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Landsat Collection 2
Landsat Collection 2 Landsat Collection 2 marks the second major reprocessing of the U.S. Geological Top of atmosphere Surface reflectance Surface temperature Survey (USGS) Landsat archive. In 2016, the USGS formally reorganized the Landsat archive into a tiered collection inventory structure in recognition of the need for consis- tent Landsat 1–8 sensor data and in anticipa- tion of future periodic reprocessing of the archive to reflect new sensor calibration and geolocation knowledge. Landsat Collections ensure that all Landsat Level-1 data are con- sistently calibrated and processed and retain traceability of data quality provenance. Bremerton Landsat Collection 2 introduces improvements that harness recent advance- ments in data processing, algorithm develop- ment, data access, and distribution capabili- N ties. Collection 2 includes Landsat Level-1 data for all sensors (including Landsat 9, Figure 1. Landsat 5 Collection 2 Level-1 top of atmosphere (TOA; left). Corresponding when launched) since 1972 and global Collection 2 Level-2 surface reflectance (SR; center) and surface temperature (ST [K]; right) Level-2 surface reflectance and surface images. temperature scene-based products for data acquired since 1982 starting with the Landsat Digital Elevation Models Thematic Mapper (TM) sensor era (fig. 1). The primary improvements of Collection 2 data include Collection 2 uses the 3-arc-second (90-meter) digital eleva- • rebaselining the Landsat 8 Operational Landsat Imager tion modeling sources listed and illustrated below. (OLI) Ground -
GAO-10-799 Geostationary Operational Environmental Satellites
United States Government Accountability Office Report to Congressional Committees GAO September 2010 GEOSTATIONARY OPERATIONAL ENVIRONMENTAL SATELLITES Improvements Needed in Continuity Planning and Involvement of Key Users GAO-10-799 September 2010 Accountability Integrity Reliability GEOSTATIONARY OPERATIONAL Highlights ENVIRONMENTAL SATELLITES Highlights of GAO-10-799, a report to Improvements Needed in Continuity Planning and congressional committees Involvement of Key Users Why GAO Did This Study What GAO Found The Department of Commerce’s NOAA has made progress on the GOES-R acquisition, but key instruments National Oceanic and Atmospheric have experienced challenges and important milestones have been delayed. Administration (NOAA), with the The GOES-R program awarded key contracts for its flight and ground aid of the National Aeronautics and projects, and these are in development. However, two instruments have Space Administration (NASA), is to experienced technical issues that led to contract cost increases, and procure the next generation of significant work remains on other development efforts. In addition, since geostationary operational environmental satellites, called 2006, the launch dates of the first two satellites in the series have been Geostationary Operational delayed by about 3 years. As a result, NOAA may not be able to meet its policy Environmental Satellite-R (GOES- of having a backup satellite in orbit at all times, which could lead to a gap in R) series. The GOES-R series is to coverage if GOES-14 or GOES-15 fails prematurely (see graphic). replace the current series of satellites, which will likely begin to Potential Gap in GOES Coverage reach the end of their useful lives in approximately 2015. -
A Systematic Review of Landsat Data for Change Detection Applications: 50 Years of Monitoring the Earth
remote sensing Review A Systematic Review of Landsat Data for Change Detection Applications: 50 Years of Monitoring the Earth MohammadAli Hemati 1 , Mahdi Hasanlou 1 , Masoud Mahdianpari 2,3,* and Fariba Mohammadimanesh 2 1 School of Surveying and Geospatial Engineering, College of Engineering, University of Tehran, Tehran 14174-66191, Iran; [email protected] (M.H.); [email protected] (M.H.) 2 C-CORE, 1 Morrissey Road, St. John’s, NL A1B 3X5, Canada; [email protected] 3 Department of Electrical and Computer Engineering, Memorial University of Newfoundland, St. John’s, NL A1C 5S7, Canada * Correspondence: [email protected] Abstract: With uninterrupted space-based data collection since 1972, Landsat plays a key role in systematic monitoring of the Earth’s surface, enabled by an extensive and free, radiometrically consistent, global archive of imagery. Governments and international organizations rely on Landsat time series for monitoring and deriving a systematic understanding of the dynamics of the Earth’s surface at a spatial scale relevant to management, scientific inquiry, and policy development. In this study, we identify trends in Landsat-informed change detection studies by surveying 50 years of published applications, processing, and change detection methods. Specifically, a representative database was created resulting in 490 relevant journal articles derived from the Web of Science and Scopus. From these articles, we provide a review of recent developments, opportunities, and trends in Landsat change detection studies. The impact of the Landsat free and open data policy in 2008 is evident in the literature as a turning point in the number and nature of change detection Citation: Hemati, M.; Hasanlou, M.; studies. -
NOAA TM GLERL-33. Categorization of Northern Green Bay Ice Cover
NOAA Technical Memorandum ERL GLERL-33 CATEGORIZATION OF NORTHERN GREEN BAY ICE COVER USING LANDSAT 1 DIGITAL DATA - A CASE STUDY George A. Leshkevich Great Lakes Environmental Research Laboratory Ann Arbor, Michigan January 1981 UNITED STATES NATIONAL OCEANIC AND Environmental Research DEPARTMENT OF COMMERCE AlMOSPHERlC ADMINISTRATION Laboratofks Philip M. Klutznick, Sacratary Richard A Frank, Administrator Joseph 0. Fletcher, Acting Director NOTICE The NOAA Environmental Research Laboratories do not approve, recommend, or endorse any proprietary product or proprietary material mentioned in this publication. No reference shall be made to the NOAA Environmental Research Laboratories, or to this publication furnished by the NOAA Environmental Research Laboratories, in any advertising or sales promotion which would indicate or imply that the NOAA Environmental Research Laboratories approve, recommend, or endorse any proprietary product or proprietary material men- tioned herein, or which has as its purpose an intent to cause directly or indirectly the advertized product to be used or purchased because of this NOAA Environmental Research Laboratories publication. ii TABLE OF CONTENTS Page Abstract 1. INTRODUCTION 2. DATA SOURCE AND DESCRIPTION OF STUDY AREA 2.1 Data Source 2.2 Description of Study Area 3. DATA ANALYSIS 3.1 Equipment 3.2 Approach 5 4. RESULTS 8 5. CONCLUSIONS AND RECOMMENDATIONS 15 6. ACKNOWLEDGEMENTS 17 7. REFERENCES 17 8. SELECTED BIBLIOGRAPHY 19 iii FIGURES Page 1. Area covered by LANDSAT 1 scene, February 13, 1975. 3 2. LANDSAT 1 false-color image, February 13, 1975, and trainin:: set locations (by group number). 4 3. Transformed variables (1 and 2) for snow covered land (group 13) plotted arouwl the group means for snow- covered ice (group 15). -
Information Summaries
TIROS 8 12/21/63 Delta-22 TIROS-H (A-53) 17B S National Aeronautics and TIROS 9 1/22/65 Delta-28 TIROS-I (A-54) 17A S Space Administration TIROS Operational 2TIROS 10 7/1/65 Delta-32 OT-1 17B S John F. Kennedy Space Center 2ESSA 1 2/3/66 Delta-36 OT-3 (TOS) 17A S Information Summaries 2 2 ESSA 2 2/28/66 Delta-37 OT-2 (TOS) 17B S 2ESSA 3 10/2/66 2Delta-41 TOS-A 1SLC-2E S PMS 031 (KSC) OSO (Orbiting Solar Observatories) Lunar and Planetary 2ESSA 4 1/26/67 2Delta-45 TOS-B 1SLC-2E S June 1999 OSO 1 3/7/62 Delta-8 OSO-A (S-16) 17A S 2ESSA 5 4/20/67 2Delta-48 TOS-C 1SLC-2E S OSO 2 2/3/65 Delta-29 OSO-B2 (S-17) 17B S Mission Launch Launch Payload Launch 2ESSA 6 11/10/67 2Delta-54 TOS-D 1SLC-2E S OSO 8/25/65 Delta-33 OSO-C 17B U Name Date Vehicle Code Pad Results 2ESSA 7 8/16/68 2Delta-58 TOS-E 1SLC-2E S OSO 3 3/8/67 Delta-46 OSO-E1 17A S 2ESSA 8 12/15/68 2Delta-62 TOS-F 1SLC-2E S OSO 4 10/18/67 Delta-53 OSO-D 17B S PIONEER (Lunar) 2ESSA 9 2/26/69 2Delta-67 TOS-G 17B S OSO 5 1/22/69 Delta-64 OSO-F 17B S Pioneer 1 10/11/58 Thor-Able-1 –– 17A U Major NASA 2 1 OSO 6/PAC 8/9/69 Delta-72 OSO-G/PAC 17A S Pioneer 2 11/8/58 Thor-Able-2 –– 17A U IMPROVED TIROS OPERATIONAL 2 1 OSO 7/TETR 3 9/29/71 Delta-85 OSO-H/TETR-D 17A S Pioneer 3 12/6/58 Juno II AM-11 –– 5 U 3ITOS 1/OSCAR 5 1/23/70 2Delta-76 1TIROS-M/OSCAR 1SLC-2W S 2 OSO 8 6/21/75 Delta-112 OSO-1 17B S Pioneer 4 3/3/59 Juno II AM-14 –– 5 S 3NOAA 1 12/11/70 2Delta-81 ITOS-A 1SLC-2W S Launches Pioneer 11/26/59 Atlas-Able-1 –– 14 U 3ITOS 10/21/71 2Delta-86 ITOS-B 1SLC-2E U OGO (Orbiting Geophysical -
Health of the U.S. Space Industrial Base and the Impact of Export Controls
PRE -DECISIONAL - NOT FOR RELEASE Briefing of the Working Group on the Health of the U.S. Space Industrial Base and the Impact of Export Controls February 2008 1 PRE -DECISIONAL - NOT FOR RELEASE Preamble • “In order to increase knowledge, discovery, economic prosperity, and to enhance the national security, the United States must have robust, effective, and efficient space capabilities. ” - U.S. National Space Policy (August 31, 2006). 2 PRE -DECISIONAL - NOT FOR RELEASE Statement of Task • Empanel an expert study group to [1] review previous and ongoing studies on export controls and the U.S. space industrial base and [2] assess the health of the U.S. space industrial base and determine if there is any adverse impact from export controls, particularly on the lower -tier contractors. • The expert study group will review the results of the economic survey of the U.S. space industrial base conducted by the Department of Commerce and analyzed by the Air Force Research Laboratory (AFRL). • Integrate the findings of the study group with the result of the AFRL / Department of Commerce survey to arrive at overall conclusions and recommendations regarding the impact of export controls on the U.S. space industrial base. • Prepare a report and briefing of these findings 3 PRE -DECISIONAL - NOT FOR RELEASE Working Group 4 PRE -DECISIONAL - NOT FOR RELEASE Methodology • Leveraged broad set of interviews and data from: – US government • Department of State, Department of Defense (OSD/Policy, OSD/AT&L, DTSA, STRATCOM, General Council), NRO, Department -
23 Mar 2018 2018 Asiasat Reports 2017 Annual Results
MEDIA RELEASE AsiaSat Reports 2017 Annual Results Hong Kong, 23 March 2018 - Asia Satellite Telecommunications Holdings Limited (‘AsiaSat’ – SEHK: 1135), Asia’s leading satellite operator, today announced financial results for the full- year ended 31 December 2017. Financial Highlights: 2017 revenue returned to an upward trend with an increase of 6% to HK$1,354 million from HK$1,272 million in 2016, supported by the lease of the full Ku-band payload of AsiaSat 8 during the year, on-going migration from Standard Definition to High Definition broadcasting and increased demand for data services 2017 profit attributable to owners was HK$397 million (2016: HK$430 million). On a like-for- like basis, after excluding a reversal of tax provision of HK$55 million in 2016, 2017 profit recorded an increase of 6%, HK$22 million compared to 2016 Proposed final dividend of HK$0.20 per share (2016: HK$0.20 per share). Together with the interim dividend of HK$0.18 per share (2016: Nil), the total dividend for the year 2017 is HK$0.38 per share (2016: HK$0.20 per share ) Operational Highlights: AsiaSat enters its 30th year in 2018 with an expanded and upgraded satellite fleet, including the new AsiaSat 9 which became fully operational in November 2017, bringing improved performance to customers and additional capacity to grow company business A lease for the full payload of AsiaSat 4 was secured following successful migration of customers from AsiaSat 4 to AsiaSat 9, the full revenue impact of which will be seen in 2018 Overall payload utilisation -
Realizing Resilient Tactical Networks with Maximum Government Control on High-Throughput Satellites
WHITE PAPER Realizing Resilient Tactical Networks with Maximum Government Control on High-throughput Satellites 1 Wide-beam connectivity is an essential aspect of military satellite communications and High Throughput Satellite (HTS) technology is proving to be ideally suited for many Government applications. While most satellite operators offer closed HTS architectures that are vendor-locked with very little control offered to users, the Intelsat Epic Next Generation (Epic) HTS architecture is enterprise- grade, open architecture and vendor-agnostic. Intelsat Epic allows Government and military access to bandwidth-efficient, higher data throughputs on a global-scale via a wide variety of user-chosen waveforms, modems and antennas. Intelsat is proud to present the next generation of satellite communications that features higher data throughput rates and security while offering cost-efficiencies across the board. Introduction High Throughput Satellites (HTS) have been the center of solutions. Interoperability between the various military attention for the past five years. It is important to note that branches, allied, and coalition forces continues to be a most of these systems have been purpose-built solutions to challenge. Finally, most military and government users require service homogeneous sets of users via closed architectures. operational coverage in remote and austere regions such Systems such as ViaSat Exede, Inmarsat Global Express, Hughes as deserts, jungles, and oceans—well outside of population Jupiter, and Eutelsat KA-SAT require new investments in centers for which these closed architectures are optimized. proprietary modem technologies and service architectures. These closed systems offer star-only connectivity and keep With the disconnects between these closed HTS solutions and quality of service control with the service provider, not the end the challenges faced by the Government, it is no wonder that users. -
Intelsat Satellites Supporting Approximately 50 Channels, Our Intelsatonesm Terrestrial Infrastructure and Other Production Capabilities; And
Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2012 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 000-50262 INTELSAT S.A. (Exact name of registrant as specified in its charter) Luxembourg 98-0346003 (State or Other Jurisdiction of (I.R.S. Employer Incorporation or Organization) Identification No.) 4, rue Albert Borschette Luxembourg L-1246 (Address of Principal Executive Offices) (Zip Code) +352 27-84-1600 (Registrant’s Telephone Number, Including Area Code) Securities registered pursuant to Section 12(b) of the Act: None Securities registered pursuant to Section 12(g) of the Act: None Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes ☐ No ☒ Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. Yes ☒ No ☐ Indicate by check mark whether the registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ☐ No ☒* Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files). -
Spacecraft System Failures and Anomalies Attributed to the Natural Space Environment
NASA Reference Publication 1390 - j Spacecraft System Failures and Anomalies Attributed to the Natural Space Environment K.L. Bedingfield, R.D. Leach, and M.B. Alexander, Editor August 1996 NASA Reference Publication 1390 Spacecraft System Failures and Anomalies Attributed to the Natural Space Environment K.L. Bedingfield Universities Space Research Association • Huntsville, Alabama R.D. Leach Computer Sciences Corporation • Huntsville, Alabama M.B. Alexander, Editor Marshall Space Flight Center • MSFC, Alabama National Aeronautics and Space Administration Marshall Space Flight Center ° MSFC, Alabama 35812 August 1996 PREFACE The effects of the natural space environment on spacecraft design, development, and operation are the topic of a series of NASA Reference Publications currently being developed by the Electromagnetics and Aerospace Environments Branch, Systems Analysis and Integration Laboratory, Marshall Space Flight Center. This primer provides an overview of seven major areas of the natural space environment including brief definitions, related programmatic issues, and effects on various spacecraft subsystems. The primary focus is to present more than 100 case histories of spacecraft failures and anomalies documented from 1974 through 1994 attributed to the natural space environment. A better understanding of the natural space environment and its effects will enable spacecraft designers and managers to more effectively minimize program risks and costs, optimize design quality, and achieve mission objectives. .o° 111 TABLE OF CONTENTS -
Landsat 4 with Previous Landsats
P saM~~~ilableunder NASA ~PnSOrsnlb in h, interest of early and wide dfi. %.ination of Earth Resources Surrey Program ini~rnatbnand wUN~hub for any use made t :. :d." 1 LANDSAT-4 MULTISPECTRAL SCANNER (MSS) SUBSYSTEM RADIOMETRIC CHARACTERIZATION (E83- 10226) LhbDShT-4 bULTISPECTEAL SCAPiYEB N83-L 1467 jbSS) SUbSYSTEH LAbIOPIETBXC CHABACTEkILATION (hAsA) 77 p dc A05/UP A31 CSCL l4R U ncla s RECtt v cD cc NASA ST1 FAClUM ACCESS DEPT. FEBRUARY 1983 ORIGINAL PAOF: IS OF POOR QUELrrY - NfEA - NIlWWl~bcs~ld GOOOARD SPACE FLIGHT CENTER *' swai GREENBELT, MARYLAHO I LANDSAT-4 MULTISPECTRAL SCANNER ( MSS) SUBSYSTEM RADIOMETRIC CHARACTERIZATiON Editors W. Alford and J. Barker NASAlGoddard Space Flight Center Greenbelt, Maryland B. P. Clark and R. Dasgupta Computer Sciences Corporation 8728 ColesviUe Road Sdver Spring, Maryland GODDARD SPACE FLIGHT CENTER Greenbelt. Maryland FOREWORD .The authcrs wish to acknow!edge the support received from both government and contract per- sonnel associated with the Landsa t-4 program. Constructive discussions and useful data have been provided by both W. Webb and J. Bala of the National Aeronautics and Space Administration (NASA). Outside contractor support was provided by L. Beuhler from Operations Research, In- corporated, and by J. Dietz and P. Mallerbe from the General Electric corporation. Many general references to the Landsat program iue available to the public. Relevant information and data from these references have been extracted for incorporation :-t, this document. It is hoped that this will broaden the circulation of critical information crur',zd in these documents. Of particular interest are four publications, two by the Hughes Aircraft Company and two by the General Electric Corporation. -
Spectrum and the Technological Transformation of the Satellite Industry Prepared by Strand Consulting on Behalf of the Satellite Industry Association1
Spectrum & the Technological Transformation of the Satellite Industry Spectrum and the Technological Transformation of the Satellite Industry Prepared by Strand Consulting on behalf of the Satellite Industry Association1 1 AT&T, a member of SIA, does not necessarily endorse all conclusions of this study. Page 1 of 75 Spectrum & the Technological Transformation of the Satellite Industry 1. Table of Contents 1. Table of Contents ................................................................................................ 1 2. Executive Summary ............................................................................................. 4 2.1. What the satellite industry does for the U.S. today ............................................... 4 2.2. What the satellite industry offers going forward ................................................... 4 2.3. Innovation in the satellite industry ........................................................................ 5 3. Introduction ......................................................................................................... 7 3.1. Overview .................................................................................................................. 7 3.2. Spectrum Basics ...................................................................................................... 8 3.3. Satellite Industry Segments .................................................................................... 9 3.3.1. Satellite Communications ..............................................................................