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JWST Transit Planning Meeting

March 11-13, 2014

California Institute of Technology

Pasadena, CA

Agenda ver. 1.1 (posted 13 Jan 2014; updated 11 Feb 2014)


Tuesday, March 11

JWST Transit Planning Meeting main page

All presentations are included in this zip file.

Note that most have been compressed from their original format to reduce file size and three presentations (Kempton, Sing, Ricker) that were in Keynote have been saved as smaller PDF files. Those files that were compressed have "compressed" as part of their file name. The original files can be viewed by clicking on the title in the agenda below.

8:00 am Coffee/Introductions C. Beichman, J. Lunine
8:15 am I. Goals of the Meeting
   A. Identify key exoplanet (transit) science opportunities for JWST
   B. Identify appropriate instrument modes for different science cases
   C. Ensure optimized observatory operation and data processing
   D. Identify ways to engage broad exoplanet community in JWST
   E. Discussion (⇒ Generate White Paper summarizing meeting results)
II. Key Science Opportunities
9:15 am    A. Spectroscopy of Giant Planets J. Fortney
9:35 am    B. Spectroscopy of Super Earths (keynote) (pdf) E. Kempton
9:55 am    C. Atmospheric Dynamics and Weather H. Knutson
10:15 am    D. Known Transit Validation, high precision characterization (TTV), searches for new planets in known systems D. Deming
10:35 am Discussion/Other Science
11:05 am Break
III. Transit Best Practices
11:25 am    A. HST best performance and best practices (keynote) (pdf) D. Sing
   A1. Analysis of Hot Jupiter Transit Spectroscopy with HST/WFC3 A. Mandell
11:45 am    B. Kepler best performance and best practices J. Christiansen
12:05 pm    C. Spitzer best performance and best practices S. Carey and I. Crossfield
12:25 pm    D. Lessons from Spitzer spectroscopy J. Bouwman
12:45 pm Discussion
1:00 pm Lunch and presentation

E. Frontiers of Precision Exoplanet Atmosphere Characterization with HST"

L. Kreidberg
2:00 pm IV. JWST Operations for Transit Observation M. Clampin and J. Stansberry
   A. Data rate and storage issues
   B. Image trailing
   C. Maximum uninterrupted duration
   D. Pointing control stability (control)
   E. Image quality, temporal variability, and SI tuning
   F. Pointing knowledge for post-processing
   G. Observation planning and Exposure Time Calculators
   H. Observing in an Event Driven Environment (or Oops! I missed your transit)
   I. What time (UT, JD, BJD) is it anyway and how well do I know it?
3:15 pm Discussion
3:35 pm Break

V. Detector Problems and Features
3:55 pm    A. HgCdTe/ASIC M. Rieke
4:25 pm    B. Silicon detectors M. Ressler
   B1. H2RG Readout for Efficient Coadds of Bright Images R. Smith
4:55 pm    C. Challenges in measurement repeatability M. Swain
5:25 pm Discussion
5:55 pm Adjourn

Wednesday, March 12

8:00 am Coffee
VI. Targets for JWST
8:30 am    A. Ground RV/transits J. Bean
8:50 am    B. Kepler and K2 S. Howell
9:10 am    C. TESS (keynote) (PDF) D. Latham and G. Ricker
9:30 am    D. M Stars as JWST targets C. Dressing
9:50 am    E. CHEOPS D. Ehrenreich (via Webex)
10:10 am Break
10:30 am    F. GAIA A. Sozzetti
10:50 am    H. Challenge of stellar variability P. McCullough
11:10 am    G. Precursor data needs (orbit info., transit timing, variability, etc.) (pdf) D. Ciardi
11:30 am Discussion
12:00 pm Lunch and presentation

"IRAC Phase Curves with Snapshots"

J. Krick
VII. Instrument modes for transits
1:10 pm    A. NIRSPEC

    1. Instrument overview

    2. Bright star limit

    3. Suggested modes for transit work

    4. Target acquisition and pointing requirements

    5. Simulations to date with estimated integration times

    6. Operational limitations

    7. Fill out performance template

P. Ferruit and S. Birkmann
1:55 pm    B. NIRISS

    1. Instrument overview

    2. Bright star limit

    3. Suggested modes for transit work

    4. Target acquisition and pointing requirements

    5. Simulations to date with estimated integration times

    6. Operational limitations

    7. Fill out performance template

R. Doyon and D. Lafreniere
2:40 pm Break
3:00 pm    C. NIRCam

    1. Instrument overview

    2. Bright star limit

    3. Suggested modes for transit work

    4. Target acquisition and pointing requirements

    5. Simulations to date with estimated integration times

    6. Operational limitations

    7. Fill out performance template

T. Greene
3:45 pm    D. MIRI

    1. Instrument overview

    2. Bright star limit

    3. Suggested modes for transit work

    4. Target acquisition and pointing requirements

    5. Simulations to date with estimated integration times

    6. Operational limitations

    7. Fill out performance template

T. Greene and P. Lagage
4:30 pm Discussion: Optimum Combinations of Instruments
    1. Science requirements for optimum multi-wavelength coverage
    2. Technical requirements for best data quality, e.g. parallel mode pointing reconstruction from NIRCamimaginge
5:30 pm Adjourn
7:00 pm Group Dinner

Thursday, March 13

8:00 am Coffee
VIII. Data Processing Challenges and Requirements
8:30 am    A. What is the smallest planetary atmosphere JWST will characterize? D. Deming and W. Traub
8:55 am    B. Laboratory testbeds G. Vasisht
9:20 am    C. Data simulations S. Birkmann, STScI Instrument Teams
9:45 am    D. Pipeline data processing challenges (transits and phase curves) P. Deroo
10:10 am Discussion
10:35 am Break
IX. Engage the Community
11:00 am    A. Status of Science Timeline for JWST J. Lee
11:30 am    B. What does the transit community need from "Commissioning" and "Early Release" science for observation planning Discussion, R. Doyon
12:30 pm Lunch (on own)
2:00 pm    C. Ideas for Community Grand Challenges (presentation combined with Birkmann's above) Discussion, J. Valenti
3:00 pm    D. Discussion and plans for White Paper M. Clampin/C. Beichman
4:00 pm Adjourn


JWST Transit Planning Meeting main page

last updated March 25, 2014