Image Service: Planck 030 GHz Survey
Description
Planck is ESA's third generation space based cosmic microwave background experiment, operating at nine frequencies between 30 and 857 GHz and was launched May 2009. Planck provides all-sky survey data at all nine frequencies with higher resolution at the 6 higher frequencies. It provides substantially higher resolution and sensitivity than WMAP. Planck orbits in the L2 Lagrange point. These data come from Release 1 of the Planck mission. <p> The original data are stored in HEALPix pixels. SkyView treats HEALPix as a standard projection but assumes that the HEALPix data is in a projection plane with a rotation of -45 degrees. The rotation transforms the HEALPix pixels from diamonds to squares so that the boundaries of the pixels are treated properly. The special HealPixImage class is used so that SkyView can use the HEALPix FITS files directly. The HealPixImage simulates a rectangular image but translates the pixels from that image to the nested HEALPix structure that is used by the HEALPix data. Users of the SkyView Jar will be able to access this survey through the web but performance may be poor since the FITS files are 150 to 600 MB in size and must be completely read in. SkyView will not automatically cache these files on the user machine as is done for non-HEALPix surveys. </p> Data from the frequencies of 100 GHz or higher are stored in a HEALPix file with a resolution of approximately 1.7' while lower frequencies are stored with half that resolution, approximately 3.4'.
This section describes who is responsible for this resource
Publisher: NASA/GSFC HEASARCivo://nasa.heasarc/ASD[Pub. ID]
Contact Information:
This section provides some status information: the resource version, availability, and relevant dates.
This resource was registered on: 2018 Dec 03 00:00:00ZThis resource description was last updated on: 2018 Dec 03 00:00:00Z
This section describes what the resource is, what it contains, and how it might be relevant.
Related Resources:
This section describes the data's coverage over the sky, frequency, and time.
Reference Coordinate System: UTC-ICRS-TOPOXXivo://STClib/CoordSys#UTC-ICRS-TOPO[Res. ID]
Sky Coverage: Regions covered:
Wavebands covered:
This is a standard IVOA service used to search for images from this resource that overlap with a specified region of the sky.
This is service that does not comply with any IVOA standard but instead provides access to special capabilities specific to this resource.
Developed with the support of the National Science Foundation under Cooperative Agreement AST0122449 with the Johns Hopkins University The NAVO project is a member of the International Virtual Observatory Alliance
This NAVO Application is hosted by the Space Telescope Science Institute