The Indian Space and Research Organization (ISRO) is preparing to launch its latest spacecraft after the successful landing of Chandrayaan 3. We inform you that ISRO will launch the Aditya L1 mission which is the first solar mission by ISRO.
ISRO confirms the launch date of its highly anticipated solar mission – Aditya-L1 a few days after the soft landing of the Pragyan rover on the Moon’s south pole. According to the official tweet, ISRO will launch the PSLV-C57 vehicle for the Aditya L1 mission on September 2.
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Latest News and Updates www.isro.gov.in/Aditya_L1.html
PSLV-C57/Aditya-L1 mission
| January 25, 2024 | Successful Deployment of Magnetometer Boom on Aditya-L1 in Halo Orbit |
| January 6, 2024 | Aditya-L1 solar observatory is successfully inserted into Halo-Orbit around Sun-Earth |
| December 8, 2023 | In-orbit Health Status of Plasma Analyser Package for Aditya (PAPA) The SUIT payload captures full-disk images of the Sun in near ultraviolet wavelengths |
| December 1, 2023 | Solar wind Ion Spectrometer (SWIS) in the Aditya Solar wind Particle Experiment(ASPEX) payload is made operational |
| November 7, 2023 | HEL1OS captures first High-Energy X-ray glimpse of Solar Flares |
| October 8, 2023 | A Trajectory Correction Maneuvre (TCM), originally provisioned, was performed on October 6, 2023, for about 16 s. It was needed to correct the trajectory evaluated after tracking the Trans-Lagrangean Point 1 Insertion (TL1I) maneuvre performed on September 19, 2023. TCM ensures that the spacecraft is on its intended path towards the Halo orbit insertion around L1. |
| September 30, 2023 | The spacecraft has escaped Earth’s field of influence and is on its way to the Lagrange 1 (L1) point between the Sun and Earth. |
| September 25, 2023 | Evaluation of the space situation around the Sun-Earth Lagrange point L1. |
| September 19, 2023 | The spacecraft is currently traveling to the Sun-Earth L1 point. |
| September 18, 2023 | Aditya-L1 has commenced the collection of scientific data. |
| September 15, 2023 | Fourth Earth-bound maneuvre (EBN#4) is performed successfully. The new orbit attained is 256 km x 121973 km. |
| September 10, 2023 | Third Earth-bound maneuvre (EBN#3) is performed successfully. The new orbit attained is 296 km x 71767 km. |
| September 05, 2023 | The second Earth-bound maneuvre (EBN#2) is performed successfully. The new orbit attained is 282 km x 40225 km. |
| 03 September 2023 | The next maneuver (EBN#2) is scheduled for September 5, 2023, around 03:00 AM. EST. The first ground maneuver (EBN#1) was successfully carried out from ISTRAC, Bengaluru. The new orbit achieved is 245 km x 22,459 km. The satellite is nominally intact and operational. |
| 02 September 2023 | India’s first solar observatory has started its journey to the destination of the Sun-Earth point L1. The spacecraft precisely placed the satellite into its intended orbit Aditya-L1 was launched by PSLV-C57 successfully. |
What is Aditya L1 Mission 2023-24
Aditya L1 will be India’s first space mission to study the sun. The spacecraft will be placed in a halo orbit around the Lagrange Point 1 (L1) of the Sun-Earth system, which is about 1.5 million km from Earth. A satellite in orbit around the corona around point L1 has the great advantage of watching the sun continuously without any occultation or eclipse.
This will provide an even greater advantage for monitoring solar activities and their impact on space weather in real time. The spacecraft carries seven payloads to monitor the photosphere, chromosphere, and outer layers of the Sun (the corona) using electromagnetic, particle, and magnetic field detectors.
Using the L1 special observation point, four payloads observe the Sun directly, and the remaining three payloads perform in situ studies of particles and fields at the L1 Lagrangian point, providing important scientific studies of the diffusive influence of solar dynamics in the interplanetary medium.
Aditya L1 payload suits are expected to provide the most critical information for understanding coronal heating problems, coronal mass emission, preflare and flare activities and their properties, space weather dynamics, particle scattering, fields, etc.
ISRO Aditya L1 Mission Launch Date and Time
| Mission Name | Aditya L1 |
| Authority | Indian Space & Research Organization (ISRO) |
| Type of Mission | Solar Mission |
| ISRO Aditya L1 Mission Launch Date | September 2, 2023 |
| Time | 11:50 Hrs. IST from Sriharikota |
| ISRO Aditya L1 Budget | Rs 400 Crore |
| Objective of Aditya L1 | To Study the Gas Pattern, Coronal Heating & Solar Wind Acceleration |
| Aditya L1 Launch Vehicle | PSLV-C57/PSLV-XL |
| Landing Site | Lagrangian Point (L1) |
| Total Aditya L1 Payload | Seven(7) payloads |
| Official Website | isro.gov.in |
Science Objectives of the ISRO Aditya L1 Mission
The main science objectives of the Aditya-L1 mission are:
- Study of the dynamics of the solar upper atmosphere (chromosphere and corona).
- Study of coronal and chromosphere heating, partially ionized plasma physics, coronal mass ejection initiation, and flares.
- Observing the particle and plasma environment in situ and providing data to study particle dynamics from the Sun.
- Solar corona physics and its heating mechanism.
- Diagnosis of coronal and coronal loop plasmas: temperature, velocity, and density.
- The development, dynamics, and origin of CMEs – continuing medical education.
- Determine the sequence of processes occurring in multiple layers (chromosphere, base, and coronal extension) that ultimately lead to solar flare events.
- Magnetic field topology and magnetic field measurements in the solar corona.
- Space weather drivers (origin, composition, and dynamics of the solar wind).
Aditya-L1 Payloads
The Aditya-L1 instruments are tuned to observe mainly the solar atmosphere, the chromosphere, and the corona. On-site devices will monitor the local environment at L1. There are seven payloads on board, four of which carry remote sun sensing and three of which carry on-site monitoring.
Payloads besides their main capacity for scientific investigation.
| Type | Sl. No. | Payload | Capability |
|---|---|---|---|
| Remote Sensing Payloads | 1 | Visible Emission Line Coronagraph(VELC) | Corona/Imaging & Spectroscopy |
| 2 | Solar Ultraviolet Imaging Telescope (SUIT) | Photosphere and Chromosphere Imaging- Narrow & Broadband | |
| 3 | Solar Low Energy X-ray Spectrometer (SoLEXS) | Soft X-ray spectrometer: Sun-as-a-star observation | |
| 4 | High Energy L1 Orbiting X-ray Spectrometer(HEL1OS) | Hard X-ray spectrometer: Sun-as-a-star observation | |
| In-situ Payloads | |||
| 5 | Aditya Solar Wind Particle Experiment(ASPEX) | Solar wind/Particle Analyzer Protons and heavier Ions with directions | |
| 6 | Plasma Analyser Package For Aditya (PAPA) | Solar wind/Particle Analyzer Electrons and heavier Ions with directions | |
| 7 | Advanced Tri-axial High-Resolution Digital Magnetometers | In-situ magnetic field (Bx, By, and Bz). |
ISRO Aditya L1 Mission Budget
- The Indian Space and Research Organization has been working on various space missions and recently completed the Chandrayaan 3 mission.
- Now, they are ready to launch a new mission called Aditya L1 on September 2, 2023, which is a solar mission that aims to conduct studies related to gas patterns, coronal heating, and solar wind acceleration.
- You should know that the ISRO Aditya L1 task budget is Rs 400 crore, ISRO has started work on Aditya L1 from December 2019.
- The spacecraft is now ready for launch and the Aditya L-1 will be launched on September 2nd, 2023.
- Be sure to watch the live launch event on the ISRO YouTube channel and then you will feel proud of our scientists.
Important Links
| ISRO Official Website | Click Here |
| Aditya-L1 Mission Booklet | Click Here |
| Aditya-L1 Mission and Science Payloads | Click Here |
| Aditya-L1 Videos | Click Here |
| Halo-Orbit Insertion | Click Here |
| PSLV-C57 Lift off video | Click Here |
| Launch Stream | Click Here |
| Mission Details | Click Here |
| Gallery | Click Here |
| Appraisal | Click Here |
| Press Release on Sep 02, 2023 | Click Here |
FAQs of Aditya L1 Mission
The spacecraft will be placed in a halo orbit around the Lagrange Point 1 (L1) of the Sun-Earth system, which is about 1.5 million km from Earth.
The spacecraft is now ready for launch and the Aditya L-1 will be launched on September 2nd, 2023.
Launch on September 2, 2023, at 11:50 IST from Satish Dhawan Space Center in Sriharikota.
Rs 400 Crore.
Aditya L1 Launch Vehicle is PSLV-C57/PSLV-XL.