tentative agenda

2016 Euclid Photometric Calibration Workshop Programme

Latest update: 14 Sep 2016

 

Tuesday 20 September,  09:30 – 17:30

    09:30 - 09:45 Welcome, workshop objectives  - Rene Laureijs / Stefanie Wachter

 

Session 1: Euclid capabilities and spectro-photometry calibration

Core science experiment. Euclid spectro-photometric requirements, their budgeting, justification and calibration implementation plan.

 

Chair: Rene Laureijs

    09:45 – 10:45 Euclid Overview

• Euclid: Core Science Experiment, Capabilities, including deep survey description and plans - Yannick Mellier 25+5’

• Review of SGS organisation, pipelines through processing functions, external data acquisition - Marc Sauvage 25+5’

   10:45 - 11:15 Galaxy Clustering spectro-photometry requirements

• GC requirements flow down, budgeting - Will Percival  25+5’

 

11:15 - 11:45 Coffee/tea break

 

   11:45 - 12:45 GC continued

• Planned spectro-photometry calibration programme - Anne Ealet 25+5’

• Relative spectro-photometry Uebercal - Dida Markovic 25+5’

 

12:45 - 13:15 Open Discussion

 

13:15 - 13:30 walk to ESAC canteen

13:30 - 14:15 Lunch  at ESAC canteen

 

Session 2: Photometric systems and absolute photometry

Photometric calibration approaches/experience and fiducial standards from other space missions

 

Chair: Stefanie Wachter

      14:30 - 15:30

• HST/JWST Photometric Calibration - Susana Deustua 25+5’

• Final absolute calibration of Spitzer/IRAC and application to Euclid - Sean Carey 25+5’

  

15:30 - 16:00 coffee/tea break

 

       16:00 - 17:30

• Ultracool Dwarfs as Potential Calibrators for Euclid - Eduard Martin 25+5’

• SN survey calibration (MegaCam/SNLS) - Marc Betoule 25+5’

• Discussion Panel / Wrap-up of Day 1: Need for absolute photometry for Euclid 25+5’

 

 

Wednesday 21 September, 09:00 – 17:45

Session 3: Photometric calibration of imaging datasets

Euclid WL photometry and cross-calibration (OU-VIS, OU-NIR, OU-EXT, OU-MER) per pixel calibration, source extraction

 

Chair: Ruyman Azzolllini

     09:00 - 11:00

• Gaia Photometric Calibration - Carme Jordi 25+5’

• Short overview OU-VIS - Patrick Tisserand 25+5’

• Short overview OU-NIR - Peter Capak 25+5’

• Short overview OU-EXT - Joe Mohr 25+5’

 

11:00 - 11:30 Coffee/tea break

 

     11:30 - 12:45

• Short overview OU-MER - Alexandre Boucaud 25+5’

• Euclid wide ground-based surveys: coverage, metrics and depths - Jean-Charles Cuillandre 20+5’

• KiDS Photometric Calibration Lessons and Implications for meeting Euclid Requirements - Gert Sikkema 20+5’

 

12:45 - 13:15 Open Discussion

 

13:30 - 14:15 Lunch at ESAC canteen

 

Session 4: Spectro Photometry

Euclid GC spectro-photometry, Euclid GC related processing

 

Chair: Susana Deustua

     14:30 - 15:30

• Short overview OU-SIR - Marco Scodeggio 25+5’

• Short overview OU-SPE - Benoit Epinat 25+5’

 

15:30 - 16:00 Coffee/tea break

 

     16:00 - 17:45

• Lessons Learned from HST Grism Spectroscopy - Harry Teplitz 20+5’ (remotely)

• NIS Grism Wavelength calibration - William Gillard 20+5’

• Model based approach to JWST NIRspec Calibration - Giovanna Giardino 20+5’

• Open Discussion / Wrap-up of Day 2 - 25+5’

 

Evening programme TBC   

Conference dinner in the "La Giralda" restaurant in downtown Madrid at 20:00h

 

Thursday 22 September, 09:00 – 17:30

Session 5: Photo-z Estimation and Calibration

WL requirements, OU-PHZ, redshift determination and calibration

 

Chair: Joe Mohr

     09:00 - 10:45

• Weak Lensing Photometric requirements (flow down, budgeting, planned calibration programme) - Tom Kitching 25+5’

• OU-PHZ: general photo-z overview of the requirements, algorithms and current performance - Stephane Paltani 40+5’

• SED dependent Galactic extinction Prescription for Euclid and Future Cosmological Surveys - Audrey Galametz 25+5’

 

10:45 - 11:15 Coffee/tea break

 

     11:15 - 12:45

• Clustering based redshift for Euclid - Vivien Scottez 25+5’

• Spectroscopic redshift calibration of photo-zs - Peter Capak 25+5’

• Panel Discussion: How to obtain throughput curves for VIS, NIR, as well as ground based surveys.  What about variations in throughput curves as a function of position within the instruments and changes over time?  Is there a plan for handling this? - 25+5’

 

Session 6 : Methods, improvements, enhancements

May include alternative algorithms, possibilities to improve beyond the “as required” performances, relative photometric accuracy and reproducibility, Legacy science optimisation

 

Chair: Raymond Carlberg

      12:45 - 13:15  

• GC/WL Dithering strategy considerations for Euclid -  Anne Ealet 20+5’

 

13:15/30  - 14:15 Lunch at ESAC canteen

 

Session 6 continued

     14:30 - 15:45

• Uebercal photometric calibration of previous surveys (SDSS, PS1) - Eddie Schlafly 20+5’ (remotely)

• Calibration of EXT-DES Data - Mohammad Mirkazemi 20+5’

• The Dark Energy Camera Legacy Survey (DECaLS): image reduction using The Tractor - Dustin Lang 20+5’

 

15:45 - 16:15 Coffee/tea break

 

    16:15 - 17:30

• Framework for Joint Photometric Validation of External Imaging Surveys - Gijs Verdoes 20+5’

• Legacy Science Requirements - Chris Conselice 20+5’

• Surface brightness calibration - Rick Arendt / Alexander Kashlinsky 20+5' (remotely)

 

Friday 23 September, 09:00 – 17:00

Session 7: Euclid technicalities

Technicalities and conventions applicable to SGS and in the interest of legacy archive users

 

Chair: Marc Sauvage

     09:00 - 11:00

• Euclid Archive - Bruno Altieri 20+5’

• MDB, Euclid conventions - Roland Vavrek 20+5’

• QLA - Luca Conversi 20+5’

• Panel Discussion (Interfaces, apertures, conventions) 25+5’

 

Closure of plenary part of workshop

 

11:00 - 11:30 Coffee/tea break

 

Morning Splinter Sessions - to be announced

     OU-EXT - discussion of coordination on CFIS data

     CALWG

 

13:15 - 14:15 Lunch at ESAC canteen

 

Afternoon Splinter Sessions - to be announced