Consider the following statements:
1. Aditya-L1, a space observatory with 9 payloads designed to study the Sun.
2. The VELC will take image the Sun’s atmosphere, the Corona at high resolution and time cadence.
3. Aditya -L1 carries an ultraviolet imager, 3 X-ray spectrometer and four in -situ instruments to measure plasma parameters.
How many of the statements given above are correct?
Options
AOnly one statement is correct.
BOnly two statements are correct
CAll three statements are correct.
DNone of the statements is correct.
Show AnswerHide Answer
Correct Answer
AOnly one statement is correct.
Model Answer
Official answer key: B. The answer shown above (A) is the academy’s own.
Aditya-L1 was launched using a PSLV XL launch vehicle from the Satish Dhawan Space Centre in Sriharikota to establish a solar observatory at a halo orbit around the L1 lagrangian point of the Sun-Earth system.
It carries seven payloads to examine the Sun's properties using visible and X-ray spectrometers, a coronagraph, analysers for solar winds and energetic particles, and magnetometers. Hence, statement 1 is incorrect.
This multi-wavelength observation capacity will probe the Sun's corona, the chromosphere, the photosphere, flares and coronal mass ejections. Hence, statement 2 is correct.
ADITYA L1 carries 2 Xray spectrometer and 3 Insitu instruments. Hence, statement 3 is incorrect.
Additional Information
Lagrange points are positions in space where objects sent there tend to stay put.
At Lagrange points, the gravitational pull of two large masses precisely equals the centripetal force required for a small object to move with them.
These points in space can be used by spacecraft to reduce fuel consumption needed to remain in position.
Global space missions to the sun:
DSCOVR (2015) by NOAA (USA)
Parker Solar Probe (2018-2025) by NASA
Solar Orbiter (2020) by ESA
CuSP (2022) by NASA
Infographic of Aditya-L1's seven payloads (VELC, SUIT, SoLEXS, HEL1OS, ASPEX, PAPA, MAG) with their locations on the spacecraft.Diagram of the five Lagrange points L1 to L5 of the Sun-Earth system.
