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NASA-ISRO Synthetic Aperture Radar (NISAR) Launch To Be Held In 2024

Utkarsh Classes 16-11-2023
NASA-ISRO Synthetic Aperture Radar (NISAR) Launch To Be Held In 2024 Space 5 min read

NASA-ISRO Synthetic Aperture Radar (NISAR) is scheduled to launch in the first quarter of 2024. NISAR will be launched on the ISRO Geosynchronous Satellite Launch Vehicle Mark-II from the Satish Dhawan Space Centre in Sriharikota. NISAR, according to ISRO, is a Low Earth Orbit (LEO) observatory being constructed in collaboration with NASA.

About NASA-ISRO Synthetic Aperture Radar (NISAR) 

  • NISAR is a NASA-ISRO-developed Low Earth Orbit (LEO) observatory with a 2,800 kilograms SUV-sized satellite.
  • NISAR was created by US and Indian space agencies under a collaboration agreement concluded in 2014.
  • In January 2024, it will be launched into a near-polar orbit from Satish Dhawan Space Centre.
  • The satellite is expected to be operating for at least three years.
  • The three-year mission will examine all of Earth's land and ice-covered areas every 12 days. 
  • This will begin following a 90-day satellite commissioning period.

Features of NISAR

  • NISAR will be the first satellite mission to assess changes in our planet's surface using two separate radar frequencies (L-band and S-band).
  • NISAR is a dual-frequency imaging radar satellite since it has both L-band and S-band Synthetic Aperture Radar (SAR) equipment.
  • ISRO (Indian Space Research Organisation) provided the S-band radar, the Geosynchronous Satellite Launch Vehicle (GSLV) launch vehicle, and the spacecraft.
  • NASA provided an L-band radar, GPS, a high-capacity solid-state recorder for data storage, and a payload data subsystem.
  • NISAR will be equipped with a Synthetic Aperture Radar Instrument (SAR), an L-band SAR, an S-band SAR, and an antenna reflector.
  • The SAR payloads installed on the Integrated Radar Instrument Structure (IRIS) and the spacecraft bus are referred to as an observatory.
  • It also includes a massive 39-foot permanent antenna reflector composed of gold-plated wire mesh, which will be used to concentrate the radar signals emitted and received by the instrument structure's upward-facing feed.

Mission Characteristics Of NISAR

Orbit Altitude

747 km

Orbit Inclination

98.4°

Repeat Cycle

12 days

Time of Nodal Crossing

6 AM/ 6 PM

Orbit Control

< 500 m

Pointing Control

< 273 arcsec

Pointing

Left (south)

L/S Duty Cycle

> 50%/10%

Baseline Mission Duration

3 years

Consumables

5 years

Data and Product Access

Free & open

Wavelength

L-band: 24 cm

S-band: 9.3 cm

SAR Resolution

3–10 m mode-dependent

About ISRO

  • ISRO, or the Indian Space Research Organisation, is India's space agency that was established in 1969 to assist in the development of an indigenous Indian space programme.
  • ISRO is a space agency of the Government of India which aims to improve national development via the employment of space technology while simultaneously performing space scientific research and planetary exploration.
  • Antrix Corporation Limited (ACL) is ISRO's marketing arm, responsible for the promotion and commercialization of space goods, technical consultation services, and the transfer of ISRO-developed technology.
  • Founder: VikramA Sarabhai
  • Founded: 15 August 1969
  • ISRO headquarters -Bengaluru.
  • ISRO's current chairman- Shri S. Somanath.

National Aeronautics and Space Administration (NASA)

  • The National Aeronautics and Space Administration (NASA) is an autonomous agency of the United States federal government's executive branch.
  • The National Aeronautics and Space Act of 1958 established NASA.
  • Founder: Dwight D. Eisenhower
  • Founded: 29 July 1958, United States
  • Headquarters: Washington, D.C., United States

FAQ

Answer. The full form of ISRO is Indian Space Research Organisation.

Answer. The full form of NASA is National Aeronautics and Space Administration.

Answer. NISAR stands for NASA-ISRO Synthetic Aperture Radar.

Answer. India and USA have collaborated for the launch of NISAR.

Answer. NISAR is a NASA-ISRO-developed Low Earth Orbit (LEO) observatory with a 2,800 kilograms SUV-sized satellite.
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