WELCOME TO INDIAN SPACE NEWS
Top 10 biggest PROJECT of ISRO
Number 10
Aryabhata 
Aryabhata
The Aryabhata was India's first satellite named after an Indian astronomer it marked a milestone in India's space program because it was completely designed in the country and launched from a Russian facility in 1975 it was built to gain experience in building and operating a satellite in space.
Launch
It was launched by India on 19 April 1975 from Kapustin Yar, a Russian rocket launch and development site in Astrakhan Oblast using a Kosmos-3M launch vehicle.
Number 9
Indian national satellite system
The Indian national satellite system, popularly known as INSAT is a series of multi-purpose geostationary satellites launched by ISRO to satisfy the telecommunication broadcasting meteorology and search and rescue operations. commissioned in 1983 INSAT is the largest domestic communication system in the asia-pacific region.
Satellites in service
Of the 24 satellites launched in the course of the INSAT program, 11 are still in operation.
Number 8
Polar satellite launch vehicle 
PSLV
It was developed in the 1990s and has become the Indian space missions most reliable workhorse. The PSLV carried out its first mission in 1993 but its first successful outing was the next year. For the next 25 years
it launched various satellites for historic missions such as the Chandrayaan and Mangalyaan. PSLV remains a favorite among various organizations as a launch service provider. The PSLV system has been used 39 times for launching payload into low-earth orbit of these 39 launches ISRO has suffered only one true failure, the maiden flight of the PSLV rocket in 1993.
Vehicle Specifications
Height: 44 m
Diameter: 2.8 m
Number of Stages: 4
Lift Off Mass: 320 tonnes (XL)
Variants : 3 (PSLV-G, PSLV - CA, PSLV - XL)
First Flight : September 20, 1993
TECHNICAL SPECIFICATIONS
Payload to SSPO: 1,750 kg
Payload to Sub GTO: 1,425 kg
Number 7
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| GSLV MK 3 |
Taking its baby steps toward realizing India's ambition to send humans into space, ISRO has successfully tested the atmospheric re-entry of a crew module after its heaviest launch vehicle GSLV MK-III blasted off from Sri Hari Kota.
The crew module can carry up to two to three astronauts withstood a heat of around 1600 degree Celsius. By 2020 India is expected to enter this special group of space cruising nations that are capable of taking people to space.
Vehicle Specifications
Number 6
Reusable launch vehicle TD 
Reusable launch vehicle TD
In May 2016 Israel successfully tested the reusable launch vehicle technology demonstrator.
The technology when developed completely would launch spacecraft including satellites into space and re-enter the Earth's atmosphere withstanding extreme pressure and heat conditions and land in an intended spot helping to cut costs on launch vehicle substantially.
Objectives of RLV-TD
- Hypersonic aero thermodynamic characterisation of wing body
- Evaluation of autonomous Navigation, Guidance and Control (NGC) schemes
- Integrated flight management
- Thermal Protection System Evaluation
Achievements
RLV-TD was successfully flight tested on May 23, 2016 from SDSC SHAR Sriharikota validating the critical technologies such as autonomous navigation, guidance & control, reusable thermal protection system and re-entry mission management.
Number 5
Launching 20 satellites in a single flight
In June 2016 the Israel launched 20 satellites in one mission a record for the space agency the PSLV carried a weight of 1288 kilogram with Indian Cartosat-2 series satellite taking up most of it. Apart from that the mission carried satellites from the US, Canada, Germany and Indonesia.
Number 4
IRNSS
Indian regional navigation satellite system IRNSS is an ingeniously built constellation of seven satellites which has been now given an operational name of NAVIC (Navigation with Indian constellation).
The satellites can provide accurate real-time positioning and timing services and extended service to regions 1,500 kilometres around India IRNSS satellite constellation consists of three satellites and GEO orbit and four satellites in GSO orbit that are 36,000 kilometers above Earth's surface.
Some applications of IRNSS are:
- Terrestrial, Aerial, and Marine Navigation
- Disaster Management
- Vehicle tracking and fleet management
- Integration with mobile phones
- Precise Timing
- Mapping and Geodetic data capture
- Terrestrial navigation aid for hikers and travellers
- Visual and voice navigation for drivers
Number 3
Chandrayaan 
CHANDRAYAAN
It is an Indian lunar exploration program. The first mission Chandrayaan 1 was launched in October 2008 onboard a PSLV-XL rocket and operated until August 2009. ISRO joined an elite list of just six space organizations to send an orbiter to the moon
the chandraiah and one mission carried moon impact probe payload that made the popular discovery of water on moon India's second lunar mission chandrayaan 2 to be launched in 2019.
Mission Remote Sensing, Planetary Science
Weight 1380 kg (Mass at lift off)
Onboard power 700 Watts
Stabilization 3 - axis stabilised using reaction wheel and attitude control thrusters, sun sensors, star sensors, fibre optic gyros and accelerometers for attitude determination.
Payloads
Scientific Payloads from India
a) Terrain Mapping Camera (TMC)
b) Hyper Spectral Imager (HySI)
c) Lunar Laser Ranging Instrument (LLRI)
d) High Energy X - ray Spectrometer (HEX)
e) Moon Impact Probe(MIP)
Scientific Payloads from abroad
f) Chandrayaan-I X-ray Spectrometer (CIXS)
g) Near Infrared Spectrometer (SIR - 2)
h) Sub keV Atom Reflecting Analyzer (SARA)
i) Miniature Synthetic Aperature Radar (Mini SAR)
j) Moon Mineralogy Mapper (M3)
k) Radiation Dose Monitor (RADOM)
Launch Date 22 October 2008
Launch Site SDSC, SHAR, Sriharikota
Launch Vehicle PSLV - C11
Orbit 100 km x 100 km: Lunar Orbit
Mission life 2 year
Number 2
Launching 104 satellites from a single rocket
ISRO creates history as PSLV launches 104 satellites in one go.
Russian space agency held a record of launching 37 satellites at once during its mission in June 2014.
The US space agency NASA has launched 29.
PSLV in its 39th flight launched the 714 kilograms Cartosat-2 series satellite for Earth Observation along with 103 co-passenger satellites together weighing about 1378 kilograms out of the total 104 satellites placed in orbit 101 satellites belongs to six foreign countries. They included 96 from the US and one each from Israel the UE the Netherlands Switzerland and Kazakhstan.
Number 1
Mangalyaan
India joined an exclusive Global club when ISRO's Mars orbiter mission dubbed as Mangalyaan successfully entered the Martian orbit on September 2014 in its maiden attempt.
MANGALYAAN
India became the first country to successfully complete maiden Mars mission and also the fourth country to successfully venture into Mars on a shoestring budget that was at least 10 times lower than a similar project by the US. The 450 crore rupees project revolved around the red planet to collect data on Mars atmosphere and mineral composition.
payloads
- Mars Colour Camera (MCC)
- Thermal Infrared Imaging Spectrometer (TIS)
- Methane Sensor for Mars (MSM)
- Mars Exospheric Neutral Composition Analyser (MENCA)
- Lyman Alpha Photometer (LAP)
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