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ЦитатаIndian space firm to launch 4 foreign satellitesBengaluru, Mar 12 (IANS): State-run NewSpace India Ltd (NSIL), the commercial arm of the space department, bagged orders to launch four foreign satellites for earth observation from Sriharikota spaceport in Andhra Pradesh, a top official said on Friday."We have signed contracts with four foreign customers to launch four satellites in the earth's lower orbit using the PSLV and SSLV rockets of the Indian space agency ISRO (Indian Space Research Organisation) from its spaceport at Sriharikota," NSIL Chairman G. Narayanan told reporters here.The top official, however, did not disclose names of the customers or their location due to non-disclosure agreements with them."Of the four satellites, three will be launched using ISRO's polar satellite launch vehicle (PSLV) and one with its small satellite launch vehicle (SSLV). The spacecraft will be used for earth observation applications," said Narayanan, marking the company's two years of completion.The state-run NSIL was in the news recently for launching Brazil's earth observation satellite Amazonia-1 on February 28 from the spaceport on board ISRO's PSLV-C51 rocket along with 18 other satellites.Amazonia-1 is the optical earth observation satellite of National Institute for Space Research (INPE) in Brazil.In addition to these commercial launches, NSIL will launch two communication satellites for Indian customers offering direct-to-home (DTH) services and telecom operators offering broadband services using Ku-band transponders."The two communication satellites, to be launched by ISRO from its spaceport, will be owned and operated by us (NSIL) for customers on commercial terms for revenue-generating services," said Narayanan but declined to name the customers claiming confidentiality.Unlike the now defunct ISRO's commercial arm Antrix Corporation, which has ceased to function after its deal with Multimedia Deval fell through, the 2-year NSIL is a wholly owned state-run of the department of space as a central public sector enterprise.NSIL has been formed with Rs 10 crore paid-up capital and Rs 100-crore authorised capital. The space department has provided Rs 700 crore in the budget for fiscal 2021-22 for investing in infrastructure and capacity building to make satellites, rockets and launch them on commercial terms."We also plan to invest Rs 2,000 crore per annum over the next five years to ramp up infrastructure to build satellites and rockets, launch them and operate their services for domestic use," asserted Narayanan.The Rs 2,000-crore for investment per annum will be raised through a mix of equity and debt."We will also ramp up our headcount by hiring about 300 more people for stepping up operations and prepare to launch more satellites and rockets," said Narayanan on the occasion.Going forward, the fledgling company will launch heavy satellites for space applications and observation in the earth's geo-synchronous orbit by state-run and private firms."The company has generated Rs 300 crore revenue in the first year (2019-20) of operations, Rs 400-crore in the second year (2020-21) amid the Covid pandemic through launches and space-based services from ISRO's satellites," said NSIL Director for technology and strategy D. Radhakrishnan.During its first two years of operations, the company has launched 45 auxiliary customer satellites onboard ISRO's 4 PSLV missions, including Amazonia-1.
Цитата: undefinedNISAR satellite: Isro ready with a radar to observe Earth with Nasa The Nasa-Isro Synthetic Aperture Radar (NISAR) is a collaboration between the Indian and US space agencies for a dual-frequency L and S-band SAR for earth observationT E Narasimhan | Chennai Last Updated at March 10, 2021 00:50 IST Artist's concept of the Nasa-Isro SAR spacecraft NISAR-Nasa The Indian Space Research Organisation (Isro) has completed the development of a radar capable of producing extremely high-resolution images for a joint earth observation satellite mission with the National Aeronautics and Space Administration (Nasa).The Nasa-Isro Synthetic Aperture Radar (NISAR) is a collaboration between the Indian and US space agencies for a dual-frequency L and S-band SAR for earth observation. The S-Band SAR was shipped from the Space Applications Centre at Ahmedabad in Gujarat to the jet propulsion laboratory (JPL) at Pasadena in Los Angeles County, California, to be integrated with Nasa's L-Bank SAR payload.NISAR is estimated to be the world's most expensive Earth imaging satellite. The total cost of the project includes Isro's work share cost of about Rs 788 crore and about $808 million of JPL's.NISAR will be put into orbit in 2022 by Isro's Geosynchronous Satellite Launch Vehicle (GSLV) from the Satish Dhawan Space Centre at Sriharikota near Chennai.Indian scientists have spent nearly three decades working to tame the cryogenic technology, which was denied to Isro by the United States in the early 1990s. India's completely indigenous technology was successfully tested in 2017 and it placed the country among the global space superpowers. It also led India to be one of the top hubs for launches. Isro now launches satellites for various countries, including the US. NISAR will add one more feather in Isro's cap.The L&S band microwave data obtained from this satellite will be useful for a variety of application: To estimate agricultural biomass over the full duration of crop cycle; assessing soil moisture; monitoring of floods and oil slicks; coastal erosion; coastline changes; assessment of mangroves; surface deformation studies; ice sheet dynamics, among others.Nasa said NISAR will be the first satellite mission to use two different radar frequencies (L-band and S-band) to measure changes in our planet's surface less than a centimeter across. The partnership with India has been key to preserving as much science as possible.The radar penetrates clouds and darkness, enabling NISAR to collect data day and night in any weather.In September 2014, Nasa and Isro had signed a partnership to collaborate on and launch NISAR for a dual-frequency L and S-Band SAR for earth observation. NISAR would provide a means of disentangling highly spatial and temporally complex processes, ranging from ecosystem disturbances to ice sheet collapses and natural hazards including earthquakes, tsunamis, volcanoes and landslides.Nasa is providing the mission's L-band synthetic aperture radar, a high-rate communication subsystem for science data, GPS receivers, a solid-state recorder and payload data subsystem. Isro is providing the spacecraft bus, the S-band radar, the launch vehicle and associated launch services.Isro identified science and applications that were complementary to the primary mission objectives: Agricultural monitoring and characterisation, landslide studies, Himalayan glacier studies, soil moisture, coastal processes, coastal winds, and so on.A second radar frequency was added to the mission to better fulfill these science requirements.Since 1979, Isro has launched over 30 earth observation satellites. Both at central and state level, there are a large number of users who utilise space-based inputs for various purposes.Eye on the borderMeanwhile, on March 28, the Geosynchronous Satellite Launch Vehicle (GSLV-F10) will fire Geo Imaging Satellite, GISAT-1, from Sriharikota. Operating from a geostationary orbit, the 2,268 kg GISAT-1 will facilitate near real-time observation of the Indian sub-continent, under cloud free condition, at frequent intervals. It will provide near real-time images of India's borders and enable quick monitoring of natural disasters.This will be the first agile Earth observation satellite to be placed in a Geosynchronous Transfer Orbit by GSLV-F10.
ЦитатаIn April, India likely to have sky eye GISAT-1 in geostationary orbit Picture Chennai, March 26 The launch of India's first Geo Imaging Satellite (GISAT-1) to be placed in geostationary orbit will happen sometime during the first or second week of April, said K. Sivan, Secretary, Department of Space and Chairman, Indian Space Research Organisation (ISRO).Sivan said: "The GISAT-1 launch slated for March 28 got slightly delayed as some technical issues were observed in the satellite and the rocket. The issues observed issues have to be addressed even if they are minute ones." The GISAT-1 will be the country's first sky eye or earth observation satellite to be placed in geostationary orbit.Originally the GISAT-1 was slated for launch on March 5, 2020 by Geosynchronous Satellite Launch Vehicle-F10 (GSLV-F10).Hours before the start of the launch countdown, Indian space agency announced postponement of the mission owing to some technical glitch."The launch of GISAT-1 onboard GSLV-F10 (Geosynchronous Satellite Launch Vehicle-F10), planned for March 05, 2020, is postponed due to technical reasons. Revised launch date will be informed in due course," Indian Space Research Organisation (ISRO) had said on March 4."Subsequently the Covid-19 pandemic and the lockdown delayed the mission. The rocket had to be dismantled and cleaned up," Sivan added.The Indian space agency had earlier said GISAT-1 would provide real time image of large area of region of interest at frequent intervals. It will also enable quick monitoring of natural disasters, episodic events and any short term events.The 2,268 kg GISAT-1 will also provide spectral signatures for agriculture, forestry, mineralogy, disaster warning, cloud properties, snow, glaciers and oceanography. The satellite will have payload imaging sensors of six band multi-spectral visible and near infra-red with 42 metres resolution; 158 bands hyper-spectral visible and near infra-red with 318 metres resolution and 256 bands hyper-spectral short wave infra-red with 191 metres resolution.A four metre diameter Ogive shaped payload fairing (heat shield) has been used in the rocket for the first time, ISRO had said. IANS
ЦитатаApril 18 GSLV Mk.2 • GISAT 1
ЦитатаThe Indian Space Research Organisation has revised the launch schedule of geo imaging satellite GISAT-1 on board GSLV-F10 rocket following a "minor issue" with the spacecraft. The Bengaluru-headquartered space agency was earlier looking to launch the satellite on March 28, subject to weather conditions. "There is a minor issue with the satellite", ISRO sources told PTI. "As of now, we are planning to launch it on April 18".
Цитата: undefinedStatic test of first stage solid motor of India's mini rocket SSLV unsuccessfulPTI March 23, 2021 18:10 IST Bengaluru, Mar 23 (PTI) The static test of first stage solid motor (SS1) of ISRO's Small Satellite Launch Vehicle (SSLV) -- a new-generation compact rocket -- was not successful, according to sources in ISRO."Oscillation was noticed after 60 seconds into the test and nozzle was blown out near the bucket flange where it's attached with the motor at around 95 seconds", sources in the Bengaluru-headquartered space agency said. It was supposed to be tested for a total duration of about 110 seconds, officials said.The Indian Space Research Organisation had targeted to launch the first development flight of SSLV (D1) in April and may now in all probability have to revise this schedule."SSLV First stage is a new solid motor...new design. New motor has to be static tested on the ground to prove its performance. If it is successful, one more of the same configuration is tested again for acceptance.If both are successful, no more ground test is required and third motor of the same configuration will be accepted for flight", an ISRO official said.SS2 and SS3 motors, igniters and SS2 flex nozzle assembly, liquid propulsion-based VTM (Velocity Trimming Module) thrusters, propellant tanks and propulsion components had already been realised by ISRO and made ready for the maiden orbital test flight."We have to identify the root cause of the failure and modify the design", the official said on the unsuccessful testing at Sriharikota spaceport in Nellore district of Andhra Pradesh, about 100 kms north of Chennai, last week.Asked how long it may take for ISRO to complete the two static tests, the official said: "Maybe six months". Скрытый текст: SSLV is two metres in diameter and 34 meters in length with a lift-off weight of about 120 tons. ISRO has over the years realised five generations of launch vehicles -- SLV-3, ASLV, PSLV, GSLV and GSLV-MkIII.The space agency had earlier said the SSLV is going to be a new member of the launch vehicle family. It is intended to cater to emerging global small satellite launch service market."We are flying an earth observation satellite (EOS-02) on board the the first development flight of SSLV", ISRO Chairman and Secretary in the Department of Space, K Sivan said last month.SSLV has been designed to meet "launch on demand" requirements in a cost-effective manner for small satellites in a dedicated and ride share mode. It is a three-stage all solid vehicle with a capability to launch up to 500 kg satellite mass into 500 km low earth orbit (LEO) and 300 kg to Sun Synchronous Orbit (SSO).By comparison, PSLV -- the workhorse of ISRO -- can take up to 1,750 kg payload into SSO of 600 km altitude. With lower per kg launch cost, the mini launcher will have multiple satellite mounting options for nano, micro and small satellites.Sivan had earlier termed the SSLV an innovative vehicle, which can be assembled in just 72 hours. "Instead of 60 days (for building a PSLV), it (SSLV) will be assembled in three days; instead of 600 people (needed to build a PSLV), it (SSLV) will be done by six people", he had said.Chairman and Managing Director of ISRO's commercial arm, NewSpace India Limited (NSIL), G Narayanan, recently said: "the world over there is a big boom for small launch vehicles and that's why we are focusing on that".The US-based satellite ride share and mission management provider, Spaceflight Inc., has already purchased the first commercial launch of the SSLV (SSLV-D2) from NSIL for launch from the Satish Dhawan Space Centre in Sriharikota.Spaceflight had said at the time that it has already sold out the entire manifest (launch) for this secured SSLV-D2 launch, with spacecraft from an undisclosed U.S.-based satellite constellation customer. This undisclosed customer is reportedly Seattle-based BlackSky Global, which will launch four earth observation satellites on board SSLV-D2 in the ride share mission arranged Spaceflight."Were taking advantage of the growth in the small satellite market to deliver more launch options with the mini-launcher", a senior NSIL official said."The SSLV is the much-needed solution to fill the gap in the portfolio of small launch vehicles," Curt Blake, CEO and President of Spaceflight, had said."SSLV is designed for the launch-on-demand concept with very quick turn-around capability in between launches. SSLV is perfectly suited for launching multiple microsatellites at a time and supports multiple orbital drop-offs", Blake had said. PTI RS APR
Цитата"We are working on the problem and the launch should happen in the last week of this month, or may even get pushed to May," a scientist said.
ЦитатаIndia Set To Launch Its Most Advanced Earth Observation Satellite By 15 Mayby Swarajya Staff - Apr 15, 2021 07:32 AMIndia is set to launch its most advanced earth-observation satellite GISAT-1 into space next month.The 2,268 kg satellite will reportedly help in better monitoring of the sub-continent, including India's borders with China and Pakistan.
ЦитатаNEW DELHI: The launch of the country's most advanced earth observation satellite Gisat-1, which will allow India to better monitor the subcontinent, including its borders with Pakistan and China, is slated for launch before May 15.
ЦитатаISRO has a GSLV Mk II mission (GISAT-1 payload) tentatively scheduled for May, but the launch date has not been finalised yet. The space agency also has at least two PSLV missions tentatively lined up in 2021.
ЦитатаIndia's Geo Imaging Satellite GISAT-1 launch further delayedChennai, May 12 [/size]Uncertainty continues to dog the flight of India's first Geo Imaging Satellite (GISAT-1) this time due to coronavirus spread across the country, said an official of Indian space agency.The GISAT-1 will be the country's first sky eye or earth observation satellite to be placed in geostationary orbit.The satellite supposed to be put into orbit this month is all set to be delayed as employees at various centres of Indian Space Research Organisation (ISRO) including that of the rocket launch centre in Sriharikota were affected by Covid-19.Further with the demand for oxygen shooting up from the hospitals to save Covid-19 patients, the Indian space agency's rocket may not be getting oxygen to power itself for some time to come thereby delaying its space missions.The ISRO Propulsion Complex (IPRC) at Mahendragiri in Tamil Nadu is supplying oxygen to hospitals to save Covid-19 patients.The satellite and the rocket (Geosynchronous Satellite Launch Vehicle - F10 (GSLV-F10) are ready at the rocket launch centre in Sriharikota.Originally the GISAT-1 was slated for launch on March 5, 2020, but hours before the launch Indian Space Research Organisation (ISRO) announced postponement of the mission owing to some technical glitch.Soon after the Covid-19 pandemic and the lockdown delayed the mission. The rocket had to be dismantled and cleaned up. Subsequently, the GISAT-1 launch was slated for March 2021 but due to problems in the satellite's battery side, the flight got delayed.With the replacement of the battery the satellite and the rocket were being readied for their flight at Sriharikota when the second wave of Covid-19 swept in affecting many at the rocket launch centre.The Indian space agency had earlier said the 2,268 kg GISAT-1 would provide a real time image of a large area of region of interest at frequent intervals. It will also enable quick monitoring of natural disasters, episodic events and any short-term events.The satellite will have payload imaging sensors of six band multi-spectral visible and near infra-red with 42 metres resolution; 158 bands hyper-spectral visible and near infra-red with 318 metres resolution and 256 bands hyper-spectral short wave infra-red with 191 metres resolution.A four metre diameter Ogive shaped payload fairing (heat shield) has been used in the rocket for the first time, ISRO had said. IANS
ЦитатаПервым должен полететь индийский орбитальный аппарат "Шукраян-1" (в переводе -- "Корабль Венеры"). Для старта планируют воспользоваться одним из двух открывающихся полетных окон -- в декабре 2024 года или в середине 2026-го, в зависимости от того, когда завершится разработка. Основные цели миссии -- составить карту поверхности и недр Венеры, исследовать химический состав атмосферы и ее взаимодействие с солнечным ветром.