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FORCAST Telescope Commissioning and Review Overview - September 2009

This document outlines the commissioning procedures, observing modes, and trimester reviews for the FORCAST telescope at Cornell University as of September 29, 2009. It includes detailed information on operational tests such as EMI/EMC, MCCS communications, alignment processes, and telescope functionality assessments. The text also discusses the optimum instrument parameters and techniques for observing extended sources, highlighting the challenges associated with various observational methods and their effectiveness.

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FORCAST Telescope Commissioning and Review Overview - September 2009

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  1. FORCASTCommissioning September 29, 2009 Cornell University Adams/Herter

  2. FORCAST Telescope Configurations FORCAST Trimester Review

  3. FORCAST Observing Modes FORCAST Trimester Review

  4. FORCAST Line Ops Tests FORCAST Trimester Review

  5. FORCAST Commissioning Procedures • EMI/EMC Test • MCCS Communications Functional Test • INF Pressure Test • Alignment and Setup in the Air • Pupil alignment check in the air • Frame rates (depend on background conditions) • Telescope functionality (focus, chop and nod) • Chop and nod settle times • Pointing Stability • System Characterization • Optimum instrument parameters per instrument filter mode (bias, well depth) • Optimum chop frequency • Telescope emissivity • Sensitivity (standard stars) FORCAST Trimester Review

  6. Observing Techniques for Extended Sources (to be Tested During Line Ops) • Standard chop and nod (inefficient) • Quick step-and-stare (less effective sky subtraction) • Scanning (requires fast reads and many scans) FORCAST Trimester Review

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