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ATST Science Requirements

Outline/Scope. State Requirements focus on top levelNo attempt to give detailed explanation or justification see SRD!!Detailed/Derived Requirements will be stated in individual presentations (SE, Polarimetry, AO, instruments ...). Top Level Requirements. ATST shall provide:High spatial, te

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ATST Science Requirements

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    1. ATST Science Requirements ScienceTeam

    2. Outline/Scope State Requirements – focus on top level No attempt to give detailed explanation or justification – see SRD!! Detailed/Derived Requirements will be stated in individual presentations (SE, Polarimetry, AO, instruments ...)

    3. Top Level Requirements ATST shall provide: High spatial, temporal and spectral resolution observations with enough photons for sensitive vector magnetic field measurement at a range of heights. High spatial, temporal and spectral resolution spectroscopy at a range of heights. High spatial and temporal resolution imaging.

    4. A Flexible System High spatial, temporal and spectral resolution: Optimized differently for different science programs! ? ATST as a telescope/instrument(s) system shall provide sufficient flexibility to enable a large number of optimized science programs Multi-instrument observing programs “Adjustable” spatial scales for instruments Joint observations with space experiments (Solar-B , SDO, Solar-Orbiter, …)

    5. High Spatial Resolution As its highest priority science driver ATST shall provide high resolution and high sensitivity observations of the highly dynamic solar magnetic fields throughout the solar atmosphere. ATST shall have a minimum aperture of 4m. A minimum aperture of 4 m is needed to resolve features at 0.”03 in the visible and at 0.1 arcsec in the near infrared (1.6 micron). Using adaptive optics the ATST shall provide diffraction limited observations of high Strehl within the isoplanatic patch for visible and infrared wavelengths.

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