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Columbus – External Payload Facility
The ''Columbus'' External Payload Facility (Columbus-EPF) is a component of the ''Columbus'' module on the International Space Station. It consists of two identical L-shaped consoles attached to the starboard cone of ''Columbus'' in the zenith (top) and nadir (bottom) positions, each supporting two platforms for external payloads or payload facilities. Four external payloads (payload facilities) can be operated at the same time. History Columbus-EPF was transported to the International Space Station (ISS) with the ''Columbus'' module on STS-122/1E in February 2008. Columbus-EPF payloads and payload facilities are transported to and from orbit using a carrier supplied by the ISS Program. The payloads and payload facilities are manoeuvred by the robotic manipulators of the ISS to their final operational locations on the Columbus-EPF. Each payload or payload facility has an open view to ram and to starboard, as well as one to either zenith or nadir. The view in the wake directi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
393009main Columbus-EPF2
__NOTOC__ Year 393 ( CCCXCIII) was a common year starting on Saturday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Augustus and Augustus (or, less frequently, year 1146 ''Ab urbe condita''). The denomination 393 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years. Events By place Roman Empire * January 23 – Emperor Theodosius I proclaims his son Honorius, age 8, co-ruler (''Augustus'') of the Western Roman Empire. * Theodosius I demands the destruction of pagan temples, holy sites, and ancient objects throughout the Roman Empire. * Theodosius I abolishes the Greek Olympic Games, ending a thousand years of festivals, as part of the general Christian policy to establish universal Christian worship in accordance with the doctrines set forth in the Nicene Creed (the next Olympic Games will not be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atomic Clock Ensemble In Space
''Atomic Clock Ensemble in Space'' (ACES) is a project led by the European Space Agency which will place ultra-stable atomic clocks on the International Space Station. Operation in the microgravity environment of the ISS will provide a stable and accurate time base for different areas of research, including general relativity and string theory tests, time and frequency metrology, and very long baseline interferometry. The payload actually contains two clocks: a caesium laser cooled atomic clock (PHARAO) developed by CNES, France for long-term stability and an active hydrogen maser (SHM) developed by Spectratime, Switzerland for short-term stability. The onboard frequency comparison between PHARAO and SHM will be a key element for the evaluation of the accuracy and the short/medium-term stability of the PHARAO clock. Further, it will allow to identify the optimal operating conditions for PHARAO and to select a compromise between frequency accuracy and stability. The mission wil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scientific Research On The ISS
The International Space Station is a platform for scientific research that requires one or more of the unusual conditions present in low Earth orbit (for example microgravity, ( cosmic) - radiation and extreme temperatures). The primary fields of research include human research, space medicine, life sciences, physical sciences, astronomy and meteorology. The 2005 NASA Authorization Act designated the American segment of the International Space Station as a national laboratory with the goal of increasing the use of the ISS by other federal agencies and the private sector. Research on the ISS improves knowledge about the effects of long-term space exposure on the human body. Subjects currently under study include muscle atrophy, bone loss, and fluid shift. The data will be used to determine whether space colonization and lengthy human spaceflight are feasible. As of 2006, data on bone loss and muscular atrophy suggest that there would be a significant risk of fractures and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
High Definition Earth Viewing Cameras
High Definition Earth Viewing (HDEV) cameras were a payload package delivered to the International Space Station on the SpaceX CRS-3 Mission, launched on April 18, 2014. The High-Definition Earth Viewing camera suite was carried aboard the Dragon spacecraft and is configured on a platform on the exterior of the European Space Agency's Columbus laboratory module. It was the first large unpressurized NASA experiment to be assigned for delivery to the International Space Station by SpaceX. The system is composed of four commercial high definition video cameras which were built to record video of the Earth from multiple angles by having them mounted on the International Space Station. The cameras streamed live video of Earth to be viewed online and on NASA TV on the show Earth Views. Previously-recorded video now plays in a continuous loop on public streaming sites. The HDEV system was developed by engineers at the Johnson Space Center in Houston, Texas. High school students also he ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Space Debris Sensor
Space is the boundless three-dimensional extent in which objects and events have relative position and direction. In classical physics, physical space is often conceived in three linear dimensions, although modern physicists usually consider it, with time, to be part of a boundless four-dimensional continuum known as spacetime. The concept of space is considered to be of fundamental importance to an understanding of the physical universe. However, disagreement continues between philosophers over whether it is itself an entity, a relationship between entities, or part of a conceptual framework. Debates concerning the nature, essence and the mode of existence of space date back to antiquity; namely, to treatises like the ''Timaeus'' of Plato, or Socrates in his reflections on what the Greeks called ''khôra'' (i.e. "space"), or in the ''Physics'' of Aristotle (Book IV, Delta) in the definition of ''topos'' (i.e. place), or in the later "geometrical conception of place" as "space ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SOLAR (ISS)
SOLAR was an European Space Agency, ESA science observatory on the Columbus (ISS module), Columbus Laboratory, which is part of the International Space Station. SOLAR was launched with Columbus on February 2008 aboard STS-122. It was externally mounted to Columbus with the European Technology Exposure Facility (EuTEF). SOLAR has three main space science instruments: SOVIMSOLSPECand SOL-ACES. Together they provide detailed measurements of the Sun's irradiance, spectral irradiance. The SOLAR platform and its instruments are controlled from thBelgian User Support and Operations Centre(B.USOC), located at thBelgian Institute for Space Aeronomy(BISA) in Uccle, Belgium. Instruments *SOVIM (''So''lar ''V''ariability and ''I''rradiance ''M''onitor) instrument is based on an earlier instrument (SOVA) which flew aboard the European Retrievable Carrier, launched on STS-46 in 1992. It is designed to measure solar radiation with wavelengths from 200 nanometers - 100 micrometers. This covers ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ISS-RapidScat
ISS-RapidScat was an instrument mounted to the International Space Station ''Columbus'' module that measured wind speeds. It was launched aboard SpaceX CRS-4 in September 2014 and operated until August 2016. ISS-RapidScat was a scatterometer designed to support weather forecasting by bouncing microwaves off the ocean's surface to measure wind speed via wind waves. It featured a rotating radar dish that operated at 13.4 GHz ( Ku band). It could collect data between 51.6 degrees north and south latitude, with a swath . The ISS-RapidScat program was initiated in response to the failure of the QuikSCAT satellite's antenna rotation mechanism in November 2009. While the spacecraft continued to function, it could only gather data in one direction, significantly limiting its data collection ability. ISS-RapidScat was built by the Jet Propulsion Laboratory from elements of QuikSCAT's SeaWinds instrument engineering model, originally used to validate that instrument's flight har ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
European Technology Exposure Facility
The European Technology Exposure Facility (EuTEF) was a payload mounted on the exterior of the European ''Columbus'' laboratory, one of the modules of the International Space Station. The facility, mounted onto the exterior of ''Columbus'', provided a platform for multiple types of experiments and materials to be exposed directly to the harsh space environment. The EuTEF is a programmable, multifunctional architecture that provides uniform interfaces for instruments. Nine instrument modules are accommodated and operated simultaneously. Each experiment is mounted on the ''Columbus'' External Payload Adapter (CEPA), which consists of an adapter plate, the Active Flight Releasable Attachment Mechanism (A-FRAM) and the connectors & harness. The experiments are mounted either directly onto the adapter plate or a support structure that elevates them for optimum exposure to the ram (direction of flight) and zenith directions. In total, the facility has a mass of . The first set of exp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Materials International Space Station Experiment
The Materials International Space Station Experiment (MISSE) is a series of experiments mounted externally on the International Space Station (ISS) that investigates the effects of long-term exposure of materials to the harsh space environment. The MISSE project evaluates the performance, stability, and long-term survivability of materials and components planned for use by NASA, commercial companies and the Department of Defense (DOD) on future low Earth orbit (LEO), synchronous orbit and interplanetary space missions. The Long Duration Exposure Facility (LDEF), which was retrieved in 1990 after spending 68 months in LEO, revealed that space environments are very hostile to many spacecraft materials and components. Atomic oxygen, which is the most prevalent atomic species encountered in low earth orbit, is highly reactive with plastics and some metals, causing severe erosion. There is also extreme ultraviolet radiation due to the lack of an atmospheric filter. This radiation det ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atmosphere-Space Interaction Monitor
Atmosphere-Space Interactions Monitor (ASIM) is a project led by the European Space Agency to place cameras and X-ray/ γ-ray detectors on the International Space Station to observe the upper atmosphere in order to study sprites, jets and elves and terrestrial gamma-ray flashes in connection with thunderstorms. It is hoped that measurements of these phenomena from space will contribute to the understanding of Earth's upper atmosphere. The ASIM components, originally planned to be completed in 2014, were launched on 2 April 2018 and mounted on the ''Columbus'' External Payload Facility on 13 April 2018. Danish tech company Terma A/S is running the technical part of the project for ESA and DTU Space (''National Space Institute'') from the Technical University of Denmark provides the scientific leadership of the project. Mission operations will be performed by the Belgian User Support and Operations Centre (B.USOC) in Uccle, Belgium. Some results from the measurements were publi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
EXPORT
An export in international trade is a good produced in one country that is sold into another country or a service provided in one country for a national or resident of another country. The seller of such goods or the service provider is an ''exporter''; the foreign buyer is an '' importer''. Services that figure in international trade include financial, accounting and other professional services, tourism, education as well as intellectual property rights. Exportation of goods often requires the involvement of customs authorities. Firms Many manufacturing firms begin their global expansion as exporters and only later switch to another mode for serving a foreign market. Barriers There are four main types of export barriers: motivational, informational, operational/resource-based, and knowledge. Trade barriers are laws, regulations, policy, or practices that protect domestically made products from foreign competition. While restrictive business practices sometimes hav ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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