US Planck Data Analysis Review 1 Peter MeinholdUS Planck Data Analysis Review 9–10 May 2006 LFI Integration and Test Support

2 US Planck Data Analysis Review 9–10 May 2006Peter Meinhold 2 LFI Radiometer Hardware Flow

3 US Planck Data Analysis Review 9–10 May 2006Peter Meinhold 3 US team Rodrigo Leonardi-UCSB –Summary(final) analyses of 30, 44 and 70 GHz RCA tests, QM and FM –Development of dedicated IDL tools for instrument characterization –Testing of ‘LIFE’ software and contributions to LIFE modules –Testing of KST with RCA and RAA data. PRM-UCSB –Chairing 70 GHz ‘support tiger team’- technical support team –Critical analyses of all phases of test data –Test set and radiometer troubleshooting (remote and on site in Helsinki, JBO and Milan) –Primary contact with European instrument team. Todd Gaier-JPL –RF devices, export issues, NGST contacts –RCA troubleshooting Michael Seiffert-JPL –Detailed RCA modeling –Test analyses –LFI System analyses and debugging/systematic effects

4 US Planck Data Analysis Review 9–10 May 2006Peter Meinhold 4 Achievements past year The US role has been to provide experience and scientific input to the nuts and bolts of the Radiometer test campaigns. Our contributions focus on –Making sure test campaigns cover critical measurements:developing test procedures. –Developing analysis tools and metrics to determine radiometer performance –Cross checking test data sets independently –Diagnosing and helping solve problems with radiometers and test systems: Thermal, Electrical, RF and software. –Assisting onsite at JBO, Ylinen electronics and Laben in RCA and RAA test campaigns Built a simulator using test data for developing real-time analysis tools and daily reports, demonstrated KST capabilities for some LFI data analysis, participated in testing and development of LIFE analysis tools Developing detailed summary of final test data for LFI Instrument Model- input to Level S and pipeline We identified and helped solve a number of major problems at QM and FM, RCA and RAA levels, some samples: –Noise resolution issues with 30/44 GHz QM and particularly with the 70 GHz FM RCA test campaigns –Debugging of initial LFI RAA data streams, filtering errors and EMC. –Investigation into ‘spikes’ in 70 GHz RCA RM and RAA QM data sets. –Oscillation problem 44 GHz Back End Modules. Publications on LFI I+T campaigns (Bersanelli et al, Menella et al, Tomasi et al) include US team.

5 US Planck Data Analysis Review 9–10 May 2006Peter Meinhold 5 European connections Major advances in the past year in interfaces within LFI –Multiple visits to Laben, Helsinki, JBO –Use of common tools (LIFE) across LFI to analyze common data sets –Readily available data from all test campaigns via FTP –Weekly telecons, web logs and active communications Large increase in sophistication of the whole LFI instrument team –Multiple analyses of current data sets occur (typically Bologna, UCSB, Helsinki) –Distribution of instrument experience around the team (Torsti Poutanen, Maura Sandri, Luca Terenzi, Francesco Cuttaia, Paola Battaglia, Mikko Laaninen...many more.)

6 US Planck Data Analysis Review 9–10 May 2006Peter Meinhold 6 Plans for Next Year Support LFI FM RAA campaign about to start in Laben. –PRM to spend 1-2 weeks, RL hopefully much more –Near real time remote analysis at both JPL and UCSB, primarily noise performance estimation and troubleshooting. –Development of tools for realtime reporting, to be extended for flight operations. We will support the Alcatel test phase as well in similar fashion. Analysis of ground test database –Some anomalies still being investigated. –Critical analysis of bandpasses particularly 70 GHz) and calibration –Development of a complete integrated picture of the instrument, for the instrument model and pipeline analysis. –Work with Italian team to develop CPV phase plans and inflight tuning methods Parallel effort to integrate instrument experience in LFI pipeline development –Systematic errors, Calibration issues, Polarization calibration, offsets etc –Instrument model –Reporting and simulation Significant effort to maximize overlaps with US HFI instrument team