Why ISRO Launches Satellites From Sriharikota

Nearly all of ISRO's satellite launches take place from the Satish Dhawan Space Centre in Sriharikota, a coastal location in Andhra Pradesh, and this choice reflects several deliberate geographic and technical considerations essential to safe, efficient rocket launches.

The Importance of a Coastal Launch Location

Launching rockets from a coastal site allows spent rocket stages and any potential launch failures to fall safely into the ocean rather than over populated land areas, a critical safety consideration for any space programme conducting regular orbital launches.

Why Proximity to the Equator Matters

Sriharikota's relatively low latitude location offers a meaningful advantage for certain types of satellite launches, since locations closer to the equator can take better advantage of the Earth's rotational velocity, providing a slight but genuinely useful boost to rockets launching eastward, particularly relevant for missions targeting geostationary orbits.

The Site's Physical Characteristics

Sriharikota is a barrier island along India's eastern coast, offering the open, largely unpopulated space needed for a large-scale launch facility, along with the necessary coastal access for safe rocket trajectory paths over the Bay of Bengal.

How Large Is the Sriharikota Facility

The Satish Dhawan Space Centre spans a substantial area, encompassing multiple launch pads, static test facilities, and extensive supporting infrastructure required for assembling, testing and launching various classes of ISRO's launch vehicles, from smaller satellite launch vehicles to larger, more powerful rockets.

The History Behind Choosing This Location

The site was selected in the late 1960s and developed through the 1970s as India's space programme grew beyond its earlier, smaller-scale facilities, with the location's coastal access and safety advantages making it a natural choice for what would become India's primary spaceport.

Why the Facility Was Renamed After Satish Dhawan

The space centre was later renamed in honor of Satish Dhawan, a former ISRO Chairman whose leadership played a significant role in strengthening India's space programme during a critical period of its development, reflecting the broader practice of honoring foundational contributors to India's space achievements.

Other Considerations Behind the Site Selection

Beyond geographic advantages, factors like existing infrastructure connectivity, land availability for large-scale expansion, and distance from major population centres for safety purposes all contributed to Sriharikota's selection as India's primary launch site over other potential locations.

Final Verdict

ISRO's choice of Sriharikota as its primary launch site reflects a combination of safety, geographic and technical advantages, including coastal access for safe rocket trajectories and a relatively equatorial location beneficial for certain satellite launches. This deliberate site selection has supported decades of ISRO's launch operations and remains central to India's space launch infrastructure today.