Question Q.1GS3GS1

Aditya L1 mission is an important milestone as India's first space-based solar observatory. Enlist the major scientific objectives and the challenges of the mission.

Main Body

Aditya L1 is the solar observatory launched by India in order to enhance our understanding about Sun & our closest star.

Launch → PSLV-XL

Orbit → Lagrange point-L1 between Sun & Earth

Important milestone: India one of handful nations that have solar observatory, Capability to launch complex mission/perfect injection into L1 Halo orbit

Major objectives:

1Solar coronograph - Aditya L1 will produce one of the largest solar coronograph

(II) Solar spectrum study - to see the various emissions of sun

(III) Solar plasma study and observe patterns in plasma emission

(IV) Sunspots and solar cycle monitoring by ensuring accurate detection of solar maxima and solar minima

Challenges:

1Accurate placement of Aditya-L1 into L1 orbit - achieved successfully

(II) Deep space working of instruments near the Sun and high plasma bombardment

(III) Accurate readings and sending data in real time

ISRO had overcome all the above challenges and shown that it can undertake complex solar missions like NASA, ESA.

— Snehith Chakka · AIR 139

160 words6 paragraphs

Clear structure with identified launch vehicle and orbital placement
Comprehensive listing of major scientific objectives
Specific mention of challenges faced and overcome
Recognition of India's position among spacefaring nations
Systematic enumeration of challenges
Recognition of ISRO's achievement in overcoming technical obstacles
Comparative reference to international space agencies

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Topper

Snehith Chakka

AIR 1392025

Subject & Paper

GS3GS1

Topic

Space Technology

Space Missions

Aditya L1 Solar Observatory

Writing Stats

160

Total words

Paragraphs

Technical and structured

Tone

Linked PYQ

Sivakasi in Tamil Nadu is known for its manufacturing clusters on firecrackers and matches. The local economy of the area is largely dependent on firecrackers industry. It has led to tangible economic development and improved standard of living in the area. So far as child labour norms for hazardous industries like firecrackers industry are concerned, International Labour Organization (ILO) has set the minimum age as 18 years. In India, however, this age is 14 years. The units in industrial clusters of firecrackers can be classified into registered and non-registered entities. One typical unit is household-based work. Though the law is clear on the use of child labour employment norms in registered/non-registered units, it does not include household-based works. Household-based work means children working under the supervision of their parents/relatives. To evade child labour norms, several units project themselves as household-based works but employ children from outside. Needless to say that employing children saves the costs for these units leading to higher profits to the owners. On your visit to one of the units at Sivakasi, the owner takes you around the unit which has about 10-15 children below 14 years of age. The owner tells you that in his household-based unit, the children are all his relatives. You notice that several children smirk, when the owner tells you this. On deeper enquiry, you figure out that neither the owner nor the children are able to satisfactorily establish their relationship with each other. Bring out and discuss the ethical issues involved in the above case. What would be your reaction after your above visit?

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