Mullard Space Science Laboratory PEACE CAA Review MSSL-UCL PEACE CAA Review, MSSL-UCL, UK, 26 November 2008
MSSL Status of Action Items 26 Nov 2008 1. CC 8 -AI-30 to Whisper/PEACE (due: 19 Nov 2008): to investigate the discrepancy in density on 3 Nov 2006, 15 -24 UT. The wave spectrogram seems to suggest that the Whisper density is correctly determined and so there must an issue in PEACE density determination. The other example on 5 Mar 2007, 21 -22 UT, is more complex. CLOSED As it was made clear on the slide in question, sc 4 PEACE densities for these time intervals are unreliable. Calibration validity end for sc 4 is 16 -05 -2006, hence PEACE densities under investigation were calculated using calibrations for 16 -05 -2006 that can give wrong densities. The message here is we need more WHISPER intervals for time beyond 16 -05 -2006. 2. CC 8 -AI-22 to CIS/PEACE (due date: next progress meeting - 26 Nov 2008): to include a quality factor to their moments data to filter out poor quality data, e. g. , when only noise is observed by CIS due to low ion flux measurements, when one can assume strong noise from photoelectrons in PEACE, etc. The quality factor needs to be specified also in the user guide IN PROGRESS Status Partial. Coverage quality flag will flag moments to show if the energy distribution is fully captured or not (see PEACE team meeting ppt). Other examples include Status Count. Stats. 3. CC 8 -AI-31 to PEACE (due: 26 Nov 2008): to clarify the definition of Quality Flag, i. e. , when does the flag get a value of 1 CLOSED In the ppt at the CAA: Shows if the energy sweeps/polar zones that we transmit in PAD include the pitch angles nearest to the magnetic field direction or not (as it happens when the magnetic field rotates during the spin) : 0 – PAD selection is correct 1 – PAD selection is incorrect This definition has not been finalised yet.
MSSL Status of Action Items 26 Nov 2008 4. CC 8 -AI-49 to ALL TEAMS (due: next progress meeting – 26 Nov 2008) to propose the key datasets for the simple products in response to document CAA-EST-TN-017 CLOSED? : see Andrew Fazakerley's email response to Harri 5. CC 8 -AI-50 to ALL TEAMS (due: next progress meeting – 26 Nov 2008) to check the Dataset Names of all products that they are all unique and that they describe the dataset properly (see document CAA-EST-TN-018) CLOSED ? pending to ANF checking
MSSL Status of Action Items 30 Nov 2008 6. CC 8 -AI-6 to ALL TEAMS (due 30 Nov 2008): to present suggestions what crosscalibration plots should be done (see Review Board 2008/R 1 recommendation) OPEN 7. CC 8 -AI-7 to ALL TEAMS (due 30 Nov 2008): to present suggestions what survey (1 minute averages) parameters should be produced (see Review Board 2008/R 3 recommendation) OPEN 8. CC 8 -AI-8 to ALL TEAMS/Perry (due 30 Nov 2008): to present ideas what data-mining options should be provided to the users (see Review Board 2008/R 5 recommendation) OPEN 9. CC 8 -AI-9 to ALL TEAMS (due 30 Nov 2008): to present plots they wish to made available for the CAA users: the most important ones can be pre-generated but most will be available only via on-demand option (see Review Board 2008/R 6 recommendation) OPEN
MSSL Status of Action Items 01 Dec 2008 10. CC 8 -AI-21 to CIS/PEACE/RAPID (due 1 Dec 2008): to specify the frame velocity in their metadata whether it is inertial or spacecraft. CLOSED The coordinate system of the velocity data in the MOMENTS files is GSE. The spacecraft velocity is not taken into account.
MSSL Status of Action Items 31 Jan 2009 11. CC 8 -AI-1 to ALL TEAMS (31 Jan 2009): to present a draft layout of the papers they wish to include in the book. Notice that for the instruments that have extensive calibration and cross-calibration tasks may be better to produce several separate papers rather than one long paper. OPEN 12. CC 8 -AI-24 to PEACE (due: 31 Jan 2009): to investigate the EFW comparisons and to explain the particularly large deviations during the events on pages 25, 26, 28, 33, 34, 37, 42, 43, 45, 47 (see plots in document Cross. Cal 8 -Annex 5 -EFW) OPEN Yuri Khotyaintsev said that they used CAA PEACE moments. 25: 26: 28: 33: 34: 37: 42: 43: 45: 47: sc 1 sc 3 sc 1 04 -01 -2004 04 -03 -2001 22 -02 -2005 12 -12 -2002 02 -11 -2003 01 -11 -2003 05 -11 -2003 08 -04 -2004 05 -11 -2003 13: 30 -15: 00 07: 30 -10: 30 11: 00 -14: 00 12: 00 -13: 30 00: 00 -03: 00 00: 00 -01: 10 12: 00 -14: 00 06: 00 -08: 00 18: 00 -21: 00 13. CC 8 -AI-10 to ALL TEAMS (due 31 Jan 2009): to prepare the draft answers to the general team recommendations (T 1 -T 5) made by the 2008 Review Board OPEN
MSSL Status of Action Items 9 th Xcal 2009 14. CC 8 -AI-13 to ALL TEAMS (due date: 9 th Cross-Cal): to investigate whether it is feasible to produce the data files from the commissioning phase as it contains important calibration cycles and cross-calibration campaigns that can potentially be very valuable to the next generations of space scientists. OPEN YES, its technically possible.
MSSL Action Items to Other Teams 1. CC 8 -AI-29 to Whisper (due: 19 Nov 2008): to investigate the densities on 25 Feb 2006, 11 -16 UT (C 3 & C 4); 30 Jan 2006, 8 -12 UT (C 3); 4 Feb 2006, 10 -13 UT (C 3). For reference, see the plots (pages 43 -45) in document Cross. Cal 8 -Annex 6 -PEACE 2. CC 8 -AI-27 to ESTEC/EFW (due: 1 Dec 2008): to give a priority for the file production/ingestion for years 2004 -5. The files should be provided and ingested before Dec 2008. 3. CC 8 -AI-31 to EFW (due: 9 Dec 2008): to produce the EFW CSDS/PP files for recent years that PEACE can proceed in their calibration activities 4. CC 8 -AI-32 to Whisper (due: 31 Dec 2008): to produce preliminary density files in the solar wind & magnetosheath for a number of days in years 2006 -7 and to provide them to the PEACE and CIS teams and to inform the details of the dates in the monthly reports 5. CC 8 -AI-3 to WBD/ESTEC (due: 31 Jan 2009): to create a new WBD dataset on WBD densities. Caveat information may be needed to tell when the cut-off and the derived density are not local. 6. CC 8 -AI-4 to WBD/Santolik (due: 31 Jan 2009): to produce the tail density files for years 2007 -8.
MSSL Data Delivery Plan 1. 2008 Review Board – T 5: maintain the delivery plan? 2. Are reprocessing of earlier years necessary? Yes.
MSSL Status of Data Delivery 1.
MSSL What PEACE products are currently in the CAA? As of 09/03/2008: CAA Pre-Science data products CAA Non-Science data products CAA Value Added Science data 1234 – spacecraft Colours of sc numbers indicate version numbers: v 1, v 2, v 3, v 4, v 5 – indication of which software version was used and hence generation date – not a calibration version number! v 4 or v 5 – the best calibrations are used 2001 OMSH OMSL PADMARH PADMARL PADLARH PADLARL PADHARH PADHARL NOIH NOIL LERH LERL 3 DRH 3 DRL 3 DXPH 3 DXPLARH 3 DXPLARL 3 DXH 3 DXLARH 3 DXLARL 3 DXPAH 3 DXPAL PITCH_SPINAV PITCH_FULL MOMENTS 2002 1234 2003 1234 1234 1234 1234 ---1234 --------1234 2004 1234 1234 1234 1234 ---1234 --------1234 2005 1234 1234 1234 1234 1234 1234 1234 1234 ---1234 1234 ---1234 ------------1234 1234 1234 1234 1234 ---1234 --------1234
MSSL Instrument Processing Pipeline 1. MOMENTS were generated for 2006, awaiting checking before submission to the CAA 2. We are currently working on a code called peace. CAAvalidate that will check PEACE 2. CAA files (either CDF or CEF). It will automatically check for missing spins in data, as well 3. as other checking (to begin with sweep modes & presets, timing, checking if the data 4. contains real values or just fill values). Note that this is totally different to CEFpass, which only checks if CEF files are valid in terms of the CEF format (the data in them could still be complete rubbish and it wouldn't care or know about this). 1. peace. CAAvalidate currently checks for: - spin duration (only checks that it's within reasonable limits at the moment) - SPOS (only checks that it's within reasonable limits at the moment) - Angle. SR 2 phi (only checks that it's within reasonable limits at the moment) - Mode_Sensor - sweep mode(s) - sweep preset(s) - Mode_Data. Origin - MCP level It has already been used to find (and fix) a couple of problems, e. g. PADMARL had Mode_Data. Origin = 21 when it should have been 4, some days had no PITCH_SPIN or PITCH_FULL when they should have had data. It also knows what data should be available each spin, although so far it will only work with
MSSL Instrument Processing Pipeline 3. Supporting analysis software: plotcf and PEACEmoments CAA Do the CAA want to host this on their own website rather than just link to MSSL? How should we deliver this software? plotcf: currently there are versions available for - Linux (2. 4. x kernels) - Linux (2. 6. x kernels) - Solaris (Solaris 10) - Mac OS X - source code The two Linux versions, Solaris and source code packages are all automatically updated every night (the latest version is checked out the svn repository and the different versions built). The Mac OS X version is made manually by Andrew Lahiff. Automated "testing" of plotcf is not quite finished, but we have started making a library of CDF and CEF files to test it with: http: //www. mssl. ucl. ac. uk/missions/peace_ops/builds/plotcf/ i. e. CDF and CEF files from different data products from each experiment. There are currently a few issues that need to sort out (one problem we can't fully resolve until the people responsible for the CEF format finally resolve the FILE_TIME_SPAN problem).
MSSL Instrument Processing Pipeline PEACEmoments CAA: currently there are versions available for - Linux (2. 4. x kernels) - Linux (2. 6. x kernels) - Solaris (Solaris 10) - Mac OS X - Windows - source code The two Linux versions, Solaris and source code packages are all automatically updated every night (the latest version is checked out the svn repository and the different versions built). The Mac OS X and Windows versions are made manually by Andrew Lahiff. However, we will soon (possibly this weekend) attempt to use the cross-compiler I installed on the SAN to compile the Windows version on Linux (e. g. mssl. AD). This will hopefully be possible once the Windows Qt libraries and executables are uploaded to MSSL. Once this is done, the Windows version of PEACEmoments CAA will also be updated automatically every night. The two Linux versions of PEACEmoments CAA are currently tested every night. The results are here: http: //www. mssl. ucl. ac. uk/missions/peace_ops/builds/peacemoments-caa/ The 33 tests check that each distribution (or combination of distributions) work, that different types of files work, different coordinate systems work, etc. The webpage above shows that one test has failed - there is a very tiny difference between the PEACEmoments CAA and PEACEmoments IDFS results when spacecraft potential correction is used. This will need to be sorted out.
MSSL Calibration and Cross-calibration Activities 1. Data quality of the datasets We expect to have good data for v 5. 1: sc 1, 2 01/2001 – 05/2007 sc 3 01/2001 – 10/04/2007 sc 4 01/2001 – 16/05/2006 Data beyond the above dates use calibrations on the last validity date and can be not a good quality. There are status flags in the files that will help the user by providing information on the quality of the dataset. 2. Status of calibration activities -- current calibrations v 5. 1 -- working on calibrations v 5. 2 (a bug in v 5. 1 corrected), extending v 5. 2 to 2008 3. Status of cross-calibration activities -- performed PEA – WHI and WBD density comparison studies for selected intervals from 2001 till mid 2007 in the sheath and in the tail -- we performed PEACE velocities comparisons with CIS (2001 -2004) and EFW (2001 -2004) in the plasmasheet
MSSL Calibration and Cross-calibration Activities 4. What should be done in order to improve the quality and completeness of the products? -- need all intervals for 2006 – present time from WHI in the sheath in order to extend PEACE GF calibrations through this time range -- we would like to have more intervals from WHI and WBD in the magnetotail to increase the number of examples of density comparisons in the high part of the PEACE energy range -- in order to verify PEACE inter-anode calibrations we would like to compare PEACE velocities with CIS and Vperp_z data from the CAA for times after 2004
MSSL Status of Documentation Delivery 1. Delivery plan documentation ICD – during December? UM updates – tbc 2. Instrument user guide PEACE Science User Guide (v 1. 2) to be updated to include new products 3. User guide to the instrument datasets on CAA (similar to CSDS user guide) What is this?
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