CAA 12th Cross-cal meeting Toulouse Oct STAFF status report N. Cornilleau-Wehrlin,P. Robert, V. Bouzid, and STAFF team

CAA 12th Cross-cal meeting Toulouse Oct Content Management changes Status of action items STAFF - EFW issues : STAFF SA data quality and waveform timing Status of data set delivery Data delivery plan Remain to be done Conclusion

CAA 12th Cross-cal meeting Toulouse Oct Management changes Pi : Patrick Canu, starting 1st of December CAA engineer : Corinne Burlaud has left on October 1st; a new STAFF CAA engineer has to be hired; –probably not before January –In the mean time : the STAFF team, on the best effort basis

CAA 12th Cross-cal meeting Toulouse Oct Status of action items R2a. STAFF –The board requests that the production of search coil CWF and SA polarization and propagation data sets is undertaken as rapidly as possible to ensure delivery of all data by May 2010: CWF : delay due to CAA engineer departure PPP : production has started CC8 – AI-45 STAFF –To carry out a cross-calibration study between STAFF- SA and WBD as they appears to be not in good agreement with WBD above 700 Hz while WBD/Whisper shows moderately good agreement. Under the responsibility of O. Santolik, CoI of STAFF and WBD

CAA 12th Cross-cal meeting Toulouse Oct Status of action items ( continued) CC10 – AI-8 STAFF –To explain the processing details of SA-WHI comparison, such as how power is integrated over the frequency channels and how timing is handled (linear interpolation); note that WHI signal is an average of several spectra: For each SA point, averaged over 20 s, WHI data are averaged over the same time interval, in the frequency range of SA (the 23% of the max frequency of one of the 27 frequencies of SA). Whisper STAFFSASTAFFSA

CAA 12th Cross-cal meeting Toulouse Oct Status of action items (11th cross-cal.) CC11 – AI-1 EFW/STAFF To indicate the datasets the intervals where TCOR is used to correct time. –Under the responsibility of DWP. A first version of the file has been delivered to CAA CC11 – AI- 3 All teams : Poster at Corfu : –Done CC11 – AI-7 STAFF To present an example of data in the UG from the spacecraft with failed EFW probe where an asymmetric probe configuration is used and present an assessment of the data quality. –Data quality is understood; necessary informations will be included in UG soon. The way to include it in the data is under study.

CAA 12th Cross-cal meeting Toulouse Oct Status of action items (OR 5 - STAFF) OR5-R26 Typing error in a header : corrected OR5-R27 The board notes that the STAFF and EFW waveforms are sampled at the same time, but that in many older files their time tags differ. The board requests the two teams to resolve this issue. The 2 teams work together (see hereafter). OR5-R28 The board requests that the STAFF team provides a more detailed description of the impact of EFW probe failure upon the quality of SA dataset. In progress (= CC11 – AI-7 ). OR5 - R29: The board recognize the progress the team has made in CWF datasets production and encourages the team to produce the file faster than proposed in their schedule (2001 in 2010 and the rest in 2011). Not possible due to departure of the CAA engineer.

CAA 12th Cross-cal meeting Toulouse Oct Status of action items (OR 5 -ALL) OR5 - R13 Users with specific interests may wish to access only a portion of the information available in user guides. The board recommends that both the CAA and instrument teams consider developing user guides with a fast browsing capability (links). –OPEN OR5-R14 ALL TEAMS Given the wealth of data sets available from each instrument, it can be difficult for new users to identify the data set(s) needed for their studies. The board recommends that each user guide include a short section pointing users to the appropriate data sets as a function of region of space and time. This information may take the form of flow charts or decision trees. –Doesn’t seem to be relevant to STAFF data All UGs should include table of contents, as specified by the CAA –Will be done soon

CAA 12th Cross-cal meeting Toulouse Oct Status of action items (OR 5 -ALL) OR5-R15 All teams should bear in their mind that the CAA may be closed by November 2011 if the SPC does not extend the Cluster mission. Consequently all key data production activities must be completed by summer 2011 to allow time for data ingestion and possible problem shooting. The board has noticed inconsistencies between this requirement and some proposed delivery schedules, particularly in the case of teams that are already behind schedule. The board reminds instrument teams that all data from 2009 should be ingested by September –see actual delivery table OR5-R16 The board notes that the CAA lacks observations from the commissioning phase and recommends delivery of observations particularly from January 2001 (which have already been used for many publications) and December 2000 (when there are interesting interference campaigns). –Done for January 2001; more difficult for December 2000; for PPP need of FGM 5VPS.

CAA 12th Cross-cal meeting Toulouse Oct STAFF - EFW issues (1) Recently, many exchanges between the 2 teams, including a teleconf some days ago 1 Use of STAFF SA electric components after EFW probe failure : –Saturation just after the failure. –Loss of sensitivity (46 m instead of 89 m) when one probe in density mode (V=0) –A table giving the dates of failure and of stabilised density mode configuration will be given soon to the users. Between the 2 dates, no guarantee of the quality; after, loss of sensitivity; an error bar will be given.

CAA 12th Cross-cal meeting Toulouse Oct STAFF - EFW issues (2) 2 Timing of the wave form –Both instruments have the same filters and synchronised digitalisation, same A/C converters –Both apply TCOR (EFW after 2006) –Same timing, but –No transfer function applied by EFW, but a constant group delay frequency independant; ~ OK up to ~ 6 Hz for 10 Hz filter and up to ~100 Hz for 180 Hz filters

CAA 12th Cross-cal meeting Toulouse Oct Hz Filter Phase rotation for a constant filter group delay Actual phase rotation Applying a constant group delay becomes wrong in the higher frequency part of the band Potential issue for e.g. Poynting vector calculations Solution ?

CAA 12th Cross-cal meeting Toulouse Oct Status of data set delivery Product Until now SC DWF 2009 (SC 3: 2008) * SC Complex Spectra 2009 (SC 3: 2008)* SC Images 31/07/2010 SC CWF New./. SA AGC/ PSD / SM 2009 SA Polarisation/ Propagation New 02/2001 Processed till end 2002 SA PSDNEG Caveat New SA NOTSRP Caveat New 2009 *TCOR availability

CAA 12th Cross-cal meeting Toulouse Oct Data delivery plan as of 26 October 2010 Year Product SC DWF 2009 SC3 * SC Complex spectra SC ImagesEnd of SC CWF New2001– SA AGC/ PSD / SM/ and or BE products SA Polarisation/ Propagation New – * Availability of TCOR

CAA 12th Cross-cal meeting Toulouse Oct Remain to be done Optimize the CWF code Update of calibration files Validation of processed PPP: some differences between PPP results and PRASSADCO results at Meudon to be understood before routinelly processing and delivering PPP and the associated caveat UNDEFINED_MFA The best way to indicate to the user the validity of STAFF SA Electric field products Reprocess STAFF SA level 2 (renamed SM BE, PSD BE, AGC BE) to introduce new parameters (time resolution, STAFF status word) = close the open action items Hire a new CAA engineer To produce CWF

CAA 12th Cross-cal meeting Toulouse Oct Conclusion Whereas a lot has been done (the “old” products delivered up to the end of 2009) A lot remains to be done