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Explanatory Supplement

By the Planck Collaboration

The Explanatory Supplement is a reference text accompanying the public data delivered from the operations of the European Space Agency’s Planck satellite during its mission.

• Q&A from PR1

1. Introduction
   1. The Planck mission
   2. The spacecraft
   3. Ground segment and operations
   4. Survey scanning and performance
   5. PLA quick start guide
2. The Instruments
   1. HFI design, qualification, and performance
      1. Cryogenics
      2. Cold optics
      3. Detection chain
      4. Operations
      5. Performance summary
      6. Annexes
   2. LFI design, qualification, and performance
      1. Instrument description
      2. Ground tests
      3. In-flight calibration
      4. Performance summary
      5. Systematic effects
      6. Sorption cooler
      7. Annexes
3. Data processing
   1. HFI Data Processing
      1. Pre-processing
      2. TOI processing
      3. ADC correction
      4. Beams
      5. Mapmaking
      6. Spectral response
      7. Internal overall validation
      8. Power spectra
      9. Summary of HFI data characteristics
   2. LFI data processing
      1. Pre-processing
      2. TOI processing
      3. Beams
      4. Galactic stray light removal
      5. Mapmaking
      6. Systematic effects uncertainties
      7. Internal overall validation
      8. Power spectra
      9. Summary of LFI data characteristics
   3. HFI/LFI joint data processing
      1. Detector pointing
      2. Compact Source Catalogues (Ashdown/Nuevo/Caniego)
      3. Astrophysical component separation (Ashdown/Baccigalupi)
      4. CMB Power spectra and Planck likelihood code Not in PR1 (Bouchet/Natoli)
4. Mission products
   1. Time-ordered data
   2. Sky temperature and polarization maps
   3. Instrument model
   4. Effective beams
   5. Catalogues: PCCS • SZ • ERCSC
   6. Sky temperature power spectra
   7. CMB and astrophysical component maps
   8. CMB spectrum and likelihood code
   9. Cosmological parameters
   10. Additional maps: Lensing map • IRAM maps of the Crab
   11. Scientific data used to generate Planck products
   12. Simulation data
   13. Dates of observations
5. Software utilities
   1. Unit conversion and Colour correction
6. Operational data
   1. Telescope Not in PR1 (Tauber/Dupac)
   2. Thermal and cooler system Not in PR1 (Mendes/Leonardi)
   3. Survey history data
   4. Satellite history data Not in PR1 (Mendes/Dupac)
   5. Planck operational state history
   6. Fibre-optic gyro Not in PR1 (Leonardi/Mendes)
   7. Space radiation environment monitor (Mendes)
7. Appendix
   1. Glossary
   2. List of acronyms