Space Technology — Prelims Strategy

Prelims Strategy

Classify the term in the stem before matching details. A launch vehicle, satellite, orbit and instrument are different categories. A mission may use radar without being a communication satellite, and a launch date does not establish the date routine science operations begin. Use the NISAR sequence to practise separating these milestones.

Memorise the verified pairing: NASA L-band and ISRO S-band for NISAR, with launch on 30 July 2025 and a later science-phase update. Keep the twelve-day repeat cycle distinct from a claim that every place is observed continuously. Coverage, revisit and the particular data product require their own interpretation.

For application questions, identify what the sensor actually measures and what processing or ground evidence is needed. A plausible distractor may describe a real application but assign it to the wrong instrument or stage. Avoid accepting the word satellite as proof of perfect accuracy, uninterrupted coverage or an automatic administrative response. State only what the mission information establishes.