Forcast commissioning
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FORCAST Commissioning. September 29, 2009 Cornell University. Adams/Herter. FORCAST Telescope Configurations. FORCAST Observing Modes. FORCAST Line Ops Tests. FORCAST Commissioning Procedures. EMI/EMC Test MCCS Communications Functional Test INF Pressure Test

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FORCAST Commissioning

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FORCASTCommissioning

September 29, 2009

Cornell University

Adams/Herter


FORCAST Telescope Configurations

FORCAST Trimester Review


FORCAST Observing Modes

FORCAST Trimester Review


FORCAST Line Ops Tests

FORCAST Trimester Review


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


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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