China's Ground Segment Building the Pillars of a Great Space Power
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Analysis of Narrow-Line Laser Cooling and Trapping of Sr Atoms in Microgravity Environments
applied sciences Article Analysis of Narrow-Line Laser Cooling and Trapping of Sr Atoms in Microgravity Environments Jie Ren 1,2, Hui Liu 3,* , Xiaotong Lu 1,2 and Hong Chang 1,2,* 1 CAS Key Laboratory of Time and Frequency Primary Standards, National Time Service Center, Xi’an 710600, China; [email protected] (J.R.); [email protected] (X.L.) 2 School of Astronomy and Space Science, University of Chinese Academy of Sciences, Beijing 100049, China 3 State Key Laboratory of Photoelectric Technology and Functional Materials, International Collaborative Center on Photoelectric Technology and Nano Functional Materials, Institute of Photonics & Photon-Technology, Northwest University, Xi’an 710069, China * Correspondence: [email protected] (H.L.); [email protected] (H.C.) Received: 7 June 2020; Accepted: 15 July 2020; Published: 17 July 2020 Abstract: Obtaining ultracold alkaline earth(-like) atoms in space encounters the problem of performing narrow-line laser cooling in microgravity environments (µ-gEs). This paper reports an analysis of the magneto-optical trap (MOT) based on the narrow-line transition in 88Sr, while paying special attention to the role of the gravity. This analysis suggests the MOTs based on narrow-line transitions cannot be cold and dense enough in a µ-gE. We thus propose a strategy: that one can use a dual-frequency MOT to realize a low-temperature, high density, and high transfer efficiency, narrow-line red MOT in µ-gEs. Keywords: lasering cooling and trapping; microgravity; Monte Carlo simulation; optical lattice clocks; in space 1. Introduction Great efforts have been made in recent decades to push cold atoms into microgravity environments [1]. -
Earthcare and Himawari-8 Aerosol Products
EarthCARE and Himawari-8 Aerosol Products Maki Kikuchi, H. Murakami, T. Nagao, M. Yoshida, T. Nio, Riko Oki (JAXA/EORC), M. Eisinger and T. Wehr (ESA/ESTEC), EarthCARE project members and Himawari-8 group members 14th July 2016 Contact: [email protected] EarthCARE Earth Observation Research Center 2 CPR Observation Instruments on EarthCARE MSI CPRCPR Cloud Profiling Radar BBR ATLIDATLID Atmospheric Lidar ATLID Copyright ESA MSIMSI Multi-Spectral Imager European Space Agency(ESA)/National Institute of Institutions Information and Communications Technology(NICT)/ BBRBBR Broadband Radiometer Japan Aerospace Exploration Agency(JAXA) Launch 2018 using Soyuz or Zenit (by ESA) Mission Duration 3-years Mass Approx. 2200kg Sun-synchronous sub-recurrent orbit Orbit Altitude: approx. 400km Mean Local Solar Time (Descending): 14:00 Synergetic Observation by 4 sensors Repeat Cycle 25 days Orbit Period 5552.7 seconds Semi Major Axis 6771.28 km Eccentricity 0.001283 3 Inclination 97.050° 285m Synergetic Observation by 4 Sensors on Global Scale •3‐dimensional structureGlobal simultaneous of aerosol observations and cloud of including vertical motion ‐ Cloud & aerosol profiles, 3D structure, with vertical motions •Radiation flux at top of‐ Radiation atmosphere flux at Top of Atmosphere (TOA) •Aerosol –cloud –radiation‐ Aerosol interactions‐Cloud‐Radiation interaction 4 ATLID ATLID Global Observation of Cloud and Atmospheric Lidar Aerosol Vertical Profile and Optical Properties 355nm High Spectral Resolution Lidar ATLID is a High Spectral Resolution Lidar (HSRL) developed by Instrument (HSRL) European Space Agency. - Rayleigh Channel Channel - Mie Channel(Cross-polarization) Different from the traditional Mie lidar, it has the capability to - Mie Channel (Co-polarization) separate Rayleigh scattering signal (originate from Sampling Horizontal : 285m / Vertical : 103m atmospheric molecules) and Mie scattering signal (originate Observation 3°Off Nadir(TBD) from aerosol and cloud) by high spectral resolution filter. -
Generation of GOES-16 True Color Imagery Without a Green Band
Confidential manuscript submitted to Earth and Space Science 1 Generation of GOES-16 True Color Imagery without a Green Band 2 M.K. Bah1, M. M. Gunshor1, T. J. Schmit2 3 1 Cooperative Institute for Meteorological Satellite Studies (CIMSS), 1225 West Dayton Street, 4 Madison, University of Wisconsin-Madison, Madison, Wisconsin, USA 5 2 NOAA/NESDIS Center for Satellite Applications and Research, Advanced Satellite Products 6 Branch (ASPB), Madison, Wisconsin, USA 7 8 Corresponding Author: Kaba Bah: ([email protected]) 9 Key Points: 10 • The Advanced Baseline Imager (ABI) is the latest generation Geostationary Operational 11 Environmental Satellite (GOES) imagers operated by the U.S. The ABI is improved in 12 many ways over preceding GOES imagers. 13 • There are a number of approaches to generating true color images; all approaches that use 14 the GOES-16 ABI need to first generate the visible “green” spectral band. 15 • Comparisons are shown between different methods for generating true color images from 16 the ABI observations and those from the Earth Polychromatic Imaging Camera (EPIC) on 17 Deep Space Climate Observatory (DSCOVR). 18 Confidential manuscript submitted to Earth and Space Science 19 Abstract 20 A number of approaches have been developed to generate true color images from the Advanced 21 Baseline Imager (ABI) on the Geostationary Operational Environmental Satellite (GOES)-16. 22 GOES-16 is the first of a series of four spacecraft with the ABI onboard. These approaches are 23 complicated since the ABI does not have a “green” (0.55 µm) spectral band. Despite this 24 limitation, representative true color images can be built. -
GLM Product Evaluation and Highlights of My Research at CICS
GLM Product Evaluation and Highlights of My Research at CICS Ryo Yoshida Satellite Program Division, Observation Department Japan Meteorological Agency (JMA) STAR Seminar, October 24, 2019 Overview of my research visit • “Japanese Government Short-Term Overseas Fellowship Program” sponsored by the National Personnel Authority of Japan • Period: Nov. 5, 2018 - Nov. 3, 2019 • NESDIS accepted me at CICS, based on the framework of the NESDIS-JMA high-level letter exchange on information exchange regarding GOES-R Series & Himawari-8/9 • Research topics: GLM & NOAA’s advanced efforts on satellites I deeply appreciate NESDIS’s giving me this great opportunity Japan Meteorological Agency 2 Contents 1. Overview of JMA and Himawari satellites 2. Highlights of my research at CICS 3. GLM product evaluation Japan Meteorological Agency 3 1. Overview of JMA and Himawari satellites Japan Meteorological Agency 4 What JMA is Japan’s national meteorological service, whose ultimate goals are Safety of transportation Prevention Development and mitigation and prosperity of natural of industry disasters International cooperation Japan Meteorological Agency prescribed by the Meteorological Service Act. 5 What JMA does • Weather observations • Weather forecasts and warnings • Aviation & marine weather services • Climate & global environment services • Monitoring seismic & volcanic activity & tsunamis Japan Meteorological Agency 6 JMA’s weather observation systems 16 radiosonde stations 33 wind profilers Upper air observations Geostationary satellites Observations -
The Chinese Navy: Expanding Capabilities, Evolving Roles
The Chinese Navy: Expanding Capabilities, Evolving Roles The Chinese Navy Expanding Capabilities, Evolving Roles Saunders, EDITED BY Yung, Swaine, PhILLIP C. SAUNderS, ChrISToPher YUNG, and Yang MIChAeL Swaine, ANd ANdreW NIeN-dzU YANG CeNTer For The STUdY oF ChINeSe MilitarY AffairS INSTITUTe For NATIoNAL STrATeGIC STUdIeS NatioNAL deFeNSe UNIverSITY COVER 4 SPINE 990-219 NDU CHINESE NAVY COVER.indd 3 COVER 1 11/29/11 12:35 PM The Chinese Navy: Expanding Capabilities, Evolving Roles 990-219 NDU CHINESE NAVY.indb 1 11/29/11 12:37 PM 990-219 NDU CHINESE NAVY.indb 2 11/29/11 12:37 PM The Chinese Navy: Expanding Capabilities, Evolving Roles Edited by Phillip C. Saunders, Christopher D. Yung, Michael Swaine, and Andrew Nien-Dzu Yang Published by National Defense University Press for the Center for the Study of Chinese Military Affairs Institute for National Strategic Studies Washington, D.C. 2011 990-219 NDU CHINESE NAVY.indb 3 11/29/11 12:37 PM Opinions, conclusions, and recommendations expressed or implied within are solely those of the contributors and do not necessarily represent the views of the U.S. Department of Defense or any other agency of the Federal Government. Cleared for public release; distribution unlimited. Chapter 5 was originally published as an article of the same title in Asian Security 5, no. 2 (2009), 144–169. Copyright © Taylor & Francis Group, LLC. Used by permission. Library of Congress Cataloging-in-Publication Data The Chinese Navy : expanding capabilities, evolving roles / edited by Phillip C. Saunders ... [et al.]. p. cm. Includes bibliographical references and index. -
Local Area Network and Data Network for the Advanced Earth Observing Satellite, ADEOS System Kohei Arai
Local area network and data network for the Advanced Earth Observing Satellite, ADEOS system Kohei Arai '* * Earth Observation Center, National Space Development Agency of Japan Abstract NASDA is planning the next generation of earth observation satellite, following MOS-1, MOS-1b, JER3-1, so called Advanced Earth Observing Satellite, ADEOS. ADEOS will carry Ocean Color and Temperature Scanner, OCTS, Advanced Visible and Near Infrared Radiometer, AVNIR and Anouncement Opportunity sensors, AO sensors and will require a quicl< data distribution. Not only direct broadcasting, but also data distribution through a network are usefull for the dissemination of such data. Therefore a data network of which users can access a quicklook image data base in a quasi real time basis is now considered. In order for the preoperational data handling, a local area network is taken into account for an ADEOS ground facility. The processed data are sent to the film recorder through the LAN together with histograms for the generation of look up table for the gamma correction. Key items of the processed data are also transmitted to the information retrieval subsystem for the registration. The aquired quick look data are transmitted to not only the film recorder but also quick look image data base and the information retreival subsystem in a real time basis. The aforementioned ideas and concept for the development of the ADEOS ground facility will be described in the proposed paper. Presented at the ISPRS held in Kyoto, Japan, in July 1988. 1 1 1 .. INTRODUCTION data starting with HOS-1 through ) the Polar respond or demands for earth observation from space, earth observation system consists of not only satellite but also ground facilities including data net\.>lorks for transmission of mission data, should matured and improved. -
7. Operations
7. Operations 7.1 Ground Operations The Exploration Systems Architecture Study (ESAS) team addressed the launch site integra- tion of the exploration systems. The team was fortunate to draw on expertise from members with historical and contemporary human space flight program experience including the Mercury, Gemini, Apollo, Skylab, Apollo Soyuz Test Project, Shuttle, and International Space Station (ISS) programs, as well as from members with ground operations experience reaching back to the Redstone, Jupiter, Pershing, and Titan launch vehicle programs. The team had a wealth of experience in both management and technical responsibilities and was able to draw on recent ground system concepts and other engineering products from the Orbital Space Plane (OSP) and Space Launch Initiative (SLI) programs, diverse X-vehicle projects, and leadership in NASA/Industry/Academia groups such as the Space Propulsion Synergy Team (SPST) and the Advanced Spaceport Technology Working Group (ASTWG). 7.1.1 Ground Operations Summary The physical and functional integration of the proposed exploration architecture elements will occur at the primary launch site at the NASA Kennedy Space Center (KSC). In order to support the ESAS recommendation of the use of a Shuttle-derived Cargo Launch Vehicle (CaLV) and a separate Crew Launch Vehicle (CLV) for lunar missions and the use of a CLV for ISS missions, KSC’s Launch Complex 39 facilities and ground equipment were selected for conversion. Ground-up replacement of the pads, assembly, refurbishment, and/or process- ing facilities was determined to be too costly and time-consuming to design, build, outfit, activate, and certify in a timely manner to support initial test flights leading to an operational CEV/CLV system by 2011. -
Aqua: an Earth-Observing Satellite Mission to Examine Water and Other Climate Variables Claire L
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, VOL. 41, NO. 2, FEBRUARY 2003 173 Aqua: An Earth-Observing Satellite Mission to Examine Water and Other Climate Variables Claire L. Parkinson Abstract—Aqua is a major satellite mission of the Earth Observing System (EOS), an international program centered at the U.S. National Aeronautics and Space Administration (NASA). The Aqua satellite carries six distinct earth-observing instruments to measure numerous aspects of earth’s atmosphere, land, oceans, biosphere, and cryosphere, with a concentration on water in the earth system. Launched on May 4, 2002, the satellite is in a sun-synchronous orbit at an altitude of 705 km, with a track that takes it north across the equator at 1:30 P.M. and south across the equator at 1:30 A.M. All of its earth-observing instruments are operating, and all have the ability to obtain global measurements within two days. The Aqua data will be archived and available to the research community through four Distributed Active Archive Centers (DAACs). Index Terms—Aqua, Earth Observing System (EOS), remote sensing, satellites, water cycle. I. INTRODUCTION AUNCHED IN THE early morning hours of May 4, 2002, L Aqua is a major satellite mission of the Earth Observing System (EOS), an international program for satellite observa- tions of earth, centered at the National Aeronautics and Space Administration (NASA) [1], [2]. Aqua is the second of the large satellite observatories of the EOS program, essentially a sister satellite to Terra [3], the first of the large EOS observatories, launched in December 1999. Following the phraseology of Y. -
The Progress of Fengyun Satellite Program and Its Applications
The Progress of Fengyun Satellite Program and Its Applications Qifeng LU National Satellite Meteorological Center, China Meteorological Administration (NSMC/CMA) United Nations/China Forum on Space Solutions: Realizing the Sustainable Development Goals Outline Fengyun Program Overview Current Missions and Services Latest Progress Future Programs National Satellite Meteorological Center ,CMA 1. Fengyun Program Overview Chinese FENGYUN Meteorological Satellites Polar System Geostationary System First Generation First FY-1 A, B, C, D Generation FY-2 A, B, C, D, E, F, G, H Second Second Generation Generation FY-3 A, B, C, D FY-4 A FY-3E, F, G planned until 2025 FY-4B, C, D planned until 2025 2019/5/3 United Nations/China Forum on Space Solutions: Realizing the Sustainable Development Goals 3 Launched Satellites Since Jan. 1969, China began to develop his own meteorological Satellite Leo Launch Data Geo Launch Data FY-1A Sept. 7, 1988 FY-2A Jun. 10, 1997 FY-1B Sept. 3, 1990 FY-2B Jun. 25, 2000 FY-1C May 10, 1999 FY-2C Oct. 18, 2004 FY-1D May 15, 2002 FY-2D Dec. 8, 2006 FY-3A May 27, 2008 FY-2E Dec. 23, 2008 FY-3B Nov. 5, 2010 FY-2F Jan. 13, 2012 FY-3C Sept. 23, 2013 FY-2G Dec. 31, 2014 FY-3D Nov. 15, 2017 FY-4A Dec. 11, 2016 FY-2H Jun. 5, 2018 Overall Development Strategy (4 stages): 1) 1970 - 1990: Conducting satellite research and development 2) 1990 - 2000: Implementing transition from R&D to operational 3) 2000 - 2010: Implementing transition from 1st generation to 2nd generation 4) 2010 - 2020: Pursuing accuracy and precision of satellite measurements 2019/5/3 United Nations/China Forum on Space Solutions: Realizing the Sustainable Development Goals 4 International User Community Global Data Regional Data Kangerlussu Svalbard aq Lannion MaspalomaAthens s FY-3C sounding data have been assimilated into CMA GRAPES, ECMWF, EUMETSAT Advanced UK NWP model operationally. -
Espinsights the Global Space Activity Monitor
ESPInsights The Global Space Activity Monitor Issue 1 January–April 2019 CONTENTS SPACE POLICY AND PROGRAMMES .................................................................................... 1 Focus .................................................................................................................... 1 Europe ................................................................................................................... 4 11TH European Space Policy Conference ......................................................................... 4 EU programmatic roadmap: towards a comprehensive Regulation of the European Space Programme 4 EDA GOVSATCOM GSC demo project ............................................................................. 5 Programme Advancements: Copernicus, Galileo, ExoMars ................................................... 5 European Space Agency: partnerships continue to flourish................................................... 6 Renewed support for European space SMEs and training ..................................................... 7 UK Space Agency leverages COMPASS project for international cooperation .............................. 7 France multiplies international cooperation .................................................................... 7 Italy’s PRISMA pride ................................................................................................ 8 Establishment of the Portuguese Space Agency: Data is King ................................................ 8 Belgium and Luxembourg -
Design Version 11.Pdf
2 3 © LIAMA 4 5 6 7 Chinasat 中星 Gaofen 高分 Date de lancement 1er mai Nom du satellite Chinasat 11 (« satellite chinois ») Date de lancement 26 Avril Lanceur LM3B/Ew Nom du satellite Gaofen 1 (« haute définition ») Lanceur Longue marche 2D Centre de lancement Xichang Centre de lancement Jiuquan Type de satellite et mission Satellite de télécommunications Orbite géostationnaire Type de satellite et mission Observation de la Terre Orbite basse héliosynchrone Masse 5100 kg Masse 1266 kg Durée de vie nominale Cette famille est possédée par la China Satellite Communication Corporation. 11 satellites ont été lancés : Chinasat 7 (18/08/96), 22 (26/01/00), 20 Durée de vie nominale 5 ans (15/11/03), 22A (13/09/06), 6B (05/07/07), 9 (09/06/08), 20A (25/11/10), 1A (19/09/11), 2A (26/05/12) et 12 (27/11/12). Détail sur la famille du satellite Premier du genre. D’autres satellites de télédétection devraient suivre jusqu’en 2020. Remarques Utilise la plateforme DFH-4 Remarques Il devrait permettre d’améliorer le rendement agricole, la gestion de risques climatiques, la protection de l’environnement, de même que le développement scientifique. Un aspect important du système est sa capacité d’acquérir des données en temps réel 24h/24 7jours/7. Le lancement a été effectué en même temps que celui d’un satellite équatorien. TUPAC KATARI Kuaizhou 快舟 Date de lancement 25 septembre Date de lancement 20 décembre Nom du satellite Kuaizhou-1 (« vaisseau rapide ») Nom du satellite Túpac Katari 1 Lanceur Kuaizhou Lanceur LM3B/E Centre de lancement Jiuquan Centre de lancement Xichang Masse 400 kg Type de satellite et mission Satellite de télécommunication Orbite géostationnaire Durée de vie nominale Non-connue Masse 5200 kg Type de satellite et mission Satellite de télédétection, Orbite basse héliosynchrone. -
The Annual Compendium of Commercial Space Transportation: 2017
Federal Aviation Administration The Annual Compendium of Commercial Space Transportation: 2017 January 2017 Annual Compendium of Commercial Space Transportation: 2017 i Contents About the FAA Office of Commercial Space Transportation The Federal Aviation Administration’s Office of Commercial Space Transportation (FAA AST) licenses and regulates U.S. commercial space launch and reentry activity, as well as the operation of non-federal launch and reentry sites, as authorized by Executive Order 12465 and Title 51 United States Code, Subtitle V, Chapter 509 (formerly the Commercial Space Launch Act). FAA AST’s mission is to ensure public health and safety and the safety of property while protecting the national security and foreign policy interests of the United States during commercial launch and reentry operations. In addition, FAA AST is directed to encourage, facilitate, and promote commercial space launches and reentries. Additional information concerning commercial space transportation can be found on FAA AST’s website: http://www.faa.gov/go/ast Cover art: Phil Smith, The Tauri Group (2017) Publication produced for FAA AST by The Tauri Group under contract. NOTICE Use of trade names or names of manufacturers in this document does not constitute an official endorsement of such products or manufacturers, either expressed or implied, by the Federal Aviation Administration. ii Annual Compendium of Commercial Space Transportation: 2017 GENERAL CONTENTS Executive Summary 1 Introduction 5 Launch Vehicles 9 Launch and Reentry Sites 21 Payloads 35 2016 Launch Events 39 2017 Annual Commercial Space Transportation Forecast 45 Space Transportation Law and Policy 83 Appendices 89 Orbital Launch Vehicle Fact Sheets 100 iii Contents DETAILED CONTENTS EXECUTIVE SUMMARY .