SPACE
ISRO to launch Aditya-L1
- Indian Space Research Organisation (ISRO) announced that AdityaL1 will be launched on September 2.
About Aditya-L1
- It is India’s first space based observatory to study the sun.
- The spacecraft will be placed in a halo orbit around the Lagrange point 1 (L1) of the sunearth system, which is about 1.5 million km from the earth.
7 Payloads:
- The spacecraft carries seven payloads to observe the hotosphere, chromosphere and the outermost layers of the sun.
- They are
- Visible Emission Line Coronagraph (VELC)
- Solar Ultraviolet Imaging Telescope (SUIT)
- Solar Low Energy Xray Spectrometer (SoLEXS)
- High Energy L1 Orbiting Xray Spectrometer (HEL1OS)
- Aditya Solar wind Particle Experiment (ASPEX)
- Plasma Analyser Package For Aditya (PAPA)
- Advanced Triaxial High Resolution Digital Magnetometers.
Advantages of L1 point
- A satellite placed in the halo orbit around the L1 point has the major advantage of continuously viewing the sun without any occultation/eclipses.
- It will help in observing the solar activities and its effect on space weather in real time.
Other Solar Missions
| Space Agency/Country | Mission | Date |
| National Aeronautics and Space Administration (NASA)/US | Parker Solar Probe | August 2018 |
| NASA and European Space Agency (ESA) | The Solar Orbiter | February 2020 |
| NASA and JAXA | Transient Region and Coronal Explorer (TRACE), along with NASA, in. | 1998 |
| NASA, ESA and JAXA (Japan Aerospace Exploration Agency) | Solar and Heliospheric Observatory (SOHO). | December 1995 |
| JAXA | Hinotori (ASTRO-A) | 1981 |
| Yohkoh (SOLAR-A) | 1991 | |
| Hinode (SOLAR-B) | 2006 | |
| ESA | Ulysses | October 1990 |
| China | Advanced Space-based Solar Observatory | October 9, 2022 |
