Difference between revisions of "Mission products"

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__NOTOC__
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{{DISPLAYTITLE:Planck 2015 Mission products}}
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The products of the Planck mission that are made public at this time and described in this document consist of:
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* '''signal and pointing timelines''', accompanied by the relevant flags, which can be used to build maps in addition to those supplied here;
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* different types of '''sky maps''', i.e., maps of the signal received from the sky, accompanied by;
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* various '''catalogues''' of point sources, one per frequency band, and of the SZ clusters (of which there are several compiled with different extraction methods);
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* a set of '''astrophysical component maps''', which attempt to separate the different astrophysical components, namely the CMB and several foreground components;
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* a '''CMB power spectrum''', the best the DPCs could produce at this time.
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and more
  
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To support the interpretation of these data, these products are accompanied by:
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The
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* instrument-level data (beam properties, noise levels, bandpass profiles, and more) compiled into the '''Reduced Instrument Model''', or '''RIMO''', of which there is one per instrument.
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* the '''effective beams'''
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The Mission Data Products described in this chapter are:
 
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* different flavors of '''sky maps''', i.e., maps of the full signal received from the sky, processed via the DPC pipelines; these represent the best view of the sky at the Planck frequencies that the DPCs could produce at this time;
 
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* '''catalogues''' of point sources, one per frequency band, and of the SZ clusters (of which there are several compiled with different extraction methods);
 
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* astrophysical '''component maps''' (with more that one map for some components), which attempt to separate the different astrophysical components, namely the CMB (various examples obtained with different extraction methods), and several foregrounds;
 
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* a '''Dust opacity map and model''' derived from the dust component but using also external information;
 
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* '''sky power spectra''' for selected combination of detectors useful for Likelihood studies, and obtained with the DPC's best estimate of the beam window function;
 
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* a '''CMB power spectrum''';
 
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* A set of instrument-level data compiled into the '''RIMO''' (Reduced Instrument Model), such as beam properties, noise levels, bandpass profiles, and more.  There is one RIMO for each instrument.
 
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* the '''effective beams''' … <span style="color:red">Should this be here or in ancillary data?</span>
 
  
 
Two software packages are also included as Mission Products:
 
Two software packages are also included as Mission Products:
  
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* the Likelihood code package, which is itself split into a software package and a data package,
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* the '''Likelihood code package''', which is itself split into a software package and a data package,
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* the Unit Conversion and Color Correction (UcCC) package <span style="color:red">Should this be here or in the software utilities section?</span>, which is used together with the bandpass profiles in the RIMO.
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* the '''Unit Conversion and Color Correction (UcCC)''' package, which is used together with the bandpass profiles in the RIMO.
  
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There are no low-level science products in this first release of Planck data, in particular no timeline data (raw or processed signal, pointing), and in general no data at the single detector level.  Other products of scientific analyses that were built with extensive use of external data are given in [[Additional Science products|Additional products]], and mission and payload information are in later chapters.
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The data products are packaged into FITS files that contain a main product (e.g., a signal map) and one or more other products to characterize it (e.g., a variance map, a hit-count map, a beam window function).  Depending on the details of the products, the data are written into a single ''BINTABLE'' or a few extensions, or an ''IMAGE'' extension. The RIMO is also packaged into a FITS file, but given the nature of its different elements it was necessary to use several hundred ''BINTABLE'' extensions.   
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The data products are packaged into FITS files that contain a main product (e.g., a signal map) and one or more other products to characterize it (e.g., an error map and a hit-count map).  Depending on the details of the products, the data are written into a single ''BINTABLE'' or a few extensions. The RIMO is also packaged into a FITS file, but given the nature of its different elements it was necessary to use several hundred ''BINTABLE'' extensions.   
 
  
 
The software is delivered as a tarball of code, and if necessary a second tarball of associated data is also delivered.  The details depend on the code and are described elsewhere in this document.
 
The software is delivered as a tarball of code, and if necessary a second tarball of associated data is also delivered.  The details depend on the code and are described elsewhere in this document.
  
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This chapter is divided by type of product. Each section contain a brief description of how each type of product is obtained, while the details of the processing are given in the [[The HFI DPC| HFI Data Processing]] and [[The LFI DPC|LFI Data Processing]]  chapters, and any known problems with the product.  The list of product files is then given, and sample FITS headers are given and explained.
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This chapter is divided by type of product. Each section contains a brief description of how each type of product is obtained, while the details of the processing are given in the [[The HFI DPC| HFI Data Processing]] and [[The LFI DPC|LFI Data Processing]] chapters. Each section also lists any known problems with the product.  The structure of the FITS files are given and explained, as are the main header keywords.
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A very brief description of how to start using the PLA can be found in the [[Appendix#The PLA quick start guide | PLA appendix]]. The PLA software provides a more extensive user guide.
  
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[[Category:Mission science products|000]]
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[[Category:Mission products|000]]

Latest revision as of 10:45, 5 February 2015

The products of the Planck mission that are made public at this time and described in this document consist of:

  • signal and pointing timelines, accompanied by the relevant flags, which can be used to build maps in addition to those supplied here;
  • different types of sky maps, i.e., maps of the signal received from the sky, accompanied by;
  • various catalogues of point sources, one per frequency band, and of the SZ clusters (of which there are several compiled with different extraction methods);
  • a set of astrophysical component maps, which attempt to separate the different astrophysical components, namely the CMB and several foreground components;
  • a CMB power spectrum, the best the DPCs could produce at this time.

and more

To support the interpretation of these data, these products are accompanied by:

  • instrument-level data (beam properties, noise levels, bandpass profiles, and more) compiled into the Reduced Instrument Model, or RIMO, of which there is one per instrument.
  • the effective beams

Two software packages are also included as Mission Products:

  • the Likelihood code package, which is itself split into a software package and a data package,
  • the Unit Conversion and Color Correction (UcCC) package, which is used together with the bandpass profiles in the RIMO.

The data products are packaged into FITS files that contain a main product (e.g., a signal map) and one or more other products to characterize it (e.g., a variance map, a hit-count map, a beam window function). Depending on the details of the products, the data are written into a single BINTABLE or a few extensions, or an IMAGE extension. The RIMO is also packaged into a FITS file, but given the nature of its different elements it was necessary to use several hundred BINTABLE extensions.

The software is delivered as a tarball of code, and if necessary a second tarball of associated data is also delivered. The details depend on the code and are described elsewhere in this document.

This chapter is divided by type of product. Each section contains a brief description of how each type of product is obtained, while the details of the processing are given in the HFI Data Processing and LFI Data Processing chapters. Each section also lists any known problems with the product. The structure of the FITS files are given and explained, as are the main header keywords.

A very brief description of how to start using the PLA can be found in the PLA appendix. The PLA software provides a more extensive user guide.

Sunyaev-Zel'dovich

Cosmic Microwave background

reduced IMO

Flexible Image Transfer Specification

Planck Legacy Archive

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