Subject: FW: March Meeting Agenda (second draft) Date: Thu, 4 Mar 1999 08:48:07 -0000 From: Len Culhane Organization: Mullard Space Science Laboratory To: "'mwt@mssl.ucl.ac.uk'" Matt, Please circulate to other UK attendees Len -----Original Message----- From: Takeo Kosugi [SMTP:kosugi@laputa2.solar.isas.ac.jp] Sent: Thursday, March 04, 1999 1:19 AM To: Henry.Hill@msfc.nasa.gov; William.Wagner@hq.nasa.gov; doschek@ssd0.nrl.navy.mil; golub@corona.harvard.edu; jlc@mssl.ucl.ac.uk; larry.hill@msfc.nasa.gov; lika@tristang.gsfc.nasa.gov; rdb@mssl.ucl.ac.uk; title@sag.lmsal.com Cc: daiguji@laputa2.solar.isas.ac.jp; kosugi@laputa2.solar.isas.ac.jp; solar-b@flare2.solar.isas.ac.jp Subject: March Meeting Agenda (second draft) Dear Solar-B US/UK Colleagues, (Please circulate in your team.) (Cc: Japanese Colleagues) Attached below you'll see the draft agenda (second version) for the upcoming meeting. Most of your comments you've provided us as responses to the original draft have been taken into account, I believe. If you find something to improve, please let us know before or at the opening of the meeting. Note, however, that the meeting structure is very complicated involving engineers from contactor companies so that rooms for revision in the plenary sessions part are limited, though parallel sessions part may be flexibly managed. The start time of the meeting is 10:00 am every day. In the evening on the second day we are planning to have a reception party. Though not explicitly given in the table, programmatic meetings involving the PI-level persons will be held at appropriate times, maybe in the evening. Most of the participants from abroad will arrive at Narita on Sunday, March 7, and stay at the Central Hotel Machida (Phone (+81)-42-720- 3011 from abroad or 042-720-3011 from inside Japan; FAX 720-3022). If you are involved in troubles, please call me at home (Phone 0554- 66-4063; FAX 0554-66-4095) or at office (Phone 042-759-8175). Looking forward to seeing you soon, Takeo Kosugi **************************************************************************** SOLAR-B MISSION INSTRUMENTS INTERNATIONAL MEETING ISAS, A-Building 8-12(13) March, 1999 (p; plenary, o;SOT, x;XRT, e;EIS, j;XRT/EIS-joint) ---------------------------------------------------------------------------- DATE / PLACE AM(10:30-12:30) PM(13:30-18:00) Evening ---------------------------------------------------------------------------- March 8 A2C p0, p1 p1, p2 ---------------------------------------------------------------------------- March 9 A2C oA oA A1B e3.2 - e3.7, e4 AnM x1.1, x2.1, x2.2, (j1.2, j1.3) HVST Reception ---------------------------------------------------------------------------- March 10 A2C oC, oD oD, oB A1B j1.2, j1.3, j3 ---------------------------------------------------------------------------- March 11 A2C oB oE A1B e3.1, e4, e5 AnM x3.1, x3.2, x3.3, x4 ---------------------------------------------------------------------------- March 12 A2C p3 oE ---------------------------------------------------------------------------- March 13 AnM oF, oG spare ---------------------------------------------------------------------------- Abbreviations: A2C: large conf. room (2nd floor) A1B: bidding room (ground floor) AnM: n-th floor meeting room (n to be announced) HVST: cafeteria in the ISAS lodge **************************************************************************** Agenda of the Meeting ~~~~~~~~~~~~~~~~~~~~~ March 8, 10:00 - 12:30 p-chair:Watanabe ---------------------- p0. Welcome and Announcements (15min) - Agenda, meeting schedule confirmation [Kosugi, Shimizu] p1. Essence of Solar-B science required for designing - Solar-B programme overview (15min) [Kosugi] Solar-B master schedule - Solar-B science overview (30min, 30min) [Sakurai, Shibata] - SOT science and instrument trade-offs (15min,30min) [Shimizu, Title] science target FOV & pixel size polarization accuracy... March 8, 13:30 - 18:00 ---------------------- - XRT science and instrument trade-offs (20min) [Golub, Sakao] filters and FOV combination with SOT and EIS - EIS science and instrument trade-offs base line (20min) [Hara] alternative (20min) [Doschek] comment (5min) [Culhane] wavelength selection optical modelling... p2. S/C overview - Orbit (thermal and radiation environment) (90min) [Tsuneta + MELCO] - Weight and power budget - Structure satellite, optical bench, ..... nose fairing envelope / XRT mount location - Launch environment - Attitude control system (20min) [Ichimoto] requirements overview data co-alignment concept - Telemetry & Commands (20min) [Sakao (+ NEC, MELCO)] MDP, DHU and DR commands, HKs... - MDP & observation plan (60min) [Shimizu (+ MHI)] data transfer/exchanges image compression coordinated observation flare occurrence flare location observing modes, telemetry allocation March 9 - 11, 10:00 - 18:00 --------------------------- oA. OPTICS (OTA and FPP) and SCIENCE - oA1. Optical Telescope Assembly (NAO) - oA1.1. OTA design [Suematsu] design assumption and OTA design (ref. design note #J1) Radiation experiments and lens selection Collimator lens design (ref. design note #J2) - oA1.2. MELCO presentation - oA1.2.1 SOT General [Saito] introduction of MELCO presentations major discussion points performance specification conceptual drawing component list design features error budget, weight, power - oA1.2.2 Optical System [Sasaki] optical configuration primary & secondary mirror specification heat dump mirror, collimating lens, CT imaging lens etc OTA-FPP interface error budget - oA1.3. Changes in Focus Position Induced from OTA [Shimizu] shift of secondary thermal deformation of primary (ref. design note #J3) - oA1.4. OTA Action Items - oA2. FPP (LM) - oA2.1. Comments on FPIP proposal [Hanaoka] - oA2.2. LM Presentaion - oA2.2.1. Introduction/Overview (15 Min) [Levay] - oA2.2.3. Instrument Overview (45 min) [Title] - oA2.2.4. Science Measurements (40 Min) [Tarbell,Lites] - oA2.2.5. Lyot Filter (20 min) [Rosenberg] - oA2.2.6. Spectrograph (20 min) [Lites, Elmore] - oA2.2.7. CCD's (20 min) [Edwards] - oA2.2.8. Mechanisms (45 min) [Akin] - oA2.2.9. Radiation Hardness (20 Min) [Rosenberg] - oA2.3. Comments from J-side - oA2.3.1. Polarization accuracy and timing control [Ichimoto] - oA2.3.2. Lens design/throughput - oA2.3.3. Temperature control of the tunable filter - oA2.3.4. Light throughput - CaII filter observation - oA2.4. Polarization calibration procedure - oA3. FPP Action Items oB. ACS I/F and IMAGE STABILIZATION - oB1. Attitude Control System [Ichimoto] - oB1.1 observing region tracking by S/C ACS - oB1.2 measured momentum-wheel noise - oB1.3 plans for micro-vibration suppression & spacecraft structure - oB1.4 internal torque and force disturbance requirement for the rotating parts - oB1.5 Frequency-dependent task share between ACS and CT/TTM for image stablization - oB2. Sub-pixel image-stabilization requirement for filter measurement and spectrograph measurement [Ichimoto] - oB3. Correlation Tracker Concept - oB3.1. ISAS comment - oB3.2. NAO Correlation Tracker Concept - oB3.2.1. CT specifications [Ichimoto] Numerical simulation and baseline design parameters (ref. design note #J4) - oB3.2.2. MELCO presentation [Tabata] CTM planned hardware description - oB3.3. LM Correlation Tracker Concept - oB3.3.1. LM Correlation Tracker Concept (30 Min) [Tarbell] - oB3.3.2. List of FPP rotating components (LM) Mass, MOI, etc. - oB4. CT/TTM C&DH design to meet the requirement - oB5. CT/TTM-ACS I/F - oB6. Trade off studies between J-side and U-side Correlation Tracker. Discussions - oB7. Image Stabilization Action Items oC. FOV AND SCIENCE - oC1. Science concern - oC2. Aliasing and sampling requirements - oC3. Wide FOV possibility oD. STRUCTURAL THERMAL AND ENVIRONMENTAL TESTS - oD1. OTA structural and thermal design - oD1.1 Structure [Nagae] structure configuration structure analysis mechnical interface error budget and weight budget - oD1.2 Thermal Control System [Oshima] design concept thermal control specification thermal analysis contamination - oD1.3. OTA composite material test result - oD1.4. OTA mirror mount and thermal issues - oD1.5. OTA heat-dump mirror design - oD1.6. OTA-OBU I/F - oD2. OBU design - oD3. FPP structural and thermal design (LM) - oD3.1. Structural/ Mechanical (30 Min) [Katz] - oD3.2. Thermal - 15 Minutes [Rosenberg] - oD3.3. Mounting I/F and envelop size - oD3.4. Thermal design FPP radiator and S/C Heater power - oD4. ISAS environment test and vibration/shock/thermal/thermo-vacuum test specifications - oD5. OTA-OBU-FPP structural and thermal I/F (LM) - oD5.1. OTA-FPP tolerance requirement - oD6. Structural test model (STM) and Thermal test model (TTM) fidelity - oD7. OTA/FPP structural and thermal design/test master schedule - oD8. Thruster-FPP/OTA locations and contamination - oD9. Contamination Control (10 min) [Rosenberg] E. COMMAND AND DATA-HANDLING AND SCIENCE - oE1. ISAS Spacecraft constraints [Sakao] - oE1.1. Telemetry bandwidth/Data recorder capacity - oE1.2. Packet telemetry I/F - oE2. NASA GN - oE3. MDP-FPP C&DH concept [Shimizu] - oE3.1. Role of MDP - oE3.2. Arbitration of data rates for three telescope - oE3.3. Flare and non-flare observations - oE3.4. Observing sequence control (table) - oE3.5. Data flows from SOT - oE3.6. MDP-FPP interface concept - oE4. MDP hardware description - oE5. FPP science data and cadence (LM) - oE5.1. Onboard science processing (LM) - oE5.1.1. Scientific necessity of onboard creation of magnetograms and dopplergrams - oE5.1.2. On-board Science (Magnetogram/Dopplergram) Processings - oE5.1.3. FPP and MDP processor capability - oE6. LM C&DH concept (LM) -o E6.1. C&DH Overview (15 Min) [Levay] -o E6.2. C&DH/Electronics (30 Min) [Edwards] -o E6.3. On-Board Software (20 min) [Levay] - oE7. Image compression - oE7.1. NAO presentaion [Hanaoka] errors caused by compression - oE7.2. LM presentaion - oE8. Doppler compensation requirement [Kano] - oE9. FPP-E--MDP&S/C hardware I/F (LM, NAO) - oE9.1. Command/status hardware I/F and protocol - oE9.2. Fast data I/F and protocol - oE9.3. HK (temp./current monitor etc.) I/F - oE9.4. Power I/F 28V versus 51V Input filter configuration Current limiter - oE10. FPP power budget (15 min) [Edwards] - oE11. PM electrical test and MDP-FPP internal I/F test oF. Test Issues - oF1. SOT master schedule [Saito, Tsuneta] Overall SOT master schedule delivery items schedule - oF2. OTA Test - oF2.1. Test Plan [Saito] PM (Proto Model) MTM (Mechanical Test Model) TTM (Thermal Test Model) FM (Flight Model) - oF2.2. OTA testing of optical performance [Suematsu] - oF3. OTA development & test plan/major milestones [Tsuneta] - oF4. FPP Integration and Test (20 min) [Levay] - oF5. PM electrical test and MDP-FPP internal I/F test oG. Programmatic Issues - oG1. Overall SOT master schedule/delivery items/schedule - oG2. S/C strawman master schedule and critical path - oG3. Interface control document and EICA - oG4. ITAR and export/import procedure (NASA) - oG5. Summary of action items - oG6. Future meetings ------ x1. Telescope Design and Science - x1.1 Telescope optics (SAO) field-of-view angular resolution visible-light optics - j1.2 Filters (SAO/NAOJ) [U: TBD, J: Kano] filter materials temperature diagnostic capability - j1.3 Observation sequence (NAOJ/SAO) [J: Sakao, U: TBD] target and cadence observation control with MDP (XRT-specific) observation table structure x2. Electronics and CCD - x2.1 CCD device testing status and current situation (NAOJ) [J: Kano] radiation shield and CCD cooling (NAOJ) [J: Sakao] input from the U-side (SAO,LM) [U: TBD] schedule for the CCD selection [J: Sakao] - x2.2 Electronics J-side electronics (XRT-E; NAOJ) [J: Sakao] U-side electronics (SAO) [U: TBD] J-US signal I/F J-US power I/F (DC/DC converters, noise filters, current limiters) E-boxes location x3. Telescope Structure: thermal/mechanical - x3.1 Telescope tube (SAO) [U: TBD] mechanical structure of the telescope optics components and mounting mechanical components (filter/shutter assemblies, entrance door, etc., necessity of torque compensators) XRT mounting I/F to the S/C alignment of the XRT thermal design (incl. heaters) - x3.2 CCD camera head (XRT-S; NAOJ) [J:Yamaguchi(Meisei)] mechanical structure (radiation shield and CCD cooling) CCD radiator and thermal design - x3.3 Discussion (SAO,NAOJ) error budget / focus adjustment and maintenance x4. Schedule/Milestones Discussion. Summarize List of A/Is tests carried out by NAOJ and by SAO flight XRT-E/S delivery to U.S. electric simulators for U.S. testings (& for PM testings at ISAS) thermal/structural analysis of the telescope delivery of thermal/mechanical test model to ISAS ISAS design standard for electric/thermal/structural issues ISAS system testings control document preparation x5. Schedule and milestones - (x5.1) XRT master schedule - (x5.2) List up of XRT A/Is and their due dates ------ j3. Subsystem requirements [UK/US/J] science targets/requirements achievements of the previous s/c (CDS/SUMER...) sensitivity/counting rates spectral resolution spatial resolution TRACE images - finest solar structures candidate wavelength ranges multilayer coating (Sc-Si) [NRL] grating; 2nd order efficiency [NRL] - Baseline (OAP) EIS - overall instrument description optical system wavebands detector system mechanical structure technical problems - science capability and coordination with the other Solar-B active regions flares quiet sun (coronal holes) - counting rates & line profiles - Alternative (Cassegrain) EIS - overall instrument description optical system wavebands detector system mechanical structure technical problems - science capability and coordination with the other Solar-B active regions flares quiet sun (coronal holes) - counting rates & line profiles e3. EIS design - e3.1 System engineering overview [MSSL, UB] mass budget power budget electronics block diagram software flow chart structure thermal analysis - e3.2 Optics optical performance of mirror(s) & grating [NRL] tolerances; instrument thermal control [NRL, NAOJ] scanning mechanism [NRL] slit/slot assembly [NRL] slit length/width, slot width slit/slot exchange mechanism filters/shutter [MSSL] minimum exposure time calibration of optical subsystem [NRL] counter balances of moving parts - e3.3 CCD camera issues [MSSL] architecture; format, read-out speed cooling/baking, radiator [UK, J] - e3.4 DPU electronics and software issues [MSSL] architecture microprocessor selection observing modes/observation controls automatic exposure control commanding and operation - e3.5 Contamination control [J, RAL] requirements, methods prefilter hood purging/vacuum door (mechanism) - e3.6 Structures [UB, MSSL] electronics boxes heaters, thermal control - e3.7 End-to-end calibration [MSSL, RAL, NRL] e4. System and system interface - e4.1 MDP interface [MSSL, J] coordinated observation flare occurrence, flare location data line(s) signal interface header format... commanding, hks flare information, signals... - e4.2 Attachment to the s/c kinetic mount launch lock - e4.3 Coalignment with other telescopes [J] - e4.4 Data analysis software e5. Schedule and milestones - e5.1 EIS schedule; UK/US/J task-sharing Solar-B milestones PM testingc optics integration prelaunch testing - e5.2 programmatics resolution of the telescope design [ALL] subassembly/task matrix by instituttions [MSSL] overall schedule [ALL] interface freeze deadline [ALL] MSFC expectations/goals for EIS [MSFC] interface documentation approach [ALL] ----- March 12, 10:00 -12:30 ---------------------- p3. Summary (report & conformation) - List up of SOT conclusions, A/Is and their due dates - List up of XRT conclusions, A/Is and their due dates - List up of EIS conclusions, A/Is and their due dates - Next meetings **************************************************************************** (End of Message)