Автор Salo, 03.05.2009 11:09:34
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ЦитатаChennai: Indian Satellite - Satish Dhawan Satellite - (SD Sat) is set to carry the names of common people across the world to space in an effort to create awareness, generate curiosity and to get more people fascinated about space science. SD Sat is a 3U cube satellite named after the former Chairman and one of the founding fathers of the Indian space programme Professor Satish Dhawan. It is being launched into orbit by Indian Space Research Organisation (ISRO) onboard the PSLV-C51 (Polar Satellite Launch Vehicle) rocket.
ЦитатаIndia aims for reusable rockets, advanced propulsion in decadal spaceflight planby Andrew Jones -- January 4, 2021An Indian PSLV rocket lifts off from the the Satish Dhawan Space Center in January 2018. Credit: ISRO HELSINKI -- The Indian Space Research Organisation has outlined plans to develop reusable and heavy lift launchers, advanced propulsion and foster private space activities across the 2020s.ISRO Chairman K Sivan announced the broad range of goals in a New Year's message, underlining a major focus on research and development across the decade. Sivan noted that the "space sector is facing disruption due to the entry of many private players" which are targeting cost-effective space transportation systems and delivery of space-based services. "In line with global directions, we require to develop heavy lift launch vehicle, semi-cryogenic stage, reusable launch vehicle, advance propulsion, next generation avionics, advance materials, dynamic space applications and efficient integration of space based services as well as advanced space science missions," the message stated.Every ISRO center and unit was directed to develop a decadal plan and have been laid out in brief. Many will scale up capabilities within their area of focus, including ground stations, human spaceflight, optics and remote sensing, satellite platforms, broadband communications and human resource development. The Vikram Sarabhai Space Center is charged with carrying forward its "competence in launch vehicle development towards heavy lift capabilities, achieving partial and full reusability" and scramjet engine research. The Liquid Propulsion Systems Center will meanwhile develop semi-cryogenic propulsion capability to boost India's payload capability to geosynchronous transfer orbit to almost 5.5 metric tons.The LPSC will also develop methane-liquid oxygen propulsion as well as green and electric propulsion. The ISRO Propulsion Complex will support these goals by developing test facilities to support the qualification of these new systems.Sivan described ISRO as a "torch-bearer" of innovation for the country in his New Year's message. An overall space policy is also stated to be in the "final draft stages".K Sivan received a one-year extension to his ISRO chairmanship Dec. 30, meaning his tenure now runs to Jan. 14, 2022. 2021 India spaceflight plansA number of "diverse missions" are expected during the coming year. These include the first test flight of the Small Satellite Launch Vehicle (SSLV)--a four-stage rocket capable of lifting 500 kilograms to a 500-kilometer-altitude low Earth orbit--operational Geo-Imaging capability, and the Chandrayaan-3 moon mission. The Aditya-L1 solar mission and a first Indian Data Relay Satellite are also expected in 2021 or early 2022.A first, uncrewed flight for the Gaganyaan human spaceflight project is planned for late 2021. It was announced late last year that the first crewed launch had been delayed from December 2021 to no earlier than 2022, ostensibly due to the impacts of the COVID-19 pandemic. India conducted just two launches in 2020 due to the coronavirus outbreak.The Human Space Flight Centre (HSFC), inaugurated in January 2019, will meanwhile work on capabilities essential for the Gaganyaan programme, including the crew-rated launch vehicle, Orbital Module, rendezvous and docking, regenerative life support systems and space habitats.NewSpace developmentsSivan noted that 2020 was a year of change in the global space arena, brought about by the participation of private players in all aspects of the space sector."The situation is not different in our own country; for the first time in the history of this nation's space programme, we have a handful of entrepreneurs who have come forward to develop end-to-end launch vehicles and satellites with the intention of providing space-based services and thereby contribute to the space economy."India recently drafted the Spacecom Policy which is expected to open up and revolutionize India's space sector. Earth observation is noted as one of main areas for potential growth. The Indian National Space Promotion and Authorization Center (INSPACe) was announced in June 2020 to promote and foster Indian space actors."A precursor body for this Centre is already making all efforts to interface with 28 interested players in the country and processing applications, which would also put in place a seamless operating mechanism for INSPACe, as and when it becomes fully operational, which is expected to happen very shortly," Sivan said. The commissioning of a new launch site at Kulasekarapattinam, situated in the southernmost part of the Indian subcontinent, is also hoped to give a major boost to private space actors. The location of the site also allows launches to the south without requiring a dogleg maneuver to avoid flying over Sri Lanka, as with launches from the Satish Dhawan Space Center (SDSC).Meanwhile the PSLV-C51 launch from SDSC in early 2021 will include a satellite from startup Pixxel India. The mission follows the signing of a deal with NewSpace India Limited, the commercial arm of ISRO and a Government of India company under the Department of Space.
ЦитатаSpacetech startup Agnikul Cosmos builds Made-in-India 3D printed rocket engine, Agnilet By Shreya Ganguly|13th Jan 2021 Agnikul's semi cryogenic rocket engine, Agnilet, will be used in the second stage of its launch vehicle Agniban. Clap Icon1.5k claps +0 Clap Icon [Bookmark this story] Chennai-based spacetech startup Agnikul Cosmos developed its single piece, fully 3D printed rocket engine, Agnilet, and its cryogenic pump. The rocket engine will be burning kerosene in liquid oxygen. Speaking with YourStory, Srinath Ravichandran, Co-founder and CEO of Agnikul, explained that the semi-cryogenic rocket engine will be operating on liquid propellants. The 'Made-in-India' rocket engine is completely 3D printed and can be directly used in the rocket. Agnilet, Agnikul Cosmos Full 3D printed semi cryogenic rocket engine Agnilet. [Image Credit: Twitter] ALSO READ Chennai-based spacetech startup Agnikul partners with DoS under IN-SPACe entity to develop launch vehicles "The novelty here is that the entire rocket engine is 3D printed from top to bottom. What comes out of the 3D printer can directly be used in the rocket. There is no complexity in assembly or fabrication, and the turnaround time is less than four days," he explained. The co-founder explained that a rocket engine is a device that is capable of burning gases and releasing them at extremely high velocities. These gases released from a rocket's nozzle will exert an equal and opposite force on the rocket, pushing it to move in the other direction. Launched in 2017 by Srinath Ravichandran and Moin SPM, Agnikul Cosmos is involved in building India's private small satellite launch vehicle. Srinath revealed that this rocket engine will be used in the second stage of Agnikul's launch vehicle Agniban, which has been designed to carry up to 100 kg of payload to low earth orbits of up to 700 km with a plug-and-play engine configuration. "We have been testing engines since 2018 at smaller scales. So, subscale versions of this engine have been tested however a full-scale test will be done shortly," he adds. Last month, the IIT-Madras incubated Agnikul became the first startup to enter into a non-disclosure agreement with the Department of Space (DoS) under the newly established Indian National Space Promotion and Authorisation Centre (IN-SPACe) entity. Sign up for our exclusive newsletters. Subscribe to check out our popular newsletters. Dropdown It has been working with various ISRO centres and will get access to technical information and facilities necessary to go forward with their launch vehicle development. This development comes as a part of the new space reforms announced in 2020 which allows the private players to work with ISRO and further develop the Indian space sector. In September 2020, Hyderabad-based Skyroot Aerospace had revealed its fully 3D printed cryogenic rocket engine named 'Dhawan-1,' which will be used in the upper stage of its Vikram-II rocket for propulsion. Meanwhile, Bengaluru-based satellite imaging startup Pixxel is working with NewSpace India Limited (NSIL) to launch its satellite. Last month, the Indian Space Research Organisation (ISRO) had announced that Pixxel's first satellite Anand will be launched in its PSLV-C51 (polar satellite launch vehicle) mission this year.
Цитата: undefinedO satélite Amazônia-1, o primeiro satélite de observação da Terra completamente projetado, integrado, testado e operado pelo Brasil, será lançado pela missão PSLV-C51 da ISRO, no dia 28 de fevereiro, à 1h54 no Brasil - 10h24 no horário local da Índia.
Цитата: undefinedBENGALURU: India's first and only Space Public Sector Unit (SPSU), New Space India Limited (NSIL), has finally taken wings and will be launching a communication satellite dedicated to augment direct-to-home (DTH) services in the second half of this year using a foreign launch service.
Цитата: Salo от 21.01.2021 15:12:39 22 28 февраля - Amazônia 1 (SSR 1), Anand, SATISAT (SD Sat), Univsat - PSLV-DL (С51) - Шрихарикота - 07:54
ЦитатаOther payloads will be rideshared on this flight:- INS-2TD- 3x UnitySat- Satish Sat (Space Kidz India)- Anand- 14 more smallsats via NSIL public-private partnershipPayloads: 20
Цитата: undefinedPSLV-C51 is scheduled to launch Amazonia-1 and 20 Co-passenger satellites on February 28, 2021 from Satish Dhawan Space Centre SHARPSLV-C51, which is the 53rd mission of PSLV, will launch Amazonia-1 of Brazil as primary satellite and 20 Co-passenger satellites from Satish Dhawan Space Centre (SDSC) SHAR, Sriharikota. The launch is tentatively scheduled at 1023 Hrs IST on February 28, 2021 subject to weather conditions.PSLV-C51/Amazonia-1 is the first dedicated commercial mission of NewSpace India Limited (NSIL), a Government of India company under Department of Space. NSIL is undertaking this mission under a commercial arrangement with Spaceflight Inc. USA.Amazonia-1Amazonia-1 is the optical earth observation satellite of National Institute for Space Research (INPE). This satellite would further strengthen the existing structure by providing remote sensing data to users for monitoring deforestation in the Amazon region and analysis of diversified agriculture across the Brazilian territory.The 20 co-passenger satellites include one from ISRO (INS-2TD), four from IN-SPACe (three UNITYsats from consortium of three Indian academic institutes and One Satish Dhawan Sat from Space Kidz India) and 15 from NSIL.
ЦитатаIndia revises Gaganyaan human spaceflight plan, delays Chandrayaan-3by Andrew Jones -- February 23, 2021HELSINKI -- India has revised target dates for launches of its human spaceflight missions and the Chandrayaan-3 lunar landing following COVID-19-related delays.The Indian Space Research Organisation (ISRO) was targeting August 2022 for the launch to mark the 75th anniversary of Indian independence. However the first human spaceflight demonstration will now follow after a second uncrewed test flight now planned for 2022-23, chairman K Sivan has said.ISRO is targeting a first uncrewed test flight in December this year. The mission will involve human-rated Geosynchronous Satellite Launch Vehicle Mark III rocket with a modified upper stage compatible with a crew module and crew escape system, according to Times of India.The first uncrewed mission was initially planned to launch in December 2020, following the formal announcement of the Gaganyaan project in August 2018. India had late last year stated that the Gaganyaan project will be "slightly delayed" due to COVID-19. The first crewed mission will carry three astronauts with one backup. Four pilots selected for the program are participating in astronaut training in Russia. Скрытый текст: India is aiming to join Russia, the United States and China as the only countries to have achieved independent human spaceflight capabilities. The country is also at this early stage looking beyond low Earth orbit.India's Department of Space recently released the draft "Humans in Space Policy" into the public domain for comments and suggestions ahead of potential cabinet approval.The document states that the Humans in Space Policy "aims for sustained human presence in space as an instrument for development, innovation and foster collaborations in alignment with national interests."In pursuing the draft the Department of space would be expected to "define [a] long-term road map for sustained human presence in low earth orbit and undertaking exploration missions beyond low earth orbit."Necessary technologies for enabling sustained human presence in LEO and beyond as stated to include regenerative life support systems, rendezvous and docking systems, inflatable habitats and extravehicular activity suits. Utilizing international cooperation, developing ecosystems, encouraging entrepreneurship and enhancing public involvement are also noted as key tasks.Second lunar landing attempt delayedChandrayaan-3, India's third mission to the moon, is likely to slip to 2022, ISRO chairman K Sivan told Press Trust of India news agency.The mission will involve a lander and a small rover similar to Chandrayaan-2, but no orbiter. The 2019 Chandrayaan-2 mission successfully put an orbiter around the moon but the landing attempt ended in loss of communications despite a nominal descent down to an altitude of around two kilometers. Chandrayaan-3 is expected to target the same landing site, around 70.9 degrees south of the lunar equator. The Chandrayaan-2 orbiter will operate as a communications relay for the Chandrayaan-3 lander.If successful Chandrayaan-3 could make India the fourth country to successfully soft-land on the moon. K Sivan told press that the mission and its planned success will form the basis of ISRO interplanetary missions. India is also planning a Venus orbiter for launch in 2024.India is meanwhile preparing for the launch of the PSLV-C51 (the 53rd Polar Satellite Launch Vehicle mission) from Satish Dhawan Space Center, Sriharikota, at 11:53 p.m. Eastern, Feb. 27.The Amazonia-1 optical earth observation satellite of National Institute for Space Research (INPE) of Brazil is the primary payload. It will be joined by 18 smaller passenger satellites.The mission will be India's first launch of 2021, following a COVID-19-hit 2020.