1 / 18

Status

This document provides the current status of the ASTRO-G project, including budget requests, project team formation, and ongoing developments. It also discusses the status of the ASTRO-G GPS receiver and LNA developments.

pattison
Download Presentation

Status

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. Status

  2. ASTRO-G current status • Budget Request to the government. (July, 2007) • Approved as a new project. (not a full) • Project team formation • Project Manager: Hirobumi SAITO + ~20 engineering staffs • Edwards Akihiro DOI (April~) • Hirabayashi Masato TSUBOI (April~) • NAOJ: Kameno is now in Kagoshima-U. Hagiwara (Nov.~) • New Post-Doc in JAXA and NAOJ • Contractor Selection. • Bus system, Main Antenna, Coolers • On going : Thrusters, Low Noise Receivers • I/F control document (ICD) preparation. (March-May, 2007) • Preparation of stating the project from April, 2007 • System Definition Review (March, 2007) • Review for Project Starting. (March, 2007)

  3. Deployment of ETS-VIII antenna(Dec. 25-26, 2006)

  4. Deployment of ETS-VIII antenna(Dec. 25-26, 2006)

  5. VSOP-2 System Block Diagram ObservingSystem Telemetry handling/heater control system Telecommunication/ Command System Attitude and orbit Control system Power supply system

  6. VSOP-2 “Latest” Block diagramof the observation system

  7. ASTRO-G GPSR status • 3 candidates • JPL GPS receiver. • Blackjack : ~ IGOR, Blackjack • New development for including Galileo IDC (I/F control Document) -> Need JAXA/JPL contract • BRE • IGOR ~ Blackjack: 4 RF ch, 48 tracking ch., L1, L2, GPS only • Pyxis: 4 RF ch. 96 tracking ch, L1, L2, L5, GPS/Galileo • Domestic JAXA/NEC-Toshiba Space GPSR • 2 Ch RF, 8 ch, L1, L2, GPS only • Need do decide weather we need Galileo or not ? (Feb. 2007) • Need ICD for ASTRO-G soon (April 2007) • Budget source ? JPL ? / ISAS (JAXA)

  8. ASTRO-G LNA status • Accelerometer : Decided not to use for ASTRO-G • Study of SLR possibility. • candidates • Domestic Development • EUDYNA(Former Fujitsu) Device (Baseline) • Discrete HEMT for 8 GHz. • MMIC HEMT (InGaP／InGaAs p-HEMT) development (22, 43 GHz) • InP development (other budget) • NRAO RX • European RX • Need to discuss cost, schedule, ICD for possible laboratory. • Need ICD for ASTRO-G soon (April 2007??) • Budget source ? ISAS (JAXA)/ JPL or ESA/EC …

  9. Design of the frontend • LNA • MMIC HEMT LNAs • Wide band, low loss feed and polarizer studies • Cryogenic studies • Space-qualified cryogenic coolers ASTRO-E2 (Xray) ASTRO-F(Infrared) PLANET-C(Vinus) SMILES (Earth Obs.)

  10. Current status of Front-end Developments • 22/43 GHz Cooled Receiver • MMIC Device • High Quality & Reliability GaAs MMIC HEMT device • Low Power Consumption • Microwave components • Low Thermal Conductivity WG • Circular Polarizer • Horn • Possibility of design without isolator • Thermal Shield at horn window • Layout components 110 K 30K 2 coolers ? ASTRO-F type

  11. Schedule

  12. ASTRO-G Development schedule Concept Design Basic Design Detailed D. Manufacture and Test Operation WG phase Pre-Project PM FM Design FM Manu I/F test Unit test Final Test FOp Operation Phase -E Pre Phase -A Phase -A Phase -B Phase -C Phase -D Launch △ Project starts △ Review △ Review △ Review △ Review More than 5 years operation △ △ △ △ △ △Budget Request Selection of the science mission in ISAS △System I/F Fixed Approval of project preparation Design of PFM Structure Antenna, Obs.system Attidute control system NEXT (X) Solarsail (Jupiter) △Selection of contractors Ground Tracking Stations Developments Op. Test

  13. ASTRO-G Development schedule (Observing system) Concept Design Basic Design Detailed D. Manufacture and Test Operation WG phase Pre-Project PM FM D. FM M. I/F T Unit test Final T. FOp Operation △7B Phase -E Pre Phase -A Phase -A Phase -B Phase -C Phase -D Launch ICD FIX △Review △Review △Review Concept D. Basic D. MTM/TTM Detailed D. MTM/ TTM M. MTM/ TTM T. PFM R. I/F T. Final T. F Op In Orbit Operation △11B △10B △7B △2B △8M △2B △7B △12B 10B△ △2B ↑ ↓ Concept D. 1 Module Basic D. Main Str. Detailed D. Main Str. M. PFM R. Antenna T. I/F T. Final T. F Op In Orbit Operation ICD FIX 6M △ FM D. FIX △ I/F Test (11) S/C simulator EM D. EM M. EM T. Concept Design △3B △1B △7B △11B FM D. FM M. FM T △3B Freq Control Doppler Mes. AUX data extract (When? -TBD) △7B △5B △10B IF I/F QPSK DEM VSI I/F D M. T D M. T △9B △6B

  14. ASTRO-G TS Development schedule (DRAFT) Concept Design Basic Design Detailed D. Manufacture and Test Operation WG phase Pre-Project PM FM D. FM M. I/F T Unit test Final T. FOp Operation △7B Phase -E Pre Phase -A Phase -A Phase -B Phase -C Phase -D Launch ICD FIX △Review △Review △Review FM △ I/F Test (11) S/C simulator EM D. EM M. EM T. △Ready for TS (9) Concept Design △3B △1B △7B △11B D M. T D M. T IF I/F QPSK DEM VSI I/F Freq Control Doppler Mes. AUX data extract (When? -TBD) △9B △6B request△11 △3 review △8 MoO deadline △9 MoO deadline Concept Study money GTS GRT Op. Test D M. T EC FP7 deadline Budget National Agency To ESA D M. T D M. T

  15. VSOP-2 international collaborations • VSOP-2 collaboration Based on VSOP type collaboration • Tracking stations (1 JAXA, 1-2 NASA, 1 ESA) Compatibility test at 2010 • GRT(Ground Radio Telescope)’s and Correlater (GVWG) • E-ASIA Collaborations: GRT, Correlater, Receiver ? • EVN, SKA, VLBA, Australia, Asia… GRT test observation at 2011. Pre-launch survey • Navigation • On-borad instruments (Not in VSOP) • GPSR, Accelerometer, Transmitter • LNA • Simulator, AIPS(++?) update. • Forming International WG. • International Science Team (Survey etc..)

  16. Mission Responsibility Plan (DRAFT)

More Related