TheNISAR satellitehas reached a significant milestone as its two major components have been integrated to form a single spacecraft in Bengaluru, the US space agencyNASAhas said in a release.
According to NASA, In June, engineers successfully united the spacecraft bus and radar instrument payload of the NISAR satellite in a clean room at theISROfacility in Bengaluru. The payload had been transported from NASA’s Jet Propulsion Laboratory (JPL) in Southern California earlier in March, while the spacecraft bus was constructed at the ISRO facility.
The satellites cylindrical radar instrument payload contains two radar systems and is about the size of an SUV and partially wrapped in gold-coloured thermal blanketing. The S-band radar is particularly useful for monitoring crop structure and the roughness of land and ice surfaces, while the L-band instrument can penetrate denser forest canopies to study the woody trunks of trees, among other observables, the release added.
The wavelengths of the S-band and L-band signals are about 4 inches (10 centimetres) and 10 inches (25 centimetres), respectively, and both sensors have the potential to see through clouds and collect data day and night.
NISAR, a collaborative project between NASA and the Indian Space Research Organisation (ISRO), stands for NASA-ISRO Synthetic Aperture Radar. This advanced satellite is designed to track the movements of Earth’s land and ice sur