Aditya-L1 - Revision history

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{{EngvarB|date=June 2019}}
{{Use dmy dates|date=June 2019}}
{{Infobox spaceflight
| name = Aditya-L1

| image = Aditya-L1_spacecraft.jpg
| image_caption = Aditya-L1 in deployed configuration (credit:ISRO)
| image_size = 
| mission_type = Solar observation
| operator = [[Indian Space Research Organisation|ISRO]]
| COSPAR_ID =
| SATCAT =
| mission_duration = 5 years (planned) <ref name="CurrSci_113_04"/>
| spacecraft_bus = I-1K {{Citation needed|date=August 2017}}

| manufacturer = [[Indian Space Research Organisation|ISRO]]{{\}}[[IUCAA]]{{\}}[[Indian Institute of Astrophysics|IIA]]
| dry_mass = {{convert|NNNN|||abbr=on}}
| launch_mass = {{convert|1500|kg|lb}} <ref name="CurrSci_113_04">{{cite journal|last1=Somasundaram|first1=Seetha|last2=Megala|first2=S.|title=Aditya-L1 mission|journal=Current Science|date=25 August 2017|volume=113|issue=4|pages=610|doi=10.18520/cs/v113/i04/610-612|url=http://www.currentscience.ac.in/Volumes/113/04/0610.pdf|access-date=25 August 2017}}</ref>
| payload_mass = {{convert|244|kg|lb|abbr=on}} (approx.) <ref name="CurrSci_113_04"/>
| power = 
| launch_date = January 2022<ref name="Somanath-20200803" />
| launch_rocket = [[Polar Satellite Launch Vehicle|PSLV-XL]] C56<ref name="CurrSci_113_04"/><ref name="Hindu1" /><ref name="ls-100321"/>
| launch_site = [[Satish Dhawan Space Centre]]

| orbit_reference = [[Lagrangian point#L1|Sun–Earth L<sub>1</sub>]]
| orbit_regime = [[Halo orbit]]
| orbit_epoch =
| orbit_periapsis =
| orbit_apoapsis =
| orbit_inclination =
| orbit_period = 177.86 days<ref name="COPUOS_62">{{cite web |last1=Sreekumar |first1=P. |title=Indian Space Science & Exploration : Global Perspective |url=http://www.unoosa.org/documents/pdf/copuos/2019/copuos2019tech32E.pdf |website=UNOOSA |access-date=30 June 2019 |page=8 |date=19 June 2019}}</ref>
| apsis = 
| instruments_list = {{Infobox spaceflight/Instruments
| acronym1 = VELC | name1 = Visible Emission Line [[Coronagraph]]
| acronym2 = SUIT | name2 = Solar Ultraviolet Imaging Telescope
| acronym3 = ASPEX | name3 = Aditya Solar wind Particle Experiment
| acronym4 = PAPA | name4 = Plasma Analyser Package for Aditya
| acronym5 = SoLEXS | name5 = Solar Low Energy X-ray Spectrometer
| acronym6 = HEL1OS | name6 = High Energy L1 Orbiting X-ray Spectrometer
| acronym7 = [[Magnetometer]] | name7 =  
}}
}}
'''Aditya''' ({{lang-sa|आदित्य, lit: Sun,<ref name="Aditya">{{cite web
|url =http://spokensanskrit.de/index.php?script=HK&tinput=aditya&country_ID=&trans=Translate&direction=AU
|title =Aditya
|access-date =14 November 2008
|publisher =Spoken Sanskrit
|archive-url =https://web.archive.org/web/20110719090830/http://spokensanskrit.de/index.php?script=HK&tinput=aditya&country_ID=&trans=Translate&direction=AU
|archive-date =19 July 2011
|url-status =dead
}}</ref>}} {{audio|Aditya.ogg|pronunciation}}) or '''Aditya-L1''' is a spacecraft mission to study the [[Sun]].<ref name="Hindu1">{{cite news
|url =http://www.hindu.com/2008/01/13/stories/2008011354801000.htm
|archive-url =https://web.archive.org/web/20080115072838/http://www.hindu.com/2008/01/13/stories/2008011354801000.htm
|url-status =dead
|archive-date =15 January 2008
|title =ISRO planning to launch satellite to study the sun
|date =13 January 2008
|work =[[The Hindu]]
|access-date =10 November 2008
}}</ref> It has been designed<ref name="UNI1">{{cite news
|url =http://www.uniindia.com/unilive%5Cunisite.nsf/All/2313550E763810CD652574FE0032C1B6
|title =After Chandrayaan-1's moon voyage, ISRO's Aditya to scout sun's surf
|date =11 November 2008
|access-date =14 November 2008
|publisher =[[United News of India]]}} {{Dead link|date=October 2010|bot=H3llBot}}</ref> and will be built in collaboration between the [[Indian Space Research Organisation]] (ISRO)<ref name="Hindu1" /> and various Indian research institutes. It is planned to be launched on the PSLV-C56 in December 2021 or January 2022.<ref name="Somanath-20200803">{{cite av media |people=[[S. Somanath]] |url=https://www.youtube.com/watch?v=sfvoVMyptYI |title=An Evening with Dr. S. Somanath, Director, VSSC, Trivandrum |medium=video |time=45:09–46:04 |date=3 August 2020 |access-date=14 August 2020 |via=[[YouTube]]}} Presentation slides available [https://imgur.com/a/ffL2XRp here] via Imgur.</ref><ref>{{Cite web|title=Questions in the Lok Sabha (AU2587)|url=http://164.100.47.194/Loksabha/Questions/QResult15.aspx?qref=21476&lsno=17|access-date=2021-03-14|website=Lok Sabha}}</ref> It is India's first solar mission.<ref>{{Cite web|url=https://www.jagranjosh.com/current-affairs/aditya-l1-know-everything-about-isros-first-solar-mission-1577679966-1|title=Aditya L1: Know Everything about ISRO's First Solar Mission|date=2019-12-30|website=www.jagranjosh.com|access-date=2019-12-31}}</ref><ref>{{Cite web|url=https://www.businessinsider.in/science/space/news/isro-aditya-l1-mission-to-the-sun-objectives-and-goals/articleshow/73032067.cms|title=8 pictures you must see to understand what ISRO's Aditya L1 is looking for|website=Business Insider|access-date=2019-12-31}}</ref>

==History==
Aditya was conceptualised in January 2008 by the Advisory Committee for Space Research. It was initially envisaged as a small 400 kg, low-Earth orbiting satellite with a [[coronagraph]] to study the [[solar corona]]. An experimental budget of 3 Crore [[Indian rupee|INR was]] allocated for the financial year 2016–2017.<ref name="2016-17_budget">{{cite press release | url=http://indiabudget.nic.in/ub2016-17/eb/sbe84.pdf | title=Notes on Demands for Grants, 2016-2017 | publisher=Department of Space | access-date=9 September 2016 | archive-url=https://web.archive.org/web/20160917064145/http://indiabudget.nic.in/ub2016-17/eb/sbe84.pdf | archive-date=17 September 2016 | url-status=dead }}</ref><ref>{{Cite news| url=http://www.thehindu.com/todays-paper/tp-national/aditya-gets-ready-to-gaze-at-the-sun/article8212387.ece| title=Aditya gets ready to gaze at the sun |work=The Hindu| access-date=2017-08-25|language=en}}</ref><ref>{{Cite news |url=http://www.thehindu.com/todays-paper/ISRO-planning-to-launch-satellite-to-study-the-sun/article15143000.ece| title=ISRO planning to launch satellite to study the sun| last=Gandhi| first=Divya|date=13 January 2008 |work=The Hindu| access-date=26 August 2017}}</ref> The scope of the mission has since been expanded and it is now planned to be a comprehensive solar and space environment observatory to be placed at the [[Lagrangian point]] L1,<ref>{{cite news| url=http://www.thehindu.com/opinion/the-sun-shines-on-indias-aditya/article7878625.ece |title=The sun shines on India's Aditya| last=Desikan| first=Shubashree| date=15 November 2015|work=The Hindu |access-date=12 August 2018}}</ref> so the mission was renamed "Aditya-L1". {{As of|2019|7|df=}}, the mission has an allocated cost of ₹378.53 [[crore]] excluding launch costs.<ref>{{Cite web| url=http://164.100.24.220/loksabhaquestions/annex/171/AU1972.pdf|title=Lok Sabha Unstarred Question No.1972| date=3 July 2019 |website=LokSabha}}</ref>

==Overview==
[[File:Lagrange-better.png|thumb|300x300px|[[Lagrangian point]]s in the Sun–Earth system (not to scale) – a small object at any one of the five points will hold its relative position.]]
The Aditya-L1 mission will be inserted in a [[halo orbit]] around the [[Lagrangian point|L1 point]], which is about 1.5 million km from Earth. The 1,500 kg satellite carries seven science payloads with diverse objectives, including but not limited to, the [[Coronal heating problem|coronal heating]], [[solar wind]] acceleration, coronal magnetometry, origin and monitoring of near-UV solar radiation (which drives Earth's upper atmospheric dynamics and global climate), coupling of the solar photosphere to chromosphere and corona, in-situ characterisations of the space environment around Earth by measuring energetic particle fluxes and magnetic fields of the solar wind and [[Solar storm|solar magnetic storms]] that have adverse effects on space and ground-based technologies.<ref name="CurrSci_113_04"/>

Aditya-L1 will be able to provide observations of Sun's [[photosphere]], [[chromosphere]] and [[solar corona|corona]]. In addition, an instrument will study the [[solar energetic particles]]' flux reaching the L1 orbit, while a [[magnetometer]] payload will measure the variation in [[Sun#Magnetic field|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 hence could not have been useful in the low Earth orbit as proposed on the original Aditya mission concept.<ref>{{Cite web| url=https://www.isro.gov.in/aditya-l1-first-indian-mission-to-study-sun| title=Aditya - L1 First Indian mission to study the Sun - ISRO| website=www.isro.gov.in|access-date=2019-06-19}}</ref>

One of the major unsolved issues in the field of [[solar physics]] is that the upper atmosphere of the Sun is {{cvt|1000000|K|C F}} hot whereas the lower atmosphere is just {{cvt|6000|K|C F}}. In addition, it is not understood how exactly the Sun's radiation affects the dynamics of the Earth's atmosphere on shorter as well as on longer time scale. The mission will obtain near simultaneous images of the different layers of the Sun's atmosphere, which reveal the ways in which the energy may be channeled and transferred from one layer to another. Thus the Aditya-L1 mission will enable a comprehensive understanding of the dynamical processes of the Sun and address some of the outstanding problems in solar physics and [[heliophysics]].

The satellite is planned to launched onboard PSLV-XL flight C56 in late 2021 or early 2022.<ref name="ls-100321">{{cite web|url=http://164.100.24.220/loksabhaquestions/annex/175/AU2587.pdf|title=Question -MISSIONS OF ISRO Loksabha|date=10 March 2021|publisher=Lok Sabha}}</ref>

==Payloads==

* '''Visible Emission Line Coronagraph (VELC)''': The [[coronagraph]] creates an artificial total solar eclipse in space by blocking the sunlight by an occultor. This telescope will have capabilities of [[spectral imaging]] of the corona in visible and infra-red wavelengths. The objectives are to study the diagnostic parameters of solar corona and dynamics and origin of [[coronal mass ejection]]s (using three visible and one infra-red channels); magnetic field measurements of the solar corona down to tens of [[Gauss (unit)|Gauss]]. Additional objectives are to determine why the solar atmosphere is so hot, and how the changes in the Sun can affect [[space weather]] and Earth's climate. The VELC payload weighs nearly 170 kg.<ref name=":0">{{Cite news| url=http://www.thehindu.com/sci-tech/science/here-comes-the-sun-watcher-indias-aditya-l1/article20942099.ece |title=Here comes the sun watcher, India's Aditya-L1| last=Desikan| first=Shubashree| date=26 November 2017|work=TheHindu|access-date=26 November 2017}}</ref>
**PI Institute: [[Indian Institute of Astrophysics]] (IIA)
* '''Solar Ultraviolet Imaging Telescope (SUIT)''': SUIT will observe the Sun between 200-400 nm wavelength range and it will provide full disk images of different layers of the solar atmosphere by making use of 11 filters. The Sun has never been observed from space in this wavelength range. The spacecraft being at the first Lagrangian point, SUIT shall be observing the Sun continuously without interruption. The instrument is being developed under the leadership of A. N. Ramaprakash and Durgesh Tripathi at the [[Inter-University Centre for Astronomy and Astrophysics]] (IUCAA) at Pune, in collaboration with ISRO and other institutes. The SUIT payload weighs nearly 35 kg.<ref name=":0" />
**PI Institute: [[Inter-University Centre for Astronomy and Astrophysics]] (IUCAA), Pune.
**Co-I Institutes: [[Indian Institute of Astrophysics]] (IIA), [[Center of Excellence in Space Sciences India]] (CESSI)-IISER Kolkata.
* '''Aditya Solar wind Particle Experiment (ASPEX)<ref>{{cite journal
| last = Goyal
| first = S. K.
| date = April 18, 2018
| title = Aditya Solarwind Particle EXperiment (ASPEX) onboard the Aditya-L1 mission
| url = https://www.sciencedirect.com/science/article/abs/pii/S0032063317304786
| journal = Planetary and Space Science
| volume = 163
| pages = 42–55
| doi = 10.1016/j.pss.2018.04.008
| access-date = May 18, 2020
}}</ref>''': To study the variation and properties of the [[solar wind]] as well as its distribution and spectral characteristics.
**PI Institute: [[Physical Research Laboratory]] (PRL).
* '''Plasma Analyser Package for Aditya (PAPA):''' To understand the composition of solar wind and its energy distribution.
**PI Institute: Space Physics Laboratory (SPL), [[Vikram Sarabhai Space Centre|VSSC]].
* '''Solar Low Energy X-ray Spectrometer (SoLEXS)''': To monitor the [[X-ray spectroscopy|X-ray flares]] for studying the enigmatic [[Coronal heating problem|coronal heating]] mechanism of the solar corona.
**PI Institute: [[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 [[solar energetic particles]] during the eruptive events.
**PI Institutes: ISRO Satellite Centre (ISAC) and Udaipur Solar Observatory (USO), PRL.
* '''Magnetometer<ref>{{cite journal
| last = Yadav
| first = Vipin K.
| date = November 8, 2017
| title = Science objectives of the magnetic field experiment onboard Aditya-L1 spacecraft
| url = https://www.sciencedirect.com/science/article/pii/S0273117717308037
| journal = Advances in Space Research
| volume = 61
| issue = 2
| pages = 749–758
| doi = 10.1016/j.asr.2017.11.008
| access-date = May 18, 2020
}}</ref>''': To measure the magnitude and nature of the [[interplanetary magnetic field]].
**PI Institute: Laboratory for Electro-optic Systems (LEOS) and ISAC.

==References==
{{reflist|30em}}

==External links==
*{{cite web |url=http://www.isro.gov.in/aditya-l1-first-indian-mission-to-study-sun |title=Aditya - L1 First Indian mission to study the Sun |publisher=[[Indian Space Research Organisation]] |access-date=1 June 2017 }}

{{Sun spacecraft|state=collapsed}}
{{Indian space programme}}
{{Indian spacecraft}}
{{Future spaceflights}}

{{DEFAULTSORT:Aditya (Space Craft)}}
[[Category:Satellites of India]]
[[Category:2022 in spaceflight]]
[[Category:2022 in India]]
[[Category:Missions to the Sun]]

← Older revision		Revision as of 13:12, 2 September 2023
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	\| launch_rocket = [[Polar Satellite Launch Vehicle\|PSLV-XL]](C57)<ref name="CurrSci_113_04" />		\| launch_rocket = [[Polar Satellite Launch Vehicle\|PSLV-XL]](C57)<ref name="CurrSci_113_04" />
	\| launch_site = [[Satish Dhawan Space Centre]]		\| launch_site = [[Satish Dhawan Space Centre]]
	\| launch_contractor = [[Indian Space Research Organisation]]		\|launch rocket = [[PSLV Polar Satellite Launch Vehicle]]
			\|launch_contractor = [[Indian Space Research Organisation]]
	\| orbit_reference = [[Lagrange point#L1\|Sun–Earth L<sub>1</sub>]]		\| orbit_reference = [[Lagrange point#L1\|Sun–Earth L<sub>1</sub>]]
	\| orbit_regime = [[Halo orbit]]		\| orbit_regime = [[Halo orbit]]
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	'''Aditya-L1''' ({{lang-sa\|आदित्य, lit: Sun,<ref>{{Cite web \|title=Aditya \|url=http://spokensanskrit.de/index.php?script=HK&tinput=aditya&country_ID=&trans=Translate&direction=AU \|url-status=dead \|archive-url=https://web.archive.org/web/20110719090830/http://spokensanskrit.de/index.php?script=HK&tinput=aditya&country_ID=&trans=Translate&direction=AU \|archive-date=19 July 2011 \|access-date=14 November 2008 \|publisher=Spoken Sanskrit}}</ref>}}{{audio\|Aditya.ogg\|pronunciation\|help=no}}) is a [[coronagraph]]y spacecraft to study the [[Sun#Atmosphere\|solar atmosphere]], designed and developed by the [[Indian Space Research Organisation]] (ISRO) and various other Indian research institutes.<ref name="CurrSci_113_04" /> It will be inserted at about 1.5 million km from Earth in a [[halo orbit]] around the [[Lagrange point\|L1 Lagrange point]] between the [[Earth]] and the [[Sun]] where it will study the solar atmosphere, [[Solar storm\|solar magnetic storms,]] and their impact on the environment around [[Earth]].<ref>{{Cite web \|title=Aditya – L1 First Indian mission to study the Sun \|url=http://www.isro.gov.in/aditya-l1-first-indian-mission-to-study-sun \|url-status=dead \|archive-url=https://web.archive.org/web/20180303041833/https://www.isro.gov.in/aditya-l1-first-indian-mission-to-study-sun \|archive-date=3 March 2018 \|access-date=1 June 2017 \|publisher=ISRO}}</ref>		'''Aditya-L1''' ({{lang-sa\|आदित्य, lit: Sun,<ref>{{Cite web \|title=Aditya \|url=http://spokensanskrit.de/index.php?script=HK&tinput=aditya&country_ID=&trans=Translate&direction=AU \|url-status=dead \|archive-url=https://web.archive.org/web/20110719090830/http://spokensanskrit.de/index.php?script=HK&tinput=aditya&country_ID=&trans=Translate&direction=AU \|archive-date=19 July 2011 \|access-date=14 November 2008 \|publisher=Spoken Sanskrit}}</ref>}}{{audio\|Aditya.ogg\|pronunciation\|help=no}}) is a [[coronagraph]]y spacecraft to study the [[Sun#Atmosphere\|solar atmosphere]], designed and developed by the [[Indian Space Research Organisation]] (ISRO) and various other Indian research institutes.<ref name="CurrSci_113_04" /> It will be inserted at about 1.5 million km from Earth in a [[halo orbit]] around the [[Lagrange point\|L1 Lagrange point]] between the [[Earth]] and the [[Sun]] where it will study the solar atmosphere, [[Solar storm\|solar magnetic storms,]] and their impact on the environment around [[Earth]].<ref>{{Cite web \|title=Aditya – L1 First Indian mission to study the Sun \|url=http://www.isro.gov.in/aditya-l1-first-indian-mission-to-study-sun \|url-status=dead \|archive-url=https://web.archive.org/web/20180303041833/https://www.isro.gov.in/aditya-l1-first-indian-mission-to-study-sun \|archive-date=3 March 2018 \|access-date=1 June 2017 \|publisher=ISRO}}</ref>

	It is the first Indian mission dedicated to observing the Sun and was launched aboard a [[Polar Satellite Launch Vehicle\|PSLV-XL]] launch vehicle<ref name="CurrSci_113_04" /> at 11:50 hrs. ([[Indian Standard Time\|IST]]) on September 2, 2023.<ref>{{Cite tweet \|author=ISRO \|author-link=ISRO \|user=isro \|number=1697506899242217921 \|title=PSLV-C57/Aditya-L1 Mission: The 23-hour 40-minute countdown leading to the launch at 11:50 Hrs. IST on September 2, 2023, has commended today at 12:10 Hrs. The launch can be watched LIVE on ISRO Website https://isro.gov.in Facebook https://facebook.com/ISRO YouTube https://youtube.com/watch?v=_IcgGYZTXQw… DD National TV channel from 11:20 Hrs. IST }}</ref><ref name="it-20230824"/><ref name="launch" />		It is the first Indian mission dedicated to observing the Sun and was launched aboard a [[Polar Satellite Launch Vehicle\|PSLV-XL]] launch vehicle<ref name="CurrSci_113_04" /> at 11:50 hrs. ([[Indian Standard Time\|IST]]) on September 2, 2023.<ref>{{Cite tweet \|author=ISRO \|author-link=ISRO \|user=isro \|number=1697506899242217921 \|title=PSLV-C57/Aditya-L1 Mission: The 23-hour 40-minute countdown leading to the launch at 11:50 Hrs. IST on September 2, 2023, has commended today at 12:10 Hrs. The launch can be watched LIVE on ISRO Website https://isro.gov.in Facebook https://facebook.com/ISRO YouTube https://youtube.com/watch?v=_IcgGYZTXQw… DD National TV channel from 11:20 Hrs. IST }}</ref><ref name="it-20230824"/><ref name="launch" /> It was launched 10 days after the historic success of the moon mission, Chandrayaan 3. It successfully achieved an Orbit of approximately 235 x 19500 km just an hour later. It was seperated from the PS4 stage soon after at about 12:54 p.m. IST.

	== Mission objectives ==		== Mission objectives ==
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	* Diagnostics of the coronal and coronal loop plasma: Temperature, velocity and density.		* Diagnostics of the coronal and coronal loop plasma: Temperature, velocity and density.
	* Development, dynamics, and origin of CMEs		* Development, dynamics, and origin of CMEs
	* Identify the sequence of processes that occur at multiple layers (chromosphere, base, and extended corona) ~~wthateventually~~ leads to solar eruptive events.		* Identify the sequence of processes that occur at multiple layers (chromosphere, base, and extended corona) that eventually leads to solar eruptive events.
	* Magnetic field topology and magnetic field measurements in the solar corona .		* Magnetic field topology and magnetic field measurements in the solar corona .
	* Drivers for space weather (origin, composition and dynamics of solar wind .NM<ref>{{Cite web \|title=ADITYA-L1 \|url=https://www.isro.gov.in/Aditya_L1.html \|access-date=2023-08-29 \|website=www.isro.gov.in \|archive-date=3 August 2023 \|archive-url=https://web.archive.org/web/20230803035925/https://www.isro.gov.in/Aditya_L1.html \|url-status=live }}</ref>		* Drivers for space weather (origin, composition and dynamics of solar wind .NM<ref>{{Cite web \|title=ADITYA-L1 \|url=https://www.isro.gov.in/Aditya_L1.html \|access-date=2023-08-29 \|website=www.isro.gov.in \|archive-date=3 August 2023 \|archive-url=https://web.archive.org/web/20230803035925/https://www.isro.gov.in/Aditya_L1.html \|url-status=live }}</ref>
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	== History ==		== History ==
	[[File:Aditya L1.jpg\|thumb\|Aditya-L1 in stowed configuration]]		[[File:Aditya L1.jpg\|thumb\|Aditya-L1 in stowed configuration]]
	Aditya was conceptualised in January 2008 by the Advisory Committee for Space Research{{dubious\|date=August 2023}}. It was initially envisaged as a small {{cvt\|400\|kg}}, [[Low Earth orbit\|LEO]](800 km) satellite with a [[coronagraph]] to study the [[solar corona]]. An experimental budget of [[Indian rupee\|3 Crore INR]] was allocated for the financial year 2016–2017.<ref name="2016-17_budget">{{Cite press release \|title=Notes on Demands for Grants, 2016–2017 \|publisher=Department of Space \|url=http://indiabudget.nic.in/ub2016-17/eb/sbe84.pdf \|access-date=9 September 2016 \|url-status=dead \|archive-url=https://web.archive.org/web/20160917064145/http://indiabudget.nic.in/ub2016-17/eb/sbe84.pdf \|archive-date=17 September 2016}}</ref><ref>{{Cite news \|title=Aditya gets ready to gaze at the sun \|work=The Hindu \|url=http://www.thehindu.com/todays-paper/tp-national/aditya-gets-ready-to-gaze-at-the-sun/article8212387.ece \|access-date=2017-08-25 \|archive-date=26 August 2017 \|archive-url=https://web.archive.org/web/20170826033106/http://www.thehindu.com/todays-paper/tp-national/aditya-gets-ready-to-gaze-at-the-sun/article8212387.ece \|url-status=live }}</ref><ref>{{Cite news \|last=Gandhi \|first=Divya \|date=13 January 2008 \|title=ISRO planning to launch satellite to study the sun \|work=The Hindu \|url=http://www.thehindu.com/todays-paper/ISRO-planning-to-launch-satellite-to-study-the-sun/article15143000.ece \|access-date=26 August 2017 \|archive-date=15 September 2018 \|archive-url=https://web.archive.org/web/20180915091339/https://www.thehindu.com/todays-paper/ISRO-planning-to-launch-satellite-to-study-the-sun/article15143000.ece \|url-status=live }}</ref> The scope of the mission has since been expanded and it is now planned to be a comprehensive solar and space environment observatory to be placed at t[[Lagrange ~~point\|agrange~~ point]] L1,<ref>{{Cite news \|last=Desikan \|first=Shubashree \|date=15 November 2015 \|title=The sun shines on India's Aditya \|work=The Hindu \|url=http://www.thehindu.com/opinion/the-sun-shines-on-indias-aditya/article7878625.ece \|access-date=12 August 2018 \|archive-date=13 March 2018 \|archive-url=https://web.archive.org/web/20180313004843/http://www.thehindu.com/opinion/the-sun-shines-on-indias-aditya/article7878625.ece \|url-status=live }}</ref> so the mission was renamed "Aditya-L1". {{As of\|2019\|7\|df=}}, the mission has an allocated cost of ₹₹.78.53 [[crore]] excluding launch costs.<ref>{{Cite web \|date=3 July 2019 \|title=Lok Sabha Unstarred Question No.1972 \|url=http://164.100.24.220/loksabhaquestions/annex/171/AU1972.pdf \|publisher=Lok Sabha \|access-date=4 July 2019 \|archive-date=4 July 2019 \|archive-url=https://web.archive.org/web/20190704001514/http://164.100.24.220/loksabhaquestions/annex/171/AU1972.pdf \|url-status=live }}</ref>		Aditya was conceptualised in January 2008 by the Advisory Committee for Space Research{{dubious\|date=August 2023}}. It was initially envisaged as a small {{cvt\|400\|kg}}, [[Low Earth orbit\|LEO]](800 km) satellite with a [[coronagraph]] to study the [[solar corona]]. An experimental budget of [[Indian rupee\|3 Crore INR]] was allocated for the financial year 2016–2017.<ref name="2016-17_budget">{{Cite press release \|title=Notes on Demands for Grants, 2016–2017 \|publisher=Department of Space \|url=http://indiabudget.nic.in/ub2016-17/eb/sbe84.pdf \|access-date=9 September 2016 \|url-status=dead \|archive-url=https://web.archive.org/web/20160917064145/http://indiabudget.nic.in/ub2016-17/eb/sbe84.pdf \|archive-date=17 September 2016}}</ref><ref>{{Cite news \|title=Aditya gets ready to gaze at the sun \|work=The Hindu \|url=http://www.thehindu.com/todays-paper/tp-national/aditya-gets-ready-to-gaze-at-the-sun/article8212387.ece \|access-date=2017-08-25 \|archive-date=26 August 2017 \|archive-url=https://web.archive.org/web/20170826033106/http://www.thehindu.com/todays-paper/tp-national/aditya-gets-ready-to-gaze-at-the-sun/article8212387.ece \|url-status=live }}</ref><ref>{{Cite news \|last=Gandhi \|first=Divya \|date=13 January 2008 \|title=ISRO planning to launch satellite to study the sun \|work=The Hindu \|url=http://www.thehindu.com/todays-paper/ISRO-planning-to-launch-satellite-to-study-the-sun/article15143000.ece \|access-date=26 August 2017 \|archive-date=15 September 2018 \|archive-url=https://web.archive.org/web/20180915091339/https://www.thehindu.com/todays-paper/ISRO-planning-to-launch-satellite-to-study-the-sun/article15143000.ece \|url-status=live }}</ref> The scope of the mission has since been expanded and it is now planned to be a comprehensive solar and space environment observatory to be placed at [[Lagrange point]] L1,<ref>{{Cite news \|last=Desikan \|first=Shubashree \|date=15 November 2015 \|title=The sun shines on India's Aditya \|work=The Hindu \|url=http://www.thehindu.com/opinion/the-sun-shines-on-indias-aditya/article7878625.ece \|access-date=12 August 2018 \|archive-date=13 March 2018 \|archive-url=https://web.archive.org/web/20180313004843/http://www.thehindu.com/opinion/the-sun-shines-on-indias-aditya/article7878625.ece \|url-status=live }}</ref> so the mission was renamed "Aditya-L1". {{As of\|2019\|7\|df=}}, the mission has an allocated cost of ₹₹.78.53 [[crore]] excluding launch costs.<ref>{{Cite web \|date=3 July 2019 \|title=Lok Sabha Unstarred Question No.1972 \|url=http://164.100.24.220/loksabhaquestions/annex/171/AU1972.pdf \|publisher=Lok Sabha \|access-date=4 July 2019 \|archive-date=4 July 2019 \|archive-url=https://web.archive.org/web/20190704001514/http://164.100.24.220/loksabhaquestions/annex/171/AU1972.pdf \|url-status=live }}</ref>
	[[File:Aditya-L1 spacecraft.jpg\|thumb\|left\|Aditya L1 in deployed configuration]]		[[File:Aditya-L1 spacecraft.jpg\|thumb\|left\|Aditya L1 in deployed configuration]]