Author Topic: Aditya-L1 Solar Observation Mission, PSLV (XL) 2019  (Read 27257 times)

Offline sanman

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ISRO has upgraded its planned Aditya-1 solar observation mission from a single payload to five payloads:

http://www.newindianexpress.com/nation/Ambitious-ISRO-Hitching-Its-Wagon-to-the-Sun/2013/12/23/article1960544.ece

The 5 mission instruments are now:

- variable emission coronagraph
- UV imaging telescope
- high energy X-ray imager
- wind particle detector
- soft x-ray spectrometer
« Last Edit: 02/05/2016 04:25 PM by input~2 »

Offline Star One

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Re: Aditya Solar Observation Mission
« Reply #1 on: 12/26/2013 01:47 PM »
Can this be launched on PSLV or is it only achievable by the GSLV?

Offline ss1_3

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Re: Aditya Solar Observation Mission
« Reply #2 on: 12/26/2013 03:19 PM »
Another noteworthy feature would be the positioning of s/c. Earlier, it was planned to be launched into a polar orbit. But now they plan to put it at Earth-Sun L1 point - place where no Indian s/c has gone before. 8)

Offline vyoma

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Re: Aditya Solar Observation Mission
« Reply #3 on: 12/27/2013 04:58 AM »
Can this be launched on PSLV or is it only achievable by the GSLV?

I think there's no official word yet on launch vehicle. But, I guess it can be achieved with PSLV in a way similar to MOM. They can insert Aditya-1 to a LEO elliptical parking orbit and then perform perigee burns to insert into L1 halo orbit.

Similar approach will be used in ESA LISA Pathfinder:
Quote
The launch of LISA Pathfinder is planned for 2014. The spacecraft will be launched by a VEGA rocket from Kourou, French Guiana, and will be placed into a slightly elliptical parking orbit. From there, it will use its own propulsion module to reach its final operational orbit, a 500 000 by 800 000 km halo orbit around the first Sun-Earth Lagrange point, at 1.5 million km from Earth. LISA Pathfinder’s initial operational phase will last 12 months and the mission could be extended to one year.
http://www.esa.int/Our_Activities/Operations/LISA_Pathfinder

Offline vyoma

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Re: Aditya Solar Observation Mission
« Reply #4 on: 12/27/2013 05:00 AM »
Aditya-1 (old configuration) payload info: http://www.iiap.res.in/meet/sol2011/sol_ppt/RPrasad.pdf

No info yet on new configuration and new payloads.

Offline antriksh

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Re: Aditya Solar Observation Mission
« Reply #5 on: 12/27/2013 12:03 PM »
Aditya L1 multi-wavelength Space observatory

Proposed payloads:

1. Solar Plasma waves study from L1 point

http://evelc.iiap.res.in/aditya-nlst/pdf/nlst-aditya-vipin.pdf

2. Plasma Analyser for Aditya (PAPA  ;D)
http://evelc.iiap.res.in/aditya-nlst/pdf/nlst-aditya-satheesh.pdf

3. Solar Low Energy Xray Spectrometer

http://evelc.iiap.res.in/aditya-nlst/pdf/nlst-aditya-ramadevi.pdf

4. High Energy L1 Orbiting X-ray Spectrometer
http://evelc.iiap.res.in/aditya-nlst/pdf/nlst-aditya-manju.pdf

5. Enhanced Visible Emission Line Coronagraph (E-VELC)
http://evelc.iiap.res.in/aditya-nlst/pdf/nlst-aditya-dipankar.pdf
Nasadiya Sukta:
Srishti se pehle sat nahin thaa, asat bhi nahin | Antariksh bhi nahin, aakaash bhi nahin thaa | chhipaa thaa kyaa, kahaan, kisne dhakaa thaa | us pal to agam, atal jal bhi kahaan thaa ||

From: 1st verse of 129th Hymn of the 10th Book of Rig Veda

Offline vyoma

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Re: Aditya Solar Observation Mission
« Reply #6 on: 12/27/2013 01:21 PM »
Cool! Thanks Antriksh. Any word on launch and orbital mechanics?

Offline vyoma

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Re: Aditya Solar Observation Mission
« Reply #7 on: 02/28/2014 03:20 PM »
Quote
"The mission would be around the Earth. A few equipment are being planned for that. We hope for the launch between 2017 and 2020," ISRO chairman said.

http://www.deccanherald.com/content/388995/isros-mission-probe-sun-2020.html

Offline ss1_3

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Re: Aditya Solar Observation Mission
« Reply #8 on: 02/28/2014 04:27 PM »
Quote
"The mission would be around the Earth. A few equipment are being planned for that. We hope for the launch between 2017 and 2020," ISRO chairman said.

http://www.deccanherald.com/content/388995/isros-mission-probe-sun-2020.html

So it won't be L1 then?  ???

Offline antriksh

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Re: Aditya Solar Observation Mission
« Reply #9 on: 08/05/2014 02:33 PM »
Update:

A Satellite placed in the halo orbit around the L1 Lagrangian point of the Sun-Earth system has the major advantage of continuously viewing the Sun without any occultation/ eclipses. Based on the technical studies, it was found that PSLV-XL developed at ISRO has the capability to launch a satellite which can be placed at a halo orbit around L1 point. Such a mission would also provide enhanced payload capability and hence can accommodate many other complementary payloads. In order to explore the science interest for such a mission, an Announcement of Opportunity (AO) soliciting proposals from Indian scientific community was released during March 2013. Eighteen proposals were received. The proposals were reviewed for their science potential and feasibility of realisation. Among the eighteen proposals, the following six proposals have been short-listed which could form an optimum suite of experiments for such a mission.

1) Visible Emission Line Coronagraph (VELC), IIA, Bengaluru
2) Solar Ultraviolet Imaging Telescope (SUIT), IUCAA, Pune
3) Plasma Analyser Package for Aditya (PAPA), SPL/VSSC, Trivandrum
4) Aditya Solar wind Particle Experiment (ASPEX), PRL, Ahmedabad
5) Solar Low Energy X-ray Spectrometer (SoLEXS), SAG/ISAC, Bengaluru
6) High Energy L1 Orbiting X-ray Spectrometer (HEL1OS), SAG/ISAC, Bengaluru


The main experiment will continue to be a coronagraph with improved capabilities. The main optics for this experiment remains the same. The optical design of the coronagraph is completed and its Preliminary Design Review (PDR) is also completed. The optical detector for the coronagraph has been finalised and its PDR is also completed. The design review of any additional elements will be conducted in due course. The project proposal is to be submitted for further approvals for an upgradation to place this mission in a halo orbit around L1 Lagrangian point.
Nasadiya Sukta:
Srishti se pehle sat nahin thaa, asat bhi nahin | Antariksh bhi nahin, aakaash bhi nahin thaa | chhipaa thaa kyaa, kahaan, kisne dhakaa thaa | us pal to agam, atal jal bhi kahaan thaa ||

From: 1st verse of 129th Hymn of the 10th Book of Rig Veda

Offline antriksh

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Re: Aditya Solar Observation Mission
« Reply #10 on: 09/26/2014 02:05 PM »
Nasadiya Sukta:
Srishti se pehle sat nahin thaa, asat bhi nahin | Antariksh bhi nahin, aakaash bhi nahin thaa | chhipaa thaa kyaa, kahaan, kisne dhakaa thaa | us pal to agam, atal jal bhi kahaan thaa ||

From: 1st verse of 129th Hymn of the 10th Book of Rig Veda

Offline GClark

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Re: Aditya Solar Observation Mission
« Reply #11 on: 10/04/2014 07:42 AM »
Will this be an I-1K bus or something else?

Offline vyoma

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Re: Aditya Solar Observation Mission
« Reply #12 on: 10/04/2014 08:51 AM »
Found some links related to few payloads:
1) Visible Emission Line Coronagraph (VELC): http://www.iiap.res.in/files/AR_February-11-2014.pdf, http://eprints.iisc.ernet.in/36040/1/Proposed.pdf

2) Solar Ultraviolet Imaging Telescope (SUIT): ??

3) Plasma Analyser Package for Aditya (PAPA): http://mx1.vssc.gov.in/index.php?option=com_content&view=article&id=303&Itemid=790&lang=en

4) Aditya Solar wind Particle Experiment (ASPEX): http://www.iiserpune.ac.in/~bhasbapat/bapat_files/SWATIS_ADCOS_2014May_a.pdf

5) Solar Low Energy X-ray Spectrometer (SoLEXS): http://arxiv.org/ftp/arxiv/papers/1111/1111.5820.pdf

6) High Energy L1 Orbiting X-ray Spectrometer (HEL1OS): ??

Offline vyoma

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Re: Aditya Solar Observation Mission
« Reply #13 on: 11/16/2014 04:12 PM »
So it won't be L1 then?  ???


As mentioned in antriksh's post above, it will be an L1 mission.
Quote
The Indian Space Research Organisation (ISRO) will launch Aditya in 2017, its first satellite aimed at studying the sun. Interacting with students of a private school at Balussery in Calicut, ISRO Chairman Dr K Radhakrishnan said the satellite will be placed 1.5 million km away from the earth, at the Langrangian point of the Sun-Earth system.

http://www.onenewspage.com/n/India/750q0tcz5/ISRO-to-launch-39-Aditya-39.htm
http://newsonair.nic.in/news.asp?cat=National&id=NN6130
« Last Edit: 11/17/2014 03:46 AM by vyoma »

Offline abhishek

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Re: Aditya Solar Observation Mission
« Reply #14 on: 11/17/2014 03:24 AM »
Finally the air has been cleared.So it will be a L1 mission instead of LEO mission.

10, 9, ignition sequence start 6, 5, 4, 3, 2, 1, 0, all engines running Lift off, we have a lift off, lift off

Offline antriksh

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Re: Aditya Solar Observation Mission, PSLV (XL) 2017
« Reply #15 on: 08/21/2015 03:22 PM »
Nasadiya Sukta:
Srishti se pehle sat nahin thaa, asat bhi nahin | Antariksh bhi nahin, aakaash bhi nahin thaa | chhipaa thaa kyaa, kahaan, kisne dhakaa thaa | us pal to agam, atal jal bhi kahaan thaa ||

From: 1st verse of 129th Hymn of the 10th Book of Rig Veda

Offline Ohsin

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Re: Aditya Solar Observation Mission, PSLV (XL) 2017
« Reply #16 on: 11/15/2015 02:31 AM »
Quote
The sun shines on India's Aditya

    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.
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    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.
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    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.
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    “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.”
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    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.

http://www.thehindu.com/opinion/the-sun-shines-on-indias-aditya/article7878625.ece
"Well, three cheers to Sharma, but our real baby is INSAT."

Offline vyoma

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Re: Aditya Solar Observation Mission, PSLV (XL) 2017
« Reply #17 on: 01/26/2016 05:25 AM »
http://www.isro.gov.in/aditya-l1-first-indian-mission-to-study-sun

Quote
Aditya - L1 First Indian mission to study the Sun

The Aditya-1 mission was conceived as a 400kg class satellite carrying one payload, the Visible Emission Line Coronagraph (VELC) and was planned to launch in a 800 km low earth orbit.  A Satellite placed in the halo orbit around the Lagrangian point 1 (L1) of the Sun-Earth system has the major advantage of continuously viewing the Sun without any occultation/ eclipses.  Therefore, the Aditya-1 mission has now been revised to “Aditya-L1 mission” and will be inserted in a halo orbit around the L1, which is 1.5 million km from the Earth.  The satellite carries additional six payloads with enhanced science scope and objectives.

The project is approved and the satellite will be launched during 2019 – 2020 timeframe by PSLV-XL from Sriharikota.

Aditya-1 was meant to observe only the solar corona.  The outer layers of the Sun, extending to thousands of km above the disc (photosphere) is termed as the corona.  It has a temperature of more than a million degree Kelvin which is much higher than the solar disc temperature of around 6000K. How the corona gets heated to such high temperatures is still an unanswered question in solar physics.

Aditya-L1 with additional experiments can now provide observations of Sun's Photosphere (soft and hard X-ray), Chromosphere (UV) and corona (Visible and NIR).  In addition, particle payloads will study the particle flux emanating from the Sun and reaching the L1 orbit, and the magnetometer payload will measure the variation in magnetic field strength at the halo orbit around L1.   These payloads have to be placed outside the interference from the Earth’s magnetic field and could not have been useful in the low earth orbit.

The main payload continues to be the coronagraph with improved capabilities.  The main optics for this experiment remains the same.  The complete list of payloads, their science objective and lead institute for developing the payload is provided below:

Visible Emission Line Coronagraph (VELC): To study the diagnostic parameters of solar corona and dynamics and origin of Coronal Mass Ejections (3 visible and 1 Infra-Red channels); magnetic field measurement of solar corona down to tens of Gauss – Indian Institute of Astrophysics (IIA)
Solar Ultraviolet Imaging Telescope (SUIT): To image the spatially resolved Solar Photosphere and Chromosphere in near Ultraviolet (200-400 nm) and measure solar irradiance variations - Inter-University Centre for Astronomy & Astrophysics (IUCAA) 

Aditya Solar wind Particle Experiment (ASPEX): To study the variation of solar wind properties as well as its distribution and spectral characteristics – Physical Research Laboratory (PRL)       

Plasma Analyser Package for Aditya (PAPA): To understand the composition of solar wind and its energy distribution – Space Physics Laboratory (SPL), VSSC       

Solar Low Energy X-ray Spectrometer (SoLEXS): To monitor the X-ray flares for studying the heating mechanism of the solar corona – ISRO Satellite Centre (ISAC)

High Energy L1 Orbiting X-ray Spectrometer (HEL1OS): To observe the dynamic events in the solar corona and provide an estimate of the energy used to accelerate the particles during the eruptive events - ISRO Satellite Centre (ISAC)and Udaipur Solar Observatory (USO), PRL

Magnetometer: To measure the magnitude and nature of the Interplanetary Magnetic Field – Laboratory for Electro-optic Systems (LEOS) and ISAC.

With the inclusion of multiple payloads, this project also provides an opportunity to solar scientists from multiple institutions within the country to participate in space based instrumentation and observations.  Thus the enhanced Aditya-L1 project will enable a comprehensive understanding of the dynamical processes of the sun and address some of the outstanding problems in solar physics.

Offline Ohsin

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Re: Aditya Solar Observation Mission, PSLV (XL) 2017
« Reply #18 on: 01/26/2016 06:22 AM »
Updated Image
"Well, three cheers to Sharma, but our real baby is INSAT."

Offline Steven Pietrobon

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Re: Aditya Solar Observation Mission, PSLV (XL) 2017
« Reply #19 on: 01/27/2016 02:58 AM »
The launch year in the title needs to be updated to 2019 and the name changed to Aditya L1.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline input~2

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Re: Aditya-L1 Solar Observation Mission, PSLV (XL) 2019
« Reply #20 on: 02/05/2016 04:25 PM »
The launch year in the title needs to be updated to 2019 and the name changed to Aditya L1.
Thanks! Done!

Offline ss1_3

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Re: Aditya-L1 Solar Observation Mission, PSLV (XL) 2019
« Reply #21 on: 02/09/2016 10:20 AM »
Aditya-L1 may get a sibling at L5   :)

http://www.pressreader.com/india/the-hindu/20160209/281694023823141/TextView

Quote
According to ADCOS Chairman, and former ISRO chief and cosmic ray scientist U.R. Rao, a second spacecraft can be sent to Point L5, about 1.3 million km away and at a 30-degree angle to L1, for a fuller picture of the sun. It could follow L1 a few months or a year apart, he told The Hindu.

Quote
Dr. Rao said early discussions have taken place on a possible L5 mission. ISRO, he said, could use the qualification model of the spacecraft which goes through the same tests and is as good as the final flight model.

“Activities related to the Aditya-L1 mission have started,” confirmed ISRO Chairman A.S. Kiran Kumar. “Two [spacecraft to sun] together will become unique. Having another one at L5 will give a significant advantage in measurements. We have to still take it up and it must go through all the regular approval processes through the Union Cabinet and budgeting.”


Offline russianhalo117

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Re: Aditya-L1 Solar Observation Mission, PSLV (XL) 2019
« Reply #22 on: 02/09/2016 01:55 PM »
Aditya-L1 may get a sibling at L5   :)

http://www.pressreader.com/india/the-hindu/20160209/281694023823141/TextView

Quote
According to ADCOS Chairman, and former ISRO chief and cosmic ray scientist U.R. Rao, a second spacecraft can be sent to Point L5, about 1.3 million km away and at a 30-degree angle to L1, for a fuller picture of the sun. It could follow L1 a few months or a year apart, he told The Hindu.

Quote
Dr. Rao said early discussions have taken place on a possible L5 mission. ISRO, he said, could use the qualification model of the spacecraft which goes through the same tests and is as good as the final flight model.

“Activities related to the Aditya-L1 mission have started,” confirmed ISRO Chairman A.S. Kiran Kumar. “Two [spacecraft to sun] together will become unique. Having another one at L5 will give a significant advantage in measurements. We have to still take it up and it must go through all the regular approval processes through the Union Cabinet and budgeting.”


Yes, its recently been filed in ESA's Helieophysics Satellite database as Aditya-L5 Solar Observation Mission, PSLV (XL) 20xx
in the data base there are four Satellites (two to L1 and two to L5) with two being the primary satellites and the remaining two being the replenishment satellites.

Offline vyoma

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Re: Aditya-L1 Solar Observation Mission, PSLV (XL) 2019
« Reply #23 on: 05/28/2016 09:35 PM »
Aditya-L1 payload as per ISRO 2015-16 annual report.
« Last Edit: 05/28/2016 09:36 PM by vyoma »

Offline vyoma

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Re: Aditya-L1 Solar Observation Mission, PSLV (XL) 2019
« Reply #24 on: 07/10/2016 04:11 AM »
http://www.asianage.com/editorial/india-sets-sight-sun-s-corona-experiment-218

Quote
Visible Emission Line Coronagraph (VELC), the main payload for the mission is being built at the Indian Institute of Astrophysics, Bengaluru. The advisory committee for space sciences is keeping tab of the projects.

Quote
Jagdev Singh, Principal Investigator, VELC mission, Indian Institute of Astrophysics, Bengaluru said, the VELC is undergoing various stages of testing.

“We have finished the designing part. The engineering and flight models will be ready in two years. The Sun’s corona experiment can be launched in three year’s time.”

Quote
“Though the project was being discussed from 2006 the works started only in 2010. We are confident of launching it in 2019,” he said. “The experiment will be placed in the Lagrangian point (L1). It is about 1.5 million kilometres from Earth where the gravitational force due to the Earth and the Sun works in the opposite direction and the payload put at that point can see the Sun all the time without any eclipse,” he added.

Offline vyoma

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Re: Aditya-L1 Solar Observation Mission, PSLV (XL) 2019
« Reply #25 on: 08/09/2016 06:14 PM »

Offline vyoma

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Re: Aditya-L1 Solar Observation Mission, PSLV (XL) 2019
« Reply #26 on: 08/14/2016 07:41 PM »
PAPA payload info from ISRO SPL 2014-15 annual report.

Offline worldtimedate

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Re: Aditya-L1 Solar Observation Mission, PSLV (XL) 2019
« Reply #27 on: 09/04/2016 08:49 PM »
Speaking to reporters here on Saturday, Mr. Annadurai, after inaugurating the INSPIRE - DST Science Camp at VOC College, said Aditya, the first Indian mission to study the sun, would be launched in 2019 - 2020. Preliminary works for this mission are progressing as planned.

Source :
ISRO's Aditya to be launched by 2020

worldtimedate [ http://www.world-timedate.com/ ]
« Last Edit: 09/04/2016 08:49 PM by worldtimedate »

Offline sanman

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Re: Aditya-L1 Solar Observation Mission, PSLV (XL) 2019
« Reply #28 on: 11/21/2017 11:23 PM »
Aditya-L1 on track for launch in 2019, confirms ISRO chief

http://www.financialexpress.com/industry/technology/indias-maiden-mission-to-sun-scheduled-for-2019-says-isro-chief-watch-video/941630/


Quote
India is all set for the take-off of its maiden mission to the Sun by the year 2019. Indian Space Research Organisation (ISRO) chairman AS Kiran Kumar on Monday, during an interview at the FICCI at 90 event said, “Aditya-L1, India’s maiden mission to the Sun, will be launched in 2019”.



Offline worldtimedate

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Re: Aditya-L1 Solar Observation Mission, PSLV (XL) 2019
« Reply #29 on: 12/03/2017 05:10 AM »
Following is a very comprehensive report from the Hindu Newspaper on Aditya scheduled to be launched in 2019

Here comes the sun watcher, India's Aditya-L1

Quote
Sometime in 2019 or 2020 India will send ISRO's solar mission Aditya-L1 to a vantage point in space, known as the L1 Lagrange point, to do imaging and study of the sun. This launch will happen in the early part of the next solar cycle - an occurrence in which sunspots form on the face of the sun, growing in size and number and eventually diminishing, all over a period of eleven years. It will be a mission of many firsts.

Quote
The so-called L1 point is 1.5 million kilometres away. Here, due to the delicate balance of gravitational forces, the satellite will require very little energy to maintain its orbit. Also it will not be eclipsed from the sun. The 1,500-kg class satellite will be programmed to orbit this point and image the sun's magnetic field from space for the very first time in the world. Scientists hope to capture the close-ups of the sun from here, uninterrupted by eclipses for years.

Quote
Few other space agencies have successfully placed their satellites at this location. Among the few, the Solar and Heliospheric Observatory (SOHO), a NASA-ESA collaboration involving America and Europe, and NASA's Advanced Composition Explorer (ACE) are at L1 exclusively to study the sun and space weather, respectively. Aditya-L1 is expected to be the very first to study from space two months from the time of launch, the magnetic field of the sun's corona. The corona is the outer layer that we see during total solar eclipses. It will be the first 100% Indian mission which will not only negotiate a challenging orbit, but will also benefit the global scientific community in understanding the sun.

Quote
Earlier, the NASA-ESA mission SOHO was launched in 1995, and while it made many discoveries, its coronagraph, meant to image the sun, broke down shortly after the mission commenced. Hence there is currently no satellite imaging the sun from space. Aditya-L1 will not only fill this gap it will also literally, look deeper into the sun than SOHO. "The nominal mission lifetime is expected to be five years, though it is expected to go on for much longer, perhaps even ten," says Dipankar Banerjee from Indian Institute of Astrophysics (IIAP), Bengaluru, which is collaborating with ISRO on this project.

Quote
The mission will carry seven payloads, consisting of a coronagraph, equipment that will image the sun using ultraviolet filters, X-ray spectrometers, and particle samplers all being made within the country. The largest payload, or instrument, aboard the satellite, will be the Visible Emission Line Coronagraph (VLEC). This can view the sun more closely than has been done before even by SOHO.

worldtimedate [ http://www.world-timedate.com/ ]

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