Monday 20^th August

STEP DAY 1 : Shear measurement methods

Welcome and Introduction: 9.00 - 10.00

Model fitting methods: 10.00 - 12.00

Discussion: 12.00 - 1.00. Is model fitting the way forward?
Lead by Sarah Bridle

• The pros and cons of model fitting
• PSF and galaxy models
• Computational speed
• Bayesian vs frequentist
• Similarities and differences between the presented methods

Lunch: 1.00 - 2.00

Shapelet methods : 2.00 - 3.45

Coffee Break: 3.45 - 4.15

Discussion: 4.15 - 5.15. Are shapelets the way forward?
Lead by Richard Massey

• The pros and cons of shapelets
• Similarities and differences between the presented methods
• When to stop fitting shapelet coefficients

Evening meal in "Old" town Pasadena

Tuesday 21^th August

STEP DAY 2 : SpaceSTEP 

STEP3 and beyond: 9.30 - 11.30

Discussion: 11.30 - 12.30. STEP3
Lead by Gary Bernstein

• What does the DE community want to know from the STEP project?
• Can we answer those questions by supplementing STEP3 with rotated galaxy images?
• Do these questions need to be answered with all methods?

Lunch: 12.30 - 1.30

Discussion: 1.30 - 2.30. STEP3 continued
Lead by Jason Rhodes

• Agree a course of action
• Do we want new simulations?
• Who is participating?
• Are there any more ground/space data sets for a comparison study?

Coffee Break: 2.30 - 3.00

ACS Science: 3.00 - 5.00

A comparison of weak lensing measurements on ground and space based COSMOS data, Mansi Kasliwal. (30 mins)

A comparison of weak lensing measurements on ground and space based A901 data, Marco Hetterscheidt. (30 mins)

ACS Discussion, lead by Tim Schrabback.

Wednesday 22^th August

STEP DAY 3: Future STEPs

STEP 4 Konrad Kuijken 9.30 -10.00

Discussion: 10.30 - 12.30. The future of STEP
Lead by Sarah Bridle and Catherine Heymans

• summary, comparing and contrasting the different methods under development
• are we any closer to meeting the needs of the next generation of surveys?
• the pros and cons of working in the large STEP collaboration
• what steps need to be taken to meet SNAP/LSST requirements?
• developing STEP4 - who is interested?
• ideas for future projects

Lunch: 12.30 - 1.30

The afternoon free is free with an optional first-come-first-serve JPL tour or a trip to Griffith Park and Hollywood?

Thursday 23^rd August

WL From Space DAY 1: Future projects and PSFs

Setting the Stage: Future and current ground-based surveys: 9:30-10:30

Introduction to future space-based surveys: 10:30-12:30

Lunch: 12.30 - 1.30

Cosmological Parameters: 1.30 -2:45

Coffee Break: 2:45 - 3.15

Pixels and PSFs: 3.15 - 5.15

Evening trip to see Beckham and the LA Galaxies (photos courtesy of Tim Schrabback)

Friday 24^th August

WL From Space DAY 2: Detectors and Science Topics

Detectors: 9.30 - 12.15

Lunch: 12.15 - 1.15

WL From Space: Special Lensing Topics: 1.15 - 3.30

Concluding discussion

STEP Workshop at JPL organised by:
Jason Rhodes: jrhodes[at]mail.jpl.nasa.gov
Catherine Heymans: heymans[at]physics.ubc.ca