1 / 12

BepiColombo Project Status MMO System Status MMO Development Schedule Hiroshi Yamakawa

BepiColombo Project Status MMO System Status MMO Development Schedule Hiroshi Yamakawa JAXA BepiColombo Project Manager ISAS/JAXA MMO-SWG #3 Mar 22 2006 Kyoto University. Project Status. 14 th ESA-JAXA Meeting in January at ESTEC. [ESA]

dolf
Télécharger la présentation

BepiColombo Project Status MMO System Status MMO Development Schedule Hiroshi Yamakawa

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. BepiColombo Project Status MMO System Status MMO Development Schedule Hiroshi Yamakawa JAXA BepiColombo Project Manager ISAS/JAXA MMO-SWG #3 Mar 22 2006 Kyoto University

  2. Project Status 14th ESA-JAXA Meeting in January at ESTEC. [ESA] • After December Ministerial Conference and February SPC Meeting (Discussion on ESA budget and mass), ESA started the ITT (Invitation to Tender) process from February 2006 (due May 17). • ESA Prime contractor will be defined in the fall 2006. ESA & JAXA will make a Kick-Off meeting with the prime in November 2006. [JAXA] • Overall development schedule is relaxed by about 1 year. • In 2006FY (2006 Apr. – 2007 Mar.), MMO design/development in Japan will be concenrtated to the critical parts. • In 2007FY (2007 Apr. – 2008 Mar.), design & development in accordance with ESAImplementation Phase from early 2007. • Extension of the ESA-JAXA LoA (Letter of Agreement) cosigned by ESA DG Dr. Dordain and JAXA President Dr. Tachikawa from end of 2005 to end of 2006 (MoU in progress to be signed 2006).

  3. Mission Scenario Launch: 2013 August Venus swing-by x 2 Mercury swing-by x 2 Arrival: 2019 August Mercury Orbit Insertion Chemical Propulsion [CPM] Interplanetary Cruising Electric Propulsion [SEPM] MPO 2.3h 400km x 1500km Soyuz Fregat 2B: MPO+MMO 9.3h 400km x 12,000km Red: Blue: Observation: 1 Earth year

  4. Mission Design Status-1 [Presented at MPO SWG] .Various alternative mission scenarios studied during 2005. .Current baseline (for industrial ITT): . Launch by Soyuz 2-1B/Fregat from CSG (Kourou): . Launch in Aug. 2013 window (6-year cruise duration) . MCS composite spacecraft: - (ESA's) MPO and (JAXA's) MMO science spacecraft - Propulsive Segment . Electrical Propulsion interplanetary transfer: - Twin Gridded-Ion thrusters firing inside Venus orbit - Minimum thrust-to-mass ratio adopted for mass saving . Lunar, Earth, 2 Venus, 2 Mercury flybys/gravity assists . Gravity capture into Mercury orbit . Final Mercury orbit adjustment by chemical propulsion . Science operations: 1 year nominal + 1 year extended . Primary backup: Feb-14 launch (also 6-year cruise duration, lower dV)

  5. Mission Design Status-2 [Presented at MPO SWG] Nominal Interplanetary Trajectory(2013) Departure: . Launch Period opens: 1 Aug. 2013 Arrival: . Date: 31 Aug. 2019 +/-88 days . Mercury True Anomaly: approx. 67deg . Transfer Time: 6.1years dV Capabilities: . Electrical: 7.9km/s, Chemical: 1.1km/s . Nominal (incl. Navigation/contingencies) Mass Performance: . Launch: 2298kg to 314000km apogee . Mass into MMO Orbit: 1031kg (incl. System Margin) . MPO Mass: 500kg-class (Nominal) . MMO Mass: 250kg under JAXA responsibility (includingEquipment and System Margin)

  6. BepiColombo MMO Schedule (Jan. 2006) ESA JAXA both Now!! MMO-STM at ESTEC (by ESA plan) MMO-FM at ESTEC (by ESA plan) Launch 2013.8B Definition phase [old Ph-A/B] ESA MMO&MCS STM test ITT Implementation phase [old Ph-B/C/D] Integrated Test & AIV RFP Payload Selection MMO-STM 2009.5M MMO-EM 2010.6B MMO-FM 2011.9B Mercury orbit 2019.8 ~ 2years Component Dummy QR 2011.8E AO STM test 2008.8E AIV 2010.11B-2011.7E 2008.7M-2009.5E @JAXA/ESTEC Sub-Env test 2010.7B-9E CDR 2009.6E MIC/EIC 2010.3B-6B PDR 2007.12E PRR 2005.3B FM(Ph.C/D) PM (Ph.B) JAXA (ISAS) Technical study Pre-PM2 Pre-PM1 PRR=Preliminary requirements Rev. PDR=Preliminary Definition Rev. CDR=Critical Design Rev. QR=Qualification Rev. (Calendar year)

  7. Project Schedule: 2007-2009(as of Mar. 2006) [JAXA] 2007 Sep-Nov MMO Subsystem / Payload level PDR > Start of the development of STM / EM 2007 Dec MMO System level PDR > Start of the System STM development 2008 July > Start of System level STM test Oct.(TBD) > Start of System level EM test 2009 Jan-Mar MMO Subsystem / Payload level CDR > Start of the development of FM 2009 June MMO System level CDR > Start of the System FM development

  8. Red: Meetings incl. Payload team members Black: Meetings with ESA 2006 Jan 10 MMO Design Meeting #3 (ISAS) Jan 19-20, 22-23 14th ESA-JAXA Meeting (ESTEC) Feb-Oct? ITT – Selection of ESA prime Mar 8-9 MPO-SWG #3 (ESTEC) Mar 22 MMO-SWG #3 (Kyoto Univ.) Mar 24 JAXA MMO Phase 0-1 Safety Review May 9-11 ESA-JAXA I/F meeting #15 (ISAS) May or June MMO Design Meeting #4 & MMO-SWG #4 (ISAS) Sep 26-28 Bepi-SWT #3 (Padova, Italy) Oct 2-5 ESA-JAXA I/F meeting #16 (ESTEC/ESOC) Nov 13-14 ESA-JAXA I/F meeting #17 (ESA's Prime) [Kick Off meeting] Dec TBD MMO Design Meeting #5 & MMO-SWG #5 (ISAS) Dec TBD ESA-JAXA I/F meeting #18 (ISAS) MMO System Schedule: 2006 (as of Mar. 2006)

  9. MMO-MCS I/F related to payloads~ Short Summary of ESA-JAXA meeting #14 (Jan 2006) ~ 1. Mechanical 1) Total Mass “250kg” including equipment-level and system-level margins (no additional margin) 2) Other items HGA 90-deg inclined during launch. Clamp-band with soft-release MMO separation mechanism. 2. Electrical 1) Launch & Cruise ESA and JAXA agreed on MMO dormant mode during cruise. 2) Battery maintenance (& health check) Every 3 month 3) Other items MMO cruise phase power from MPO: 300W 3. Thermal 1) in Orbit MMO temperatures would benefit from the injection approaching from the South Pole. (to appear later) 2) Other items MMO Sun shield design Details will be discussed and determined after the ESA prime selection after Nov 2006.

  10. High Gain Antenna with Pointing Mechanism HGA(High Gain Antenna) APM (Antenna Pointing Mechanism) ADM (Antenna Despun Mechanism)

  11. MMO System Status related to Payloads~Summary of MMO Design Meeting #3 (Jan 2006)~ 1. Mechanical(to appear later) MSASI: moved to the MMO lower deck. MPPE: Lower deck adjuster will be moved to outside. Relaxation of location restriction at the corner of the side panel. 2. Electrical(to appear later) According to the system redundancy studies, independent power supply might be allocated for instruments out of the MDP chassis. 3. Thermal(to appear later) Revised thermal analysis: 2006/4/M (-2006/5/E) Both Hot (at Mercury) & Cold cases (in Cruising) should be taken care of. * Request: Please provide the latest thermal capacity & power consumption in I-ICD. * Problems: Conductive White Paint (HGA/MGA)  Non-conductive? High temperature valve selection (Reaction control system) 4. Communication For the relaxation of the mechanical environment, the size of HGA is little bit reduced. 5. PA & Safety(to appear later) “MMO safety review” is now undergoing in JAXA.

  12. Request to Payload Team Members • Document Update Schedule • Please update MMO I-ICD (Instrument Interface Control Document) at any timing if you have change in the Interface. Especially, the latest thermal capacity & power consumption. • Please update MMO CDD (Configuration Data Document), accordingly. • Please submit a short Progress Report at the subsequent MMO Design Meetings with the list of Action Items & Requests to System / other subsystems & payloads.

More Related