Space Applications — Prelims Strategy

Prelims Strategy

For Prelims, focus on factual accuracy and conceptual clarity regarding different types of satellites and their primary applications. Memorize the names of key ISRO satellite series (INSAT, IRS, Cartosat, RISAT, NAVIC) and their specific purposes (e.

g., INSAT for communication/meteorology, IRS for remote sensing, Cartosat for high-resolution mapping, RISAT for all-weather radar imaging, NAVIC for navigation). Understand the basic principles of remote sensing (active vs.

passive, electromagnetic spectrum bands) and satellite communication (geostationary orbit, transponders). Pay close attention to recent developments: new satellite launches (EOS series), the roles of NSIL and IN-SPACe, and specific applications in current events (e.

g., COVID-19 support, Smart Cities). PYQs often test the differentiation between satellite types and their functions. Create flashcards for quick recall of satellite names, their orbits, and primary applications.

Practice MCQs that require distinguishing between similar-sounding terms or applications.