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Rapidly Attachable Fluid Transfer Interface
Rapidly Attachable Fluid Transfer Interface (RAFTI) is a standard interface developed by Orbit Fab Orbit Fab is an American startup based in Lafayette, Colorado, United States, that develops in-space refueling systems for satellites. History Orbit Fab was founded by CEO Daniel Faber and CDO Jeremy Schiel in 2018 to extend the lifetime of ... for transferring fluids, e.g., propellants, in space. It has been defined by a group of 30 companies. The interface specification has high and low pressure variants, both for operation between -40 °C and 120 °C. * Low pressure : for MMH, UDMH, Water, H2O2, Methanol, Kerosene, Green Monoprops, isopropyl alcohol, HFE, N2O. (fluids) * High pressure : for Nitrogen, Helium, Xenon, Krypton. (gases) History - timeline 2020: A first implementation is planned to be tested in space in 2021 as part of a prototype Propellant depot, fuel depot. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orbit Fab
Orbit Fab is an American startup based in Lafayette, Colorado, United States, that develops in-space refueling systems for satellites. History Orbit Fab was founded by CEO Daniel Faber and CDO Jeremy Schiel in 2018 to extend the lifetime of satellites. In 2019, the company completed testing of a fuel-transfer system aboard the International Space Station, demonstrating the ability to transfer fuel between spacecraft in microgravity. In the experiment, water was first transferred between two small satellites, and later the water was inserted into the water supply of the space station, making Orbit Fab the first private company to supply water to the ISS with its own proprietary equipment and processes. On June 24, 2021, Orbit Fab launched Tanker-001, a test device for its depot satellites. Tanker-001 weighs and was used to test the refueling system. The company plans to launch its refueling service to geostationary orbit in 2025. On May 26, 2023, the company announced that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Green Monoprops
Green is the color between cyan and yellow on the visible spectrum. It is evoked by light which has a dominant wavelength of roughly 495570 nm. In subtractive color systems, used in painting and color printing, it is created by a combination of yellow and cyan; in the RGB color model, used on television and computer screens, it is one of the additive primary colors, along with red and blue, which are mixed in different combinations to create all other colors. By far the largest contributor to green in nature is chlorophyll, the chemical by which plants photosynthesize and convert sunlight into chemical energy. Many creatures have adapted to their green environments by taking on a green hue themselves as camouflage. Several minerals have a green color, including the emerald, which is colored green by its chromium content. During post-classical and early modern Europe, green was the color commonly associated with wealth, merchants, bankers, and the gentry, while red w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Isopropyl Alcohol
Isopropyl alcohol (IUPAC name propan-2-ol and also called isopropanol or 2-propanol) is a colorless, flammable organic compound with a pungent alcoholic odor. As an isopropyl group linked to a hydroxyl group (chemical formula ) it is the simplest example of a secondary alcohol, where the alcohol carbon atom is attached to two other carbon atoms. It is a structural isomer of propan-1-ol and ethyl methyl ether. It is used in the manufacture of a wide variety of industrial and household chemicals and is a common ingredient in products such as antiseptics, disinfectants, hand sanitizer and detergents. Well over one million tonnes is produced worldwide annually. Properties Isopropyl alcohol is miscible in water, ethanol, and chloroform as, like these compounds, isopropyl is a polar molecule. It dissolves ethyl cellulose, polyvinyl butyral, many oils, alkaloids, and natural resins. Unlike ethanol or methanol, isopropyl alcohol is not miscible with salt solutions and can be separ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Propellant Depot
An orbital propellant depot is a cache of propellant that is placed in orbit around Earth or another body to allow spacecraft or the transfer stage of the spacecraft to be fueled in space. It is one of the types of space resource depots that have been proposed for enabling infrastructure-based space exploration. Many different depot concepts exist depending on the type of fuel to be supplied, location, or type of depot which may also include a propellant tanker that delivers a single load to a spacecraft at a specified orbital location and then departs. In-space fuel depots are not necessarily located near or at a space station. Potential users of in-orbit refueling and storage facilities include List of space agencies, space agencies, defense ministries and communications satellite or other private spaceflight, commercial companies. Satellite servicing depots would extend the lifetime of satellites that have nearly consumed all of their orbital maneuvering fuel and are likel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tetra 5
Lymecycline is a tetracycline broad-spectrum antibiotic. It is approximately 5,000 times more soluble than tetracycline base and is unique amongst tetracyclines in that it is absorbed by an active transport process across the intestinal wall, making use of the same fast and efficient mechanism by which carbohydrates are absorbed. The greater absorption of lymecycline allows for lower dosages to be used; the standard dose of 408 mg is equivalent to 300 mg tetracycline base and, in its action, to 500 mg tetracycline hydrochloride. Lymecycline, unlike tetracycline hydrochloride, is soluble at all physiological pH values. History Lymecycline was introduced by Farmitalia in 1963. Indications Lymecycline, like other tetracyclines, is used to treat a range of infections. Its better absorption profile makes it preferable to tetracycline for moderately severe acne and typically prescribed for 8 weeks at a time, but alternatives should be sought if no improvement occu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geostationary Orbit
A geostationary orbit, also referred to as a geosynchronous equatorial orbit''Geostationary orbit'' and ''Geosynchronous (equatorial) orbit'' are used somewhat interchangeably in sources. (GEO), is a circular geosynchronous orbit in altitude above Earth's equator ( in radius from Earth's center) and following the direction of Earth's rotation. An object in such an orbit has an orbital period equal to Earth's rotational period, one sidereal day, and so to ground observers it appears motionless, in a fixed position in the sky. The concept of a geostationary orbit was popularised by the science fiction writer Arthur C. Clarke in the 1940s as a way to revolutionise telecommunications, and the first satellite to be placed in this kind of orbit was launched in 1963. Communications satellites are often placed in a geostationary orbit so that Earth-based satellite antennas do not have to rotate to track them but can be pointed permanently at the position in the sky where the sat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robotic Refueling Mission
The Robotic Refueling Mission (RRM) is a NASA technology demonstration mission with equipment launches in both 2011 and 2013 to increase the technological maturity of outer space, in-space rocket propellant propellant transfer, transfer technology by testing a wide variety of potential propellant transfer hardware, of both new and existing satellite designs. The first phase of the mission was successfully completed in 2013. The second phase experiments continued in 2015. The third phase ~2018 suffered a cryocooler failure in 2019 and loss of methane. History Development The Robotic Refueling Mission was developed by the Satellite Servicing Capabilities Office at the Goddard Space Flight Center (GSFC). It was planned to demonstrate the technology and tools to propellant transfer, refuel satellites in orbit by robotic means. After the proof of concept, the long-term goal of NASA is to transfer the technology to the commercial sector. Technology demonstration Phase 1 RRM was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
