Launch site trivia: India’s first domestic geostationary satellite INSAT-1A (10 April 1982) was launched from which country?

Introduction / Context:INSAT-1A inaugurated India’s domestic GEO program. Knowing the launch nation/vehicle is a common historical detail in satellite communications coursework and exams.

Given Data / Assumptions:

• Date: 10 April 1982.
• Spacecraft: INSAT-1A, geostationary communications satellite.
• Question asks for the launch country.

Concept / Approach:

INSAT-1A was launched by a U.S. Delta launch vehicle from Cape Canaveral, USA. Although later Indian satellites flew on various foreign and domestic launchers, this first in the INSAT-I series went from the United States.

Step-by-Step Solution:

Verification / Alternative check:

Public ISRO/INTELSAT archives list Delta launch from the U.S. for INSAT-1A.

Why Other Options Are Wrong:

• USSR/UK: not the launch nation for INSAT-1A.
• UP: not a country; distractor.
• France: not applicable for this flight.

Common Pitfalls:

• Confusing launch sites of later INSAT or GSAT missions with the first in the series.

Final Answer:

USA