Wants/Needs/Strategies for Observation Design Pipeline Processing Data Products User Tools Jessica Krick IRAC Instrument Support Team Spitzer Science Center

Observation Design Flexibility vs. Inflexibility – Flexibility to design modes/templates you might not think of before launch – But….not infinite flexibility because then calibration time becomes a burden

Pipeline Processing Functions that a user cannot do themselves (calibration data required, technical knowledge required) Universal for all users and all science Provide all calibration and data products

Data Products Calibrated data is the goal Telemetry is in practice not useful for users – Too coarsely sampled on time and sensitivity – Is useful for optimizing operations Want best possible data characterizing pointing performance (preferably not from science data) jitter/drift; repeatable pointing; detector responsivity; photometric stability; persistent images; charge trapping Biggest impact will come from doing this early in the mission.

User Tools Analysis specific to exoplanets Does the Science Center provide analysis tools (light curves/spectra)? – Large investment of resources, will users do this themselves anyway? – Potentially small number of targets Spitzer (IRAC) has designed a website specific to exoplanet science -

User Tools Data Challenges – Best practices for data reduction – Repeatability and reliability Code Repository Close the feedback loop – encourage users to influence process Be flexible to make changes

Extra Slides

Photometric Stability as a Function of Time

Additional Questions It might be nice to have a repository of which teams have simulated data for which the public could start writing reduction pipelines. – Eventually need some sort of estimate of the uncertainty in these simulations How to reconcile proprietary data with getting the best science? – Especuially with timescales mentioned this morning Observation planning – how to figure out which mode on which instrument I want to use ? Are there tools that could be built to help “generic” observers? Theorists? – Maybe it would help to hear how the GTO teams made their observations. Data products: Is it possible/desirable to have the history of the detector (aka someone else’s proprietary data) to track the persistent images?