Showing posts with label ISRO. Show all posts
Showing posts with label ISRO. Show all posts

Wednesday, November 6, 2013

mars mission-pslv


Historic moment ,successful launch of PSLV (Mars Mission):
Some facts related to this mission.

Here are some key facts about Isro's Mars mission:

1. This is the first time the national space agency is aspiring to send a mission to study a celestial body outside Earth's sphere of influence.

2. India's Mars Orbiter is expected to reach the red planet's orbit by September 2014 and look for the presence of methane, an indicator of life there.

3. Isro has put in place an extensive network of stations worldwide to track the Mars Orbiter Mission after launch from the first launch pad here at 2.38pm.

4. Unlike other PSLV missions, PSLV C25 will take more than 40 minutes to inject the Mars Orbiter into Earth's orbit as it has a long coasting phase (1,700 seconds) for the launch and has to achieve an "argument" of perigee of 276.4 degrees.

5. The vehicle trajectory will be tracked by monitoring stations at the Space Centre here, Indian Deep Station Network at Byalulu near Bangalore and Down Range Station at Port Blair in India and also from Biak in Indonesia and Brunei.

6. Two sea-borne terminals equipped with a 4.6 metre antenna and a 1.8 metre antenna on board Shipping Corporation of India's SCI Nalanda and SCI Yamuna (some 2500 km between them) in South Pacific Ocean will track the vehicle as it injects the Mars Orbiter mission into Earth's orbit.

7. Once injected into orbit by the launch vehicle, the spacecraft trajectory post separation would be tracked from NASA's Jet Propulsion Laboratory facilities at Goldstone (U.S), Madrid (Spain) and Canberra (Australia).

8. The Mars Orbiter carries five scientific instruments to study the red planet - Lyman Alpha Photometer (LAP), Methane Sensor for Mars (MSM), Mars Exospheric Neutral Composition Analyser (MENCA), Mars Colour Camera (MCC) and Thermal Infrared Imaging Spectrometer (TIS).

9. While LAP and MSM would help in atmospheric studies,MENCA would focus on studying particle environment.MCC and TIS would contribute to studying the surface imaging of the red planet.

10. After having received 33 ideas for instruments to be flown to Mars, Isro shortlisted nine, of which the Advisory Committee of Space Sciences headed by Prof U R Rao finalised five instruments as only these were mature enough for the flight.

11. The 1,337 kg Mars Orbiter with 852 kg fuel and 15 kg of scientific instruments is expected to reach Mars' orbit on September 14, 2014.

12. Though there have been 51 missions to the red planet by some countries, only 21 have been considered successful, according to Nasa.

Wednesday, August 14, 2013

ISRO’s Successful Mission


Topic: ISRO’s Successful Mission
Q. PSLV-C17?
Ans. PSLV-C 17 was the eighteenth successive successful flight of PSLV which has once again proved its versatility and reliability GSAT-12 Communication satellite with a mass of 1410 kg at lift-off, has 12 Extended C-band transponders and has been successfully placed in Geosynchronous Orbit.
Q. GSAT-12 and its importance?
Ans. GSAT-12 is a communication satellite with a mass of 1410 kg at lift-off, has 12 Extended C-band transponders and has been successfully placed in Geosynchronous Orbit by PSLV-C17. 
It will enhance space based applications in the area of telemedicine, tele-education and disaster management support.
Q. What is GSAT-8 and what is its role in GAGAN?
Ans. India’s advanced communication satellite, GSAT-8 - weighing about 3100 kg at lift-off, was successfully launched into the Geosynchronous Transfer Orbit (GTO) on May 21, 2011 by the Ariane-V launch vehicle from Kourou, French INSAT system and carries 24 high power transponders in Ku-band and a two-channel GPS Aided Geo Augmented Navigation (GAGAN) payload operating in L1 and L5 bands. The transponders will augment the capacity in the INSAT system while the GAGAN payload provides the Satellite Based Augmentation System (SBAS), through which the accuracy of the positioning information obtained from the GPS Satellite is improved by a network of ground based receivers and made available to the users in the country through the geostationary satellites.
Q. How many satellites were launched by PSLV-C16 and what are the details of these?
Ans. In its 17th consecutive successful flight, India’s Polar Satellite Launch Vehicle (PSLV-C16) injected three Satellites viz. RESOURCESAT-2, YOUTHSAT and X-SAT into the Polar Sun synchronous orbits on April 20, 2011 RESOURCESAT-2 built by ISRO - the primary satellite is an advanced remote sensing satellite facilitating a host of applications and services in the area of agricultural monitoring, natural resources management, disaster management support as well as infrastructure planning and will ensure continuity of remote sensing data currently being provided by RESOURCESAT-1 launched in 2003. YOUTHSAT is a joint Indo-Russian satellite for stellar and atmospheric studies. X-SAT is a micro-satellite for imaging applications built by Nanyang Technological University (NTU), Singapore.
Q. What is HYLAS (Highly Adaptable Satellite)?
Ans. The HYLAS jointly built by ISRO/Antrix and EADS/Astrium of Europe for Avanti communications of U.K. was launched successfully on November 27, 2010 by the European Ariane-5 V198 launch vehicle, and was placed in the geostationary orbit.
Q. What is the recent achievement of ISRO in Building of Super Computer
Ans. ISRO has built a supercomputer, which is to be India’s fastest supercomputer in terms of theoretical peak performance of 220 Teraflops (220 Trillion Floating Point Operations per second).
Q. What is the name of the fastest supercomputer of India which was recently built by ISRO?
Ans. The new Graphic Processing Unit (GPU) based supercomputer named “SAGA-220” (Supercomputer for Aerospace with GPU Architecture-220 Teraflops) is being used by space scientists for solving complex aerospace problems.
Topic: ISRO’s Successful Mission
Q. PSLV-C17?
Ans. PSLV-C 17 was the eighteenth successive successful flight of PSLV which has once again proved its versatility and reliability GSAT-12 Communication satellite with a mass of 1410 kg at lift-off, has 12 Extended C-band transponders and has been successfully placed in Geosynchronous Orbit.
Q. GSAT-12 and its importance?
Ans. GSAT-12 is a communication satellite with a mass of 1410 kg at lift-off, has 12 Extended C-band transponders and has been successfully placed in Geosynchronous Orbit by PSLV-C17. 
It will enhance space based applications in the area of telemedicine, tele-education and disaster management support.
Q. What is GSAT-8 and what is its role in GAGAN?
Ans. India’s advanced communication satellite, GSAT-8 - weighing about 3100 kg at lift-off, was successfully launched into the Geosynchronous Transfer Orbit (GTO) on May 21, 2011 by the Ariane-V launch vehicle from Kourou, French INSAT system and carries 24 high power transponders in Ku-band and a two-channel GPS Aided Geo Augmented Navigation (GAGAN) payload operating in L1 and L5 bands. The transponders will augment the capacity in the INSAT system while the GAGAN payload provides the Satellite Based Augmentation System (SBAS), through which the accuracy of the positioning information obtained from the GPS Satellite is improved by a network of ground based receivers and made available to the users in the country through the geostationary satellites.
Q. How many satellites were launched by PSLV-C16 and what are the details of these?
Ans. In its 17th consecutive successful flight, India’s Polar Satellite Launch Vehicle (PSLV-C16) injected three Satellites viz. RESOURCESAT-2, YOUTHSAT and X-SAT into the Polar Sun synchronous orbits on April 20, 2011 RESOURCESAT-2 built by ISRO - the primary satellite is an advanced remote sensing satellite facilitating a host of applications and services in the area of agricultural monitoring, natural resources management, disaster management support as well as infrastructure planning and will ensure continuity of remote sensing data currently being provided by RESOURCESAT-1 launched in 2003. YOUTHSAT is a joint Indo-Russian satellite for stellar and atmospheric studies. X-SAT is a micro-satellite for imaging applications built by Nanyang Technological University (NTU), Singapore.
Q. What is HYLAS (Highly Adaptable Satellite)?
Ans. The HYLAS jointly built by ISRO/Antrix and EADS/Astrium of Europe for Avanti communications of U.K. was launched successfully on November 27, 2010 by the European Ariane-5 V198 launch vehicle, and was placed in the geostationary orbit.
Q. What is the recent achievement of ISRO in Building of Super Computer
Ans. ISRO has built a supercomputer, which is to be India’s fastest supercomputer in terms of theoretical peak performance of 220 Teraflops (220 Trillion Floating Point Operations per second).
Q. What is the name of the fastest supercomputer of India which was recently built by ISRO?
Ans. The new Graphic Processing Unit (GPU) based supercomputer named “SAGA-220” (Supercomputer for Aerospace with GPU Architecture-220 Teraflops) is being used by space scientists for solving complex aerospace problems.