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This project focuses on establishing a smooth transition between mission phases for PACS ICC EGSE/HCSS set-up during the Instrument Level Test (ILT). Major topics of discussion include analysis results, calibration implementation procedures, hardware familiarity, and design revisions.
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ICC - EGSE, PCSS, HCSS, IEGSE - Otto H. Bauer MPE Garching PACS ICC
Major Goal: Smooth Transition between Mission Phases PACS ICC
EGSE/HCSS Set-up for ILT PACS ICC
AVM-ILT in the PACS Lab PACS ICC
ICC (I) • ICC Meeting at MPE, June 26/27 and Oct 7/8: Major topics: • Analysis results of Ge:Ga six-pack data • Discussion of Calibration Implementation Procedures (CIPS), corresponding Test Procedures and Command Sequences • ´Godfather´principle: ICC members become familiar with hardware • Scientific Simulator WG • Revision of design and architecture, link to HCSS framework • S/C attitude and telescope emissivity and thermal noise included • Chopper commands and spatial sampling added • Complete chain for blue photometer is ready, red part under test PACS ICC
ICC (II) • Commanding WG • AVM-ILT: Definition of on-board control procedures, test procedures and related IA/QLA requirements ongoing • EGSE WG • Improvements to TestControl to be compliant with CCS environment at Astrium • Discussion on Instrument EGSE hardware (to be delivered to Astrium) with HIFI and SPIRE • Operations WG • Support of test activities • Analysis of Ge:Ga six-pack data PACS ICC
Test Equipment and OGSE: Overview PACS ICC
F1.1 FPU integration with test cryostat and OGSE3, alignment F1.2 Electrical continuity check F1.3 Functional test exercising all mechanisms, temperature sensors, sources and detector array read-outs F1.4 Cool down to LHe F1.5 Functional test exercising all mechanisms, temperature sensors, sources and detector array read-out Q2.1 FPU Thermal behaviour Q2.2 Focus definition Q2.3 Relative alignment check spectrometer vs. photometer arrays after vibration respectively thermal cycling Q2.4 sensitivity Q2.5 spatial performance Q2.6 spectral performance E1.1 Instrument EMC tests C3.1 Absolute fluxcalibration, linearity C3.2 Flat field C3.3 Point spread function C3.4 Distortion, grating alignment C3.5 Relative Spectral Response Funct. C3.6 Wavelength-calibration using TUFIR replaced by vapour absorption cell C3.7 Instrumental profile (grating) measured with TUFIRreplaced (however, some initial profile information from absorption line measurements are planned. C3.8 Ghosts (search for spectral ghosts) TUFIR only, maybe Ge laser? (C3.9) Stray light (ghosts) with Ge laser? C3.10 Detector time response, stability (C3.11) Definition of PACS pass bands with TUFIR (not possible with Ge laser) (C3.12 ) AOT try out CQM ILT Programme("Blue" means range of parameter settings reduced or test modified) PACS ICC
Calibration WG • Compilation and release of PCD draft 7 • CIP´s and CAP´s for functional tests of Ge:Ga detectors • First ideas how to include proton irradiation measurements from tests at UCL-CRC • More details on tests of internal calibration sources • AOT design • Preparation of AOT´s for photometer • TN on spectrometer AOT´s • Work on spatial calibrators • HiRes images for stellar and extragalactic fields • Astrometric alignment on 2MASS images CAP = Calibration Analysis Procedure CIP = Calibration Implementation Procedure PCD = PACS Calibration Document PACS ICC
Completed Test Descriptions and Command Scripts Requirements CIP/CAP TIP/TAP Tcl IA Spectrometer Functional tests (F1.x, F2.x) Performance tests (P2.x) Calibration measurements (C3.x) 12 6 17 5 6 16 4 6 13 2 6 14 2 0 2 Most missing spectrometer scripts are in progress, in part pending due to missing technical information Requirements CIP/CAP TIP/TAP Tcl IA Photometer Functional tests (F1.x, F2.x) Performance tests (P2.x) Calibration measurements (C3.x) 15 6 11 1 4 9 0 1 6 0 0 6* 0 0 1 * not complete Many photometer scripts are pending due to missing technical information, situation slowly improving now PACS ICC
Current PCSS Functionalities (I) • Quick-Look Analysis QLA: monitoring of signals in Photometer and Spectrometer pixels • Offline on stored telemetry or decompressed data • Preparation of detector selection tables for uplink via GUI Inspect Telemetry and Telecommand Packets: • Automatically propagated from the MIB definitions • Overview of types, number of packets and parameters in the packet sequence • Selection on type, header fields and any telemetry measure in the packets • Extraction of telemetry measures into Tables for convenient plotting, trend analysis, operations, save/restore, export • Decompression of science data • Telemetry Packets to Data Frames • reduced signals, DMC headers and selected raw data • Access to signals, samples and DMC headers as Tables and Measures for plotting, visualization, fitting, etc… • Import of component level CRE/photoconductor data into same structures • of Tables (automatic labeling, inc. units) and on some primitive arrays • Labels, zooming, hardcopy, plotsymbols, ... PACS ICC
Current PCSS Functionalities (II) • Inspection of raw and reduced detector signals • Statistics on datasets (max, min, mean, median, RMS, sum, ….) • Polynomial fitting on datasets (e.g. integration ramps) • Some functions (FFT, Convolutions) • Plotting • of Tables (automatic labeling, inc. units) and on some primitive arrays • Labels, zooming, hardcopy, plotsymbols, ... • Store the History of your session, edit it and rerun it • Write your own data reduction scripts in jython • starting from templates and examples • Define Tables or other data structures to hold intermediate results or CAP results (Calfiles), populate them, save/restore as fits, exchange them • Export any dataset to FITS PACS ICC
Current PCSS Functionalities (III) • Improved support of CRE Data analysis • Interface to OBSW development • Image dataset (image, WCS) + viewer + operations • Image cube dataset + viewer + operations • Spectrum dataset + viewer + operations • Select/where on tables and Data • HK correlation with Science Data • QLA running on near real-time telemetry stream • MIB Calibration curves applied on housekeeping measures • More functions and optimization algorithms • Access to PACS operational Database • Data rate monitor • Use simulator data to test reduction scripts / CAPS • Access to instrument properties (e.g. Calibration source spectrum/cube, detector numbering) for different instrument models / configurations • Improved User Documentation • Optimization for Decompression • IDL Bridge implementation • Intensive User <-> developer ‘workshops’ with immediate implementations of missing functionalities • IA Processes as plug ins into QLA : BG Subtraction, Averaging, … • TC to TM verification framework • Version control for Detector Selection Tables PACS ICC
IEGSE for IST OOL TCH PACS ICC
IEGSE, CCS/PLM – DPU I/F Tests • IEGSE • H/W configuration under discussion between 3 instruments • CCS - IEGSE I/F tests: Router, SCOS 2000, TOPE, Test Control: end March 04 at Astrium, Ottobrunn • DPU 1553 I/F test: • Contract with Satellite Services, NL: test of physical layers (MIL 1553B) at MPE, first week of December: 6k€ • CCS/PLM – DPU+SPU, DECMEC Simulators: test at Astrium, Ottobrunn, second week of December, supported by Satellite Servives PACS ICC