Megha-Tropiques-1 Satellite

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Megha-Tropiques-1 Satellite

The Controlled Re-Entry Experiment for the decommissioned Megha-Tropiques-1 (MT-1) satellite was recently completed successfully by the Indian Space Research Organisation (ISRO).
The Pacific Ocean's uninhabited region between latitudes 5°S and 14°S and 119°W and 100°W was chosen as the MT1 re-entry zone's target.

About Megha-Tropiques-1

An Indo-French Joint Satellite Mission called Megha-Tropiques was created to examine the water cycle and energy exchanges in the tropics.
Understanding the life cycle of convective systems, their impact on the energy and moisture budget of the atmosphere in tropical regions, and how they affect tropical weather and climate are the main goals of this study.
It includes information on condensed water in clouds, atmospheric water vapour, precipitation, and evaporation, as well as scientific data on the water cycle's impact on the tropical atmosphere.
The Megha-Tropiques is a unique satellite for climate research with a circular orbit inclined 20 degrees to the equator that should also help researchers working to improve forecasting models.

What does "Controlled Re-entry" Mean?

De-orbiting to extremely low altitudes is required for controlled re-entries to make sure the crash takes place within a predetermined safe zone.
To reduce the risk of ground casualties, large satellites or rocket bodies that are likely to survive aero-thermal fragmentation during re-entry undergo controlled re-entry.
Aero-Thermal Fragmentation is the process by which an item moving quickly through the Earth's atmosphere gets broken apart or fragmented by intense heat and pressure.
All of these satellites are made to perform a controlled re-entry at the end of their useful lives.

The Following Four Payloads are Carried by Megha-Tropiques

The Imaging Radiometer Microwave Analysis and Detection of Rain and Atmospheric Structures (MADRAS), created by CNES and ISRO, is a Sounder for Probing Vertical Profiles of Humidity (SAPHIR) from CNES.
From CNES, ScaRaB, a scanner for radiation budget.

ROSA, a radio occultation sensor for vertical temperature and humidity profiling, was imported from Italy.

Source: Indian Express

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