government, NASA Goddard Space Flight Center (GSFC). Emmanuel Dinnat, NASA Goddard Space Flight Center (GSFC), 2018-07-04, Aquarius Celestial Sky Microwave Emission Map Ancillary Dataset V1.0,
Creator Emmanuel Dinnat
Graphic Preview Description Thumbnail
Graphic Preview File
Harvest Object Id ea32a8b1-fede-403a-b1c4-94e61c4e6970
Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
Harvest Source Title NASA Data.json
Homepage URL
Metadata Type geospatial
Old Spatial -180.0 -90.0 180.0 90.0
Program Code 026:001
Release Place Goddard Space Flight Center, 8800 Greenbelt Rd.; Greeenbelt, Md., 20771
Series Name Aquarius Celestial Sky Products
Source Datajson Identifier True
Source Hash ab1e921226dd5e1adb1620e6f193232c916bdb7b2ff524ba2a45d82843dde8fa
Source Schema Version 1.1
Temporal 2011-09-01T00:00:00Z/2015-06-07T23:59:59.999Z

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