Satellite Technology — Prelims Strategy

Prelims Strategy

For Prelims, the strategy for satellite technology revolves around meticulous factual recall combined with conceptual clarity. Aspirants must focus on the 'what, where, and why' of different satellite types, orbits, and missions. Key areas include:

1
Satellite Types & Applications: — Memorize the primary function and key applications of communication (INSAT/GSAT), remote sensing (IRS series), navigation (NavIC), and scientific satellites (Astrosat, Chandrayaan, Mangalyaan, XPoSat).
2
Orbital Mechanics: — Understand the characteristics (altitude, inclination, period) and suitability of LEO, MEO, GEO, and SSO. Be able to differentiate between them.
3
Launch Vehicles: — Know which launch vehicle (PSLV, GSLV) is typically used for which type of satellite/orbit.
4
Key Missions: — For important Indian missions (especially recent ones from 2023-2024), remember their primary objective, launch vehicle, and key achievements.
5
Terminology: — Be familiar with terms like transponder, payload, bus, uplink/downlink, C/Ku/L-band, apogee/perigee.
6
Current Affairs: — Stay updated on recent launches, upcoming missions, and major policy changes (e.g., Indian Space Policy 2023, IN-SPACe). Use mnemonics and flashcards for quick recall. Practice MCQs that test both factual knowledge and conceptual understanding, paying attention to subtle differences in options.