RISAT-1 = PSLV-C19 (XL)- 26.04.12 04:17 ЛМВ

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декабрь-январь 2012 - RISAT-1, Venta-1, Pratham - PSLV-C19 (XL) - ПО

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http://timesofindia.indiatimes.com/india/PSLV-launch-successful-four-satellites-in-orbit/articleshow/10327098.cms

In December, PSLV-C19 will launch ISRO's first completely indigenous microwave remote sensing satellite (RISAT-1), while PSLV-C20 will launch an environment monitoring SARAL satellite, developed by India and France, in March.[/size]

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http://forum.nasaspaceflight.com/index.php?topic=1173.msg825737#msg825737

RISAT-1 (PSLV C19) launch will be in Jan 2012 (As per ISRO Chairman RadhaKrishnan during his visit to National Remote Sensing Centre, NRSC, at Shadnagar near Hyderabad). Published in the regional language news paper - Telugu (Refer)

~Prasad

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http://space.skyrocket.de/doc_sdat/risat-1.htm

RISAT 1[/size]


RISAT 1 [ISRO]

RISAT 1 (Radar Imaging Satellite 1) is the first satellite imaging mission of ISRO using an active C-band SAR (Synthetic Aperture Radar) imager. The objective of the RISAT mission is to use the all-weather as well as the day-and-night SAR observation capability in applications such as agriculture, forestry, soil moisture, geology, sea ice, coastal monitoring, object identification, and flood monitoring.

RISAT 1 is developed, manufactured and integrated by ISRO. The 3-axis stabilized spacecraft bus consists of a hexagonal prism shape build around a central cylinder. Most of the spacecraft subsystems and the payload are integrated in the prism structure and the central cylinder. The solar panels and some subsystems are mounted on the cube-shaped section of the spacecraft.

Nation:   India
Type / Application:   Earth Observing, radar
Operator:   ISRO
Contractors:   ISRO
Equipment:   C-Band SAR
Configuration:   
Propulsion:   ?
Power:   2 deployable solar arrays, batteries
Lifetime:   
Mass:   1850 kg
Orbit:   609 km

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http://www.dnaindia.com/india/report_launch-of-risat-1-to-boost-countrys-recce-capabilities_1615748

Launch of Risat-1 to boost country's recce capabilities[/size]
 Published: Tuesday, Nov 22, 2011, 8:00 IST
 By Hemanth CS | Place: Bangalore | Agency: DNA

The Radar Imaging Satellite-1 (RISAT-1), second in the series of India's radar imaging reconnaissance satellites, will be Indian Space Research Organisation's (Isro's) first launch next year.

RISAT-1, which will have the capability of imaging during day and night and in all-weather conditions including fog and haze, will be launched in January 2012 from the Satish Dhawan Space Centre (SDSC) in Sriharikota, sources in the space agency told DNA.

The satellite, which will be launched aboard Polar Satellite Launch Vehicle C-19 (PSLVC-19), will carry a C-band Synthetic Aperture Radar (SAR) and can be used for observational purposes for national security and environmental applications.
According to Isro, SAR is an active radar sensor, operating in the microwave region of electromagnetic spectrum that provides target parameters such as dielectric constant, surface roughness, geometry.

The SAR payload is based on an active phased array technology using Transmit/Receive (TR) modules, which would provide necessary electronic agility for achieving the multi-mode capability, providing spatial resolutions of 1 m to 50 m, and a swath of 10 to 240 km caters to different applications.

Isro scientists said RISAT-1 will follow RISAT-2 in the sequence of the country's radar imaging reconnaissance satellites.Although ISRO has denied that the RISAT-2 (launched in April 2009) falls under the spy satellite category, it is rumoured that the satellite is being used for surveillance on areas on the western borders of India.

The pre-launch activities of RISAT-2 in 2009 had aroused a lot of curiosity with media reports stating that it was accelerated following the 26/11 Mumbai terror attacks, with the help of the Israeli Aerospace Industries.

Apart from the RISAT satellites, Indian defence forces under the Integrated Space Command have been contemplating having dedicated satellites for quite some time now.

IAF chief NAK Browne, during his recent visit to Bangalore, had given top priority to having such dedicated satellites for all the three services under the Indian defence.[/size]

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http://ibnlive.in.com/news/isro-aims-at-45-to-50-launches/212988-60-123.html

In March 2012, the ISRO will launch a microwave remote sensing satellite which will be useful for the farm sector as well as disaster management. Cloud cover will not be a problem for this satellite, which gives it an edge over conventional satellites.[/size]

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http://www.dnaindia.com/scitech/report_risat-1-to-be-launched-anytime-from-march-15_1639171

RISAT-1 to be launched anytime from March 15[/size]
Published: Wednesday, Jan 18, 2012, 16:12 IST
Place: Bangalore | Agency: PTI

Indigenously developed remote sensing satellite RISAT-1, which can take images of the Earth in all weather conditions, would be launched by space agency ISRO anytime from March 15.

The 1850 kg RISAT-1, earlier slated for launch last year onboard PSLV-C19, would be a major milestone for the country and a boon for regions perennially under cloud cover.

"The launch of microwave remote sensing RISAT-1 is slated anytime from March 15," ISRO Chairman K Radhakrishnan told reporters on the sidelines of an event here organised by the Indian Institute of Science.

Besides use in the agriculture sector, the satellite's all weather capability to take images of the Earth could also be used to keep an eye on the country's borders round-the-clock and to help in anti-terrorist and anti-infiltration operations, he said.[/size]

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http://ibnlive.in.com/news/isro-focused-on-risat1-launch/226788-60-115.html

Karnataka | Posted on Feb 02, 2012 at 10:31am IST
ISRO focused on RISAT-1 launch[/size]
indianexpress Express News Service , The New Indian Express

BANGALORE: It's business hours as usual for the Indian Space Research Organisation (ISRO). The message amidst the mess, is to stay focused on immediate missions and not the madness orbiting them, thanks to the Devas-Antrix row.

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http://www.dnaindia.com/india/report_isro-row-not-affected-space-programmes-k-radhakrishnan_1649353

"As far as ISRO is concerned, I don't see any problems", Radhakrishnan said, adding, ISRO is now working on the launch of radar imaging satellite in the last week of March, as well as the ground-test of cryogenic engine.[/size]

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http://ibnlive.in.com/news/tn-woman-scientist-to-head-isro-mission/234021-60-118.html

Tamil Nadu | Updated Feb 28, 2012 at 09:55am IST
TN woman scientist to head ISRO mission[/size]  
S M Arun

COIMBATORE: Within a few weeks, Indian Space Research Organisation (ISRO) is slated to launch a microwave remote sensing satellite, RISAT-1 (Radar Imaging Satellite). After the space vehicle enters its designated orbit, you can expect ISRO chairman K Radhakrishnan to grin from ear to ear. Sharing the honours will be a little-known scientist, Valarmathi, who hails from Tamil Nadu. In fact, she is the project director of RISAT-1, the first woman from this State to head such a project.
Earlier, senior scientist R N Tyagi was the project director of RISAT.
A 1981-batch engineer from Government College of Technology in Coimbatore, Valarmathi took charge following the retirement of Tyagi. "I am a 1981-batch engineer from the Department of Electronics and Communication Engineering, Government College of Technology in Coimbatore," she told Express over phone from ISRO Satellite Centre in Bangalore. However, she declined to entertain further questions. Recently, Radhakrishnan had said that RISAT-1 could be launched anytime after March 15.
In fact, Valarmathi is the second woman scientist in India's space history to head such a mission.
T K Anuradha was the first woman scientist to head a space mission when GSAT-12 was launched on July 15, 2011.
Radar Imaging Satellite (RISAT-1) is a microwave remote sensing satellite that has a Synthetic Aperture Radar and weighs about 1,850 kg. It is slated for launch by Polar Satellite Launch Vehicle- C19 (XL) this year into a 536 km orbit, the Indian Space Research Organisation website said[/size].

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http://www.thehansindia.info/News/Article.asp?category=1&subCategory=2&ContentId=42721

Isro satellite launch plans may be delayed [/size]

Sullurpet (Nellore): In the wake of annulment of $300 million Antrix-Devas deal and subsequent controversy over the transparency of the functioning of Indian Space Research Organisation (Isro), the launch of several satellites is getting delayed.

Isro chairman Radhakrishnan has announced that the launch of the microwave remote sensing satellite RISAT-1, which was scheduled to go up into orbit with the help of Polar Satellite Launch Vehicle C-19 by March this year, is likely to be delayed, according to sources at SHAR.[/size]

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http://forum.nasaspaceflight.com/index.php?topic=1173.msg871763#msg871763

Some more bad news...

RISAT-1 mission is not scheduled for March-2012. It may slip further to April or May. Some sources have told that the vehicle is waiting for the satellite to arrive from ISAC center at Bangalore.

Also ISRO seems to be plagued with internal revolt by a section of scientists loyal to former chairman Mr. Madhavan Nair.[/size]

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http://forum.nasaspaceflight.com/index.php?topic=27238.msg871835#msg871835

AFAIU launch date will be reviewed on April 15
(source in Telugu)[/size]

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Venta-1 - это понятно, первый латвийский спутник

Pratham

'Pratham' has a Four-fold Mission Statement:

Enabling students and faculty to gain knowledge and experience in the field of Satellite and Space technology.

Empowering the Satellite Team with the skills to develop the Satellite through various phases of Design, Analysis, Fabrication and Testing until the Flight Model is made.

Launching the satellite into orbit and measuring Total Electron Count of the Ionosphere.

Involving students from other universities in our Satellite mission by building ground stations in their universities.

For the relevance of our satellite to the student community, we will be transmitting satellite data when the satellite passes over India so that any interested university with a small ground station will not only be able to detect the beacon signal from our satellite but will also be able to measure TEC above their ground station. This is proposed to spread awareness among the student community about this exciting field.

...........

http://www.aero.iitb.ac.in/pratham/mission.php

'Pratham', India's first do-it-yourself satellite


IIT Bombay Student Satellite Project

Integration of Flight Model going on!



IITBombayThe IIT Bombay Student Satellite Project is a landmark project taken up by IIT Bombay students. The objective of this project is to make IIT Bombay a respected centre for advancement in Satellite and Space Technology in the world. The project aims at launching at least 5 satellites within the next few years. These Satellites could be test-beds for new technology that is being developed in the institute and also a method for space qualification. Click here to view enlarged image

'Pratham' is the first satellite under this project. The plan is to build a fully functional microsatellite in less than three years which would then be launched by Indian Space Research Organisation (ISRO). This is entirely a student initiative with mentorship provided by ISRO scientists and IIT Bombay Faculty. The satellite will fit in a 30*30*30 cm cube and will weigh less than 15 kg. Click here to view the Mission Statement of 'Pratham'.



Weight: 10 kgs
Size: 260mm X 260mm X 260mm
Payload: Measuring TEC
Orbit: 10:30 polarsun-synchronous, 817km altitude
Downlink: 437.455MHz and 145.98MHz
Uplink at 437.455 MHz
Mission Life: 4 months

Exploded view of the satellite is shown below.

http://www.aero.iitb.ac.in/pratham/

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Постер (очень большая и долгозагружающаяся картинка): http://www.aero.iitb.ac.in/pratham/images/Pratham3.png

Лог почему-то не обновляется уже месяцев 8

Log Book
http://www.aero.iitb.ac.in/pratham/integrationlog.php

........................

The IITB Ground Station

   

 

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Не факт, что там вообще что-нибудь кроме Risat-1 будет.

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http://economictimes.indiatimes.com/news/politics/nation/indias-spy-satellite-risat-1-to-be-launched-in-april/articleshow/12247051.cms

13 Mar, 2012, 03.21PM IST, IANS
India's spy satellite Risat-1 to be launched in April[/size]

CHENNAI: A wholly Indian-built spy/surveillance satellite - Radar Imaging Satellite (Risat-1) - that can see through clouds and fog and has very high- resolution imaging is slated for launch in April, a senior official of the Indian space agency has said.

 An official of the Indian Space Research Organisation (ISRO) said thorough tests were being done on the Risat-1. "The Risat-1 is put to thermal vacuum test (a test to check the satellite's functioning in space environment). It is a complex microwave satellite being built for the first time in India.

 The satellite is expected to be launched in April," the senior official told IANS, not wishing to be named because of the organisational rules.

 In earlier satellites, one major component, the synthetic aperture radar (SAR) was imported, but in Risat-1 that has also been developed in India.

 He said Risat-1 is the first such satellite being built by India and is a bit complex compared to other remote sensing/earth observation satellites built and sent up earlier.

 According to ISRO officials, Risat-1 at 1,850 kg is the heaviest microwave satellite to be built by India.

 The satellite would be used for disaster prediction and agriculture forestry, and the high resolution pictures and microwave imaging could also be used for defence purposes.

 Risat-1 will have all weather, day and night imaging capability.

 The satellite's synthetic aperture radar can acquire data at C-band.

 ISRO Chairman K. Radhakrishnan had said last October that the space agency would launch two more satellites - Risat-1 and SARAL - before 2011-end. But that did not happen. He also said two more satellites - AstroSat and Aditya - will be launched in 2012-13.

Remote sensing satellites send back pictures and other data for use. India has the largest constellation of remote sensing satellites in the world providing imagery in a variety of spatial resolutions, from more than a metre ranging up to 500 metres, and is a major player in vending such data in the global market.

 In 2009, ISRO had launched 300 kg Risat-2 with an Israeli built SAR enabling earth observation on all weather, day and night conditions. The satellite can look through clouds and fog.

 With 11 remote sensing/earth observation satellites orbiting in the space, India is a world leader in the remote sensing data market. The 11 satellites are TES, Resourcesat 1, Cartosat 1, 2, 2A and 2B, IMS 1, Risat-2, Oceansat 2, Resourcesat-2, Megha-Tropiques.

 According to ISRO officials, the rocket that would sling Risat-1 will be the Polar Satellite Launch Vehicle's (PSLV) upgraded variant called PSLV-XL.

 The rocket would weigh around 320 tonnes at lift-off and will be the third such expendable rocket to be sent up by ISRO, and first time to launch a remote sensing satellite.

 ISRO had used the PSLV-XL variant (rocket with extended strap-on motors than what the base model has) for its moon mission (Chandrayaan-1) in 2008 and for launching its communication satellite GSAT-12 in 2011.

 The PSLV is a four-stage (engine) rocket powered by solid and liquid propellants alternatively. The first and third stages are fired by solid propellant and the second and fourth stages are fired by liquid propellant.

 ISRO has developed three PSLV variants. The first is the standard variant weighing around 290 tonnes with six strap-on motors measuring 11.3 metres with a fuel capacity of nine tonnes.

 The other two rocket variants are the PSLV Core Alone without the six strap-on motors and PSLV-XL with longer strap-on motors measuring 13.5 metres having a fuel capacity of 12 tonnes of solid fuel.[/size]

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http://www.bernama.com/bernama/v6/newsindex.php?id=652053

March 14, 2012 10:29 AM
India To Launch Home-built RISAT-1 Next Month[/size]

BANGALORE, March 14 (Bernama) -- India is expected to launch next month an indigenously designed and developed satellite that has the unique capability of imaging during day and night and in all weather conditions.
 "The Radar Imaging Satellite (RISAT-1) is likely to be launched in the second half of April from Sriharikota space port," an Indian Space Research Organisation (ISRO) official told Press Trust of India (PTI) here on Tuesday.
 The spacecraft, country's first microwave remote sensing satellite, was originally scheduled to be launched this month but the ISRO row, the fallout of the punitive action against four former space scientists for their role in the Antrix-Devas deal, delayed the preparations.
 Nearly two years ago, India launched a Radar Imaging Satellite (RISAT-2) with all weather capability and ability to penetrate through clouds but it was realised in association with Israel Aerospace Industries.
 Bangalore-headquartered ISRO said RISAT-2 has enhanced the country's capability in the management of disasters.
 RISAT-1, weighing around 1850 kg, is slated for launch by ISRO's workhorse Polar Satellite Launch Vehicle (PSLV-C19 (XL)) into a 536 km orbit.
 Besides use in the agriculture sector, RISAT-1 could also be used to keep round-the-clock vigil on the country's borders and help in anti-terrorist and anti-infiltration operations.
 The satellite carries a C-band Synthetic Aperture Radar (SAR) payload, operating in a multi-polarisation and multi-resolution mode to provide images with coarse, fine and high spatial resolutions respectively.


 -- BERNAMA[/size]

[Salo]

Не факт, что там вообще что-нибудь кроме Risat-1 будет.

http://www.tvnet.lv/tehnologijas/zinatnes/415251-satelitu_venta1_varetu_palaist_zemes_orbita_vasaras_vidu
Гугль перевод:

Спутник Venta-1 выйдет на околоземную орбиту в середине лета[/size]
 LETA
 16:37, 21.  Март 2012 года

 Первый латвийский спутник "Вента-1" может запустить на орбиту Земли в середине этого лета, с помощью русских ракет.  Сегодня, встречаясь с журналистами, посол России Александр Вешняков сообщил в ходе визита в Вентспилсе Вентспилсской городской думы Айварс Лембергс ("Для Латвии и Вентспилса").

 "Экономическое сотрудничество с Россией в Вентспилсе очень длинный и разнообразный.  В основном, это, конечно, связаны с транзитом.  [..] В России у нас есть сотрудничество в области науки, и мы видим большой потенциал для развития сотрудничества в целях развития.  Кроме того, в настоящее время переговоры ведутся на первый латвийский спутников на орбиту вокруг Земли, с помощью русских ракет-носителей.  Мы думаем, что сможем согласовать все условия, и теперь предсказывает, что это может быть в середине лета ", сообщил Лембергс.

 Вешняков посетил сегодня Вентспилсский Международный радиоастрономической центра.

 "Тогда я обратил свое внимание в России в июле прошлого года в Латвии подписали декларацию, которая направлена на обеспечение того, чтобы мы развиваем сотрудничество в области высоких технологий и науки.  [..] Если это небольшой, но важный спутник проект будет успешным, то, вероятно, будет другой, больше ", сказал Вешняков.  Как и Латвии с Россией могут быть и другие проекты сотрудничества в области науки, сказал посол.

 Вешняков приветствовал Вентспилсской высшей школы и способность местных органов власти по привлечению средств из фондов Европейского Союза для организации и модернизации советской армии удалось в Вентспилсский Международный центр radioastonomijas инфраструктуры.

 Как сообщалось в конце прошлого года индейцы спутников на полярную орбиту »(PSLV) ракеты-носителя начало, которое было запланировано на первый латвийский спутник" Вента-1 "и итальянский спутник" Maxvalier »запуск на орбиту, были приостановлены на неопределенный срок.  Поэтому ищем альтернативы запуску спутника, сообщили агентству LETA в преддверии спутника "Venta-1" производства координатор Дана Reizniece-Ozola.

Venta-1 "будет готов, и не хотите ждать, так интенсивно ищут альтернативу", сказал Reizniece-Ozola.  Наиболее реалистичным вариантом является русский РН "Космос".  Обсуждение также был проведен с индийцами.  Была также возможность запуска американского латвийский спутник РН "Falcon9", но плата за эту услугу будет слишком большой, заостренный Reizniece-Ozola.

 Стремясь запустить спутник на орбиту "Venta-1", важен не только для начальных затрат, но и на орбите.  Экваториальная орбита не действует, потому что это важно "Venta-1" пролетел над латвийским объяснил Reizniece-Ozola.

 В конце прошлого года планируются другие индейцы полярной орбите ракет-носителей предоставлена возможность начать работать спутник, который весит четыре килограмма, а "Venta-1" весом 7,5 килограмма, он не подходит.  "Мы решили не снижать" Venta-1 ", поскольку эти важные эксперименты -" подключи и работай "модуль и новый" LuxSpace "Автоматическая антенна системы идентификации", сказал Reizniece-Ozola.

 Спутник "Venta-1" для морских Автоматическая идентификационная система реализации спутниковых систем, разработанных немецкими космических технологий компании "OHB-System AG».  Проект предусматривает Бременского университета, но латвийская сторона Вентспилсской высшей школы и участвует в Вентспилсе технологический парк Высокий.

 Бременского университета профессор и компании "OHB Technology AG» ученый Индулис Калниньш, который до 1989 года жил и работал в Латвии, сообщил, что спутник "Вента-1" ключ загрузки Автоматическая система идентификации получателя.  Эта система позволяет в режиме реального времени информацию о движение судов по всему миру.

 Отдельный модуль для спутника "Venta-1" станет шведская компания «MicroTec AAT», которые будут опробованы на использование американских военных технологий, разработанных "подключи и-Play", сообщил Смит.

 Спутник "Venta-1" будет три наземных станций, которые получают сигналы.  Основная земная станция будет Вентспилсский Международный центр радиоастрономической Ирбене, замена станций будет расположено в Бремене, Германия.  Планируется, что в будущем будет третий земной станции в Италии, Южный Тироль.[/size]

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Два небольших спутника не влезли? Все настолько впритык?