The sun shines on India's Aditya

Discussion in 'Defence & Strategic Issues' started by Indx TechStyle, Nov 15, 2015.

  1. Indx TechStyle

    Indx TechStyle Perfaarmance Naarmal Senior Member

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    After a seven year long wait, Aditya, India’s first dedicated scientific mission to study the sun is likely to get a go-ahead from the Prime Minister’s Office (PMO) this week. The ambitious solar mission will study the sun’s outer mostblayers, the corona and the chromosphere, collect data about coronal mass ejection and more, which will also yield information for space weather prediction.
    The project costs approximately Rs 400 crores and is a joint venture between ISRO and physicists from Indian Institute of Astrophysics,
    Bengaluru; Inter University Centre for Astronomy and Astrophysics, Pune; Tata Institute of Fundamental Research, Mumbai, and other institutes.
    Though the project was conceptualised in 2008 itself, it has since morphed and
    grown and is now awaiting clearance with the government. It now aims to put a heavy satellite into what is called a halo orbit around the L1 point between the Sun
    and the Earth. This point is at a distance of about 1.5 million km from the earth. With the excitement about the Mars Orbiter Mission yet to settle down, this
    could be the next most complicated feat that ISRO has carried out till date.
    In a three-body problem such as this – with the earth and sun engaged in an elliptical orbit and a relatively very light, call it massless in comparison, satellite being placed in between – there are five so-called lagrangian points in space where the light, third body — in our case, the satellite — may be placed so that it can maintain its position with respect to the two others. One of these is the L1 point, which is about 1.5 million km from the earth.
    A halo orbit would be a circular orbit around the L1 point. The satellite will have to use its own power (spend energy) to remain in positio within in this orbit without losing its way. Such orbits have not been attempted too often. Studying the corona. Among the suite of instruments in the payload would be a solar coronagraph. “A combination of imaging and spectroscopy in multi-wavelength will enhance our understanding of the solar atmosphere. It will provide high time cadence sharp images of the solar chromosphere and the corona in the emission lines. These images will be used to study the highly dynamic nature of the solar corona including the small-scale coronal loops and large-scale Coronal Mass Ejections,” said Dipankar Banerjee, physicist from IIA, who is part of this project. The corona is the outermost layer of the Sun and the chromosphere is the second inner layer. Data such as this can help us understand the corona and solar wind, which is a spewing of charged particles into space, at speeds as high as 900 km/s and at about 1 million degrees Celsius temperature, affecting the environment there.
    Just like on earth, environment in space changes due to happenings in the sun, such as solar storms (flares). This is known as space weather. Dibyendu Nandi, Head of Center of Excellence in Space Sciences, IISER, Kolkata, describes it so:
    “Solar storms and space weather affect satellite operations. They may interfere with electronic circuitry of satellites and also, through enhanced drag (friction effects), impact satellite mission lifetimes. They also impact the positional accuracy of satellites and thus impact GPS navigational networks. Space weather also impacts telecommunications, satellite TV broadcasts which are dependent on satellite-based transmission.”
    Dr Nandi works in building models that can
    predict space weather. Hopeful about Aditya’s contribution to this, he remarks “The data from Aditya mission will be immensely helpful in discriminating between different models for the origin of solar storms and also for constraining how the storms evolve and what path they take through the interplanetary space from the Sun to the Earth. The forecasting models we are.building will therefore be complemented by the Aditya observations.”
    At the moment, there are models and
    calculations made by NASA which Indian
    scientists use to maintain their satellites. Now, there is a possibility of Indians developing their.own space weather prediction models.
    The Sun Shines on India's Aditya-The Hindu
     
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  3. Indx TechStyle

    Indx TechStyle Perfaarmance Naarmal Senior Member

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    sun_2620673d.jpg

    sorry for posting thread out of the ISRO news and updates, I found the topic hotter @pmaitra
    :p
     
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  4. Indx TechStyle

    Indx TechStyle Perfaarmance Naarmal Senior Member

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  5. BATTLE FIELD

    BATTLE FIELD Battle Captain

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    india should now focus on manned missions
    space walks, contribution to ISS.
     
  6. Kyubi

    Kyubi Regular Member

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    I wish ISRO's LVM3 will be the launch vehicle for this mission. It will be icing on the cake. the scientific relevance of this mission appears to be far more influencing than what was generally thought. What i personally thought that this mission is gonna be to study aspects of Sun's coronal mass ejections thats it , more like a mission to prove ISRO's growing capabilities !!

    But the scientific relevance, data is surely gonna be important and might influence the design of further satellites.. i hope this mission will be a huge success
     
  7. Kyubi

    Kyubi Regular Member

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    regarding ISS one could only guess how best can ISRO help it, but space walking yes, we also need to plan for the testing of RLVTD and later the original , human space program also should be mature enough to help in space walking !!!
     
  8. Indx TechStyle

    Indx TechStyle Perfaarmance Naarmal Senior Member

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    No, it will not go to sun but will test the devices to seen the earth from 800km orbit to earth.
    So, it is a platform for testing instruments for ISRO's future sun mission.
    After it, ISRO will probably send a small satellite in orbit of sun to test heat shield.
    After that, a proper mission to sun will occur.

    And here's the case of GSLV MkIII, it is now getting ready for Mangalyaan 2
    Mangalyaan 2- Wikipedia, the free encyclopedia
    by end of the decade.
    As we know that Mangalyaan was also just for checking
    "can we send a spacecraft to Mars?" and testing instruments.
    Same for Chandrayaan 1 which is platform of Chandrayaan 2.
    :)
     
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  9. SREEKAR

    SREEKAR Senior Member Senior Member

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    Islamic state of syria?o_O:nono:
     
  10. Indx TechStyle

    Indx TechStyle Perfaarmance Naarmal Senior Member

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    ISS is useless, it will fall in Pacific ocean just in 2018.
    Also, there is no research chamber suitable for ISRO there.
    :)
    As the GSLV Mk3 and UMLV may enter service in next 10 years, just after 2 or 3 human spaceflights India may be working on a modular space station program like China's Tiangong.
     
  11. BATTLE FIELD

    BATTLE FIELD Battle Captain

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    and whats the status of the astronaut program?
     
  12. BATTLE FIELD

    BATTLE FIELD Battle Captain

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    INDIAN SPACE STATION:biggrin2:
     
  13. Indx TechStyle

    Indx TechStyle Perfaarmance Naarmal Senior Member

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    ISS= International Space Station
    ISRO has been attempting for making good space suits from several years.
    Two are ready, one design and suit was created and ISRO's Bangalore facility and other new concepts are being run by private firms.
    ISRO is looking for setting up an Vyomanaut (
    like American Astronaut
    Russian Cosmonaut
    Chinese Taikonaut Indians Vyomanauts)
    training centre as soon as next budget is allocated by government.
    But human spaceflight will occur only when
    1. Third Rocket Launch Pad of SDSC will be completed for carrying out advanced missions (2020)
    https://en.m.wikipedia.org/wiki/Satish_Dhawan_Space_Centre_Third_Launch_Pad
    2. ISRO wants to have capability of a launch per month because China has 113 operational satellites (against our 36).
     
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  14. BATTLE FIELD

    BATTLE FIELD Battle Captain

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    i m not up to date with space news and programs
    but looks like a bright future is ahead for ISRO and INDIA.
     
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  15. sabari

    sabari Regular Member

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    India should focus in placing nuke war head in space can be targeted on Pakistan nuke base .which give second strike capablity
     
  16. Indx TechStyle

    Indx TechStyle Perfaarmance Naarmal Senior Member

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    we already have our nukes in water, land and air. pukies have only land based.
     
  17. sabari

    sabari Regular Member

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    Placing nuke in sky will cost much less then in submarine. And they can hit any part of Pakistan in minute. And paki doesn't have missile that can hit satilight .
     
  18. Indx TechStyle

    Indx TechStyle Perfaarmance Naarmal Senior Member

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    possible but do you think pukies deserve that.
    They can't touch our nukes even on land (their only platform), their missiles will have to pass from several layers of conventional and laser anti missile systems.
    Or simple solution, India can destroy navigation system of their missiles even before launch.
    They will fall in their own home.
    :biggrin2:
    But for China, it's a good idea. :D
     
  19. Indx TechStyle

    Indx TechStyle Perfaarmance Naarmal Senior Member

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    @sabari also they will make barely 100 small nukes with their 3 junk 1940s era reactors in 5 years.
    Whenever needed, India can stop its 26 advanced reactors for some hours and can make 300-400 large nukes. :biggrin2:
    Frankly saying, they don't produce even a nanaovolt electricity from their reactors. That is why they could make bombs.
     
  20. Bangalorean

    Bangalorean Stars and Ambassadors Stars and Ambassadors

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    Can you please substantiate your claim that placing a nuke in space will be less expensive than SLBMs?

    Actually, no nation has places a nuke in space till today. Ronald Reagan tried in the 1980s, under his "Star Wars" program, but it was so exorbitantly expensive that they had to shelve the program.
     
  21. Mad Indian

    Mad Indian Proud Bigot Veteran Member Senior Member

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    :lol: taking space nukes for dealing with pukes is like bringing a machine gun for a fist fight.
     
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