Lakshya UPPSC PT 2022 – Science & Technology Lecture – 6 – Complete One Year Current Affairs

Table of Contents

Earth Observation Satellite EOS-04

FYI

Earth Observation Satellite EOS-04

Earth observation satellites are mainly remote sensing satellites that gather information about Earth’s physical, chemical and biological systems.
Many earth observation satellites have been employed on sun-synchronous orbit.
Currently, 13 operational satellites are in Sun-synchronous orbit – RESOURCESAT-1/2/2A, CARTOSAT-1/2/2A/2B, RISAT-1/2, OCEANSAT-2, Megha-Tropiques, SARAL and SCATSAT-1, and 4 in Geostationary orbit- INSAT-3D, Kalpana & INSAT 3A, INSAT -3DR.

PYQs

In which of the following activities are Indian Remote Sensing (IRS) satellites used? (UPSC CSE 2015)
(1) Assessment of crop productivity
(2) Locating ground water resources
(3) Mineral exploration
(4) Telecommunications
(5) Traffic studies
Select the correct answer using the code given below

a) 1, 2 and 3 only
b) 4 and 5 only
c) 1 and 2 only
d) 1, 2, 3, 4 and 5

Types of Orbits

NASA Earth Observation Systems

NASA EOS – Landsat – 9

ESA – Earth Observation System

Small Satellite Launch Vehicle

ISRO had initially planned to launch SSLV in the first quarter of this year however due to covid-19 induced lockdowns there has been a delay.
The SSLV will provide a payload capability of 500 kg to a 500-km planar orbit. (LEO). It is perfectly suited for launching multiple microsatellites at a time and supports multiple orbital drop-offs.
The government has sanctioned Rs 169 crores for the development of the project. This will cover the development & qualification of the vehicle systems and the flight demonstration through three development flights (SSLV-D1, SSLV-D2 & SSLV-D3).