India successfully launched its maiden solar mission Aditya L1 on September 2, 2023. The Aditya L1 mission will study the outer atmosphere of the Sun, also known as the corona.
Aditya L1 Launch Highlights
Why In News
- The Countdown For The Launch Of India’s Maiden Solar Mission, Aditya L1 Onboard The PSLV, Commenced From Sriharikota On Friday, ISRO Said. The Sun Observatory Mission Was Launched From This Spaceport At 11.50 Am.
- The Aditya-L1 Mission Will Take Around 109 Earth Days After Launch To Reach The Halo Orbit Around The L1 Point, Which Is About 1,500,000 Km (930,000 Mi) From Earth. The 1,500 Kg Satellite Carries Seven Science Payloads.
- Longest Flights Of PSLV Lasts For 63 Minutes After The Lift Off, The Rocket Will Eject Aditya-L1 And The Whole Mission Comes To An End At About 73 Minutes With The Passivation Of The Fourth Stage.
Steps Followed
- Rocket Ignition
- Ignition Of Two Air-lift PSOM’s(Propellant Strap-on Motors )
- Separation Of Four Ground-lit PSOM’S
- Separation Of Two Air-lit PSOM’s
- PS-1 Separation
- PS-2 Ignition
- Heatshield Separation
- PS2 Separation
- HPS3 Ignition
- HPS3 Separation
- 1st Cut-off Of PS4
- 2nd Ignition Of PS4
- 2nd Cut-off From PS4
- Satellite Separation
Stages Of Aditya L1
- ISRO Aditya- L1, India’s First Solar Observatory Mission, Successfully Lifted Off From Sriharikota At 11.50am. Automatic Launch Sequence Was Adopted.
- Stage Starts With Ignition Of S139 Booster Solid Rocket Motor And Ignition Of 4 Ground Lit Strap PSOM’s.
- Second Stage Ignited Operate On Pressure Feed Liquid Engine. The Heat Shield Separated From The Rocket. The Payload Fairing Has Separated, Giving The First Feel Of Space To The Aditya L1 Spacecraft Leaves Earth’s Dense Atmosphere.
- PSLV Separated From The Spacecraft And PS4 Is Now In Coasting Phase As It Tries To Attain Its Altitude.
- The PSLV’s PS4 Liquid Fourth Stage The Spacecraft Is Not Visible To The Tracking Station And Telemetry Will Be Received Only When It Comes Back In Visibility. Aditya L1 Has Separated From The Fourth Stage Of PSLV And It Has Now Begun Its Journey In Space On Its Own Forever.
How Long It Will Be In Earth Orbits
- Aditya L1 Will Stay In Earth-bound Orbits For 16 Days As It Undergoes Five Manoeuvres To Gain Speed Needed For L1 Jump. The Total Journey Time For ISRO’s Aditya- L1 Solar Mission From Sriharikota (Earth) To L1 Is Estimated To Be About Four Months.
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