What is Insat-3DS?

About Insat-3DS

• It is a collaborative effort between ISRO and the India Meteorological Organisation (IMD).
• It is part of a series of climate observatory satellites aimed at enhancing climate services. Comprising three dedicated Earth observation satellites, including INSAT-3D and INSAT-3DR already in orbit.
• It will launched by using the Geosynchronous Launch Vehicle (GSLV-F14).

What is GSLV-F14?

• It is a more advanced rocket utilising liquid propellant.
• The rocket, distinguished by its higher capacity and the use of cryogenic liquid propellants in all three stages, presents a more complex engineering challenge but allows for a substantially higher lift-off weight capacity.

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Key facts about INSAT-3DR

• It is an advanced meteorological satellite of India configured with an imaging System and an Atmospheric Sounder.
• The significant improvements incorporated in INSAT-3DR are:
  • Imaging in Middle Infrared band to provide night time pictures of low clouds and fog
  • Imaging in two Thermal Infrared bands for estimation of Sea Surface Temperature (SST) with better accuracy
  • Higher Spatial Resolution in the Visible and Thermal Infrared bands
• Payloads: INSAT-3DR carries a multi spectral Imager, 19 channel Sounder, Data Relay Transponder and Search and Rescue Transponder.

Q1) What are Cryogenic liquids?

They have boiling points below minus 130o F (minus 90o C) and are used in research to provide extremely low temperatures for frozen storage and experimentation. Common cryogenic liquids of concern include nitrogen, helium, hydrogen, argon, methane, and carbon monoxide.

Source: Key tests completed on Insat-3DS, launch soon