10 Differences Between pslv and gslv

PSLV vs GSLV: Exploring the Differences

Have you ever wondered about the differences between PSLV (Polar Satellite Launch Vehicle) and GSLV (Geosynchronous Satellite Launch Vehicle)? These two Indian space launch vehicles play a crucial role in the country’s space programs. In this article, we will delve into the details of both PSLV and GSLV, examining their features, applications, and key differences. So, let’s dive in!

What is PSLV?

The Polar Satellite Launch Vehicle (PSLV) is a four-stage rocket designed by the Indian Space Research Organisation (ISRO). It is primarily used to launch polar satellites into orbit, making it India’s workhorse launch vehicle.

Examples of PSLV

1. PSLV-C37: This mission broke records by successfully launching 104 satellites in a single flight, including the Cartosat-2 series satellite.

2. PSLV-C11: This mission successfully placed the Chandrayaan-1 spacecraft into orbit, marking India’s first lunar exploration mission.

Uses of PSLV

The PSLV plays a vital role in various space applications. Some of its uses include:

  • Earth observation and remote sensing
  • Meteorological studies
  • Navigation
  • Scientific missions

What is GSLV?

The Geosynchronous Satellite Launch Vehicle (GSLV) is an advanced launch vehicle developed by ISRO. It is designed to place communication satellites into geostationary orbits.

Examples of GSLV

1. GSLV Mk III: This is India’s most powerful launch vehicle, capable of carrying heavier payloads. It successfully launched the Chandrayaan-2 mission to the Moon.

2. GSLV-F08: This mission carried the GSAT-6A communication satellite into orbit, enhancing mobile communication capabilities.

Uses of GSLV

The GSLV serves several purposes, including:

  • Communication satellite deployment
  • Weather observation
  • TV and radio broadcasting
  • Satellite-based navigation systems

Differences Between PSLV and GSLV

Difference Area PSLV GSLV
Launch Vehicle Type Polar Satellite Launch Vehicle Geosynchronous Satellite Launch Vehicle
Payload Capacity Lower payload capacity Higher payload capacity
Target Orbit Polar orbit Geosynchronous orbit
Launch Frequency More frequent launches Less frequent launches
Launch Site Satish Dhawan Space Centre, Sriharikota, India Satish Dhawan Space Centre, Sriharikota, India
Primary Application Polar satellite launches Geostationary satellite launches
Development Status Operational since 1993 Operational since 2001
Largest Payload Launched Cartosat-2 series satellites (104 satellites) GSAT-19 (4,000 kg)
Engine Configuration Vikas engine (4 stages) L110 engine (2 stages)
Cost Efficiency Relatively more cost-efficient Slightly less cost-efficient


In summary, PSLV and GSLV are two space launch vehicles developed by ISRO for different purposes. While PSLV mainly focuses on launching polar satellites into orbit, GSLV specializes in placing communication satellites into geostationary orbits. Other significant differences include payload capacity, target orbit, launch frequency, and development status. Both launch vehicles contribute immensely to India’s space exploration efforts.

People Also Ask:

1. How do PSLV and GSLV differ in terms of payload capacity?
PSLV has a lower payload capacity compared to GSLV. It can carry payloads ranging from 1,000 kg to 1,500 kg, whereas GSLV can carry payloads up to 4,000 kg.

2. Are PSLV and GSLV launched from the same site?
Yes, both PSLV and GSLV are launched from the Satish Dhawan Space Centre located in Sriharikota, India.

3. What is the primary application of PSLV?
The primary application of PSLV is to launch polar satellites into orbit for various purposes such as earth observation, remote sensing, and scientific missions.

4. When did PSLV and GSLV become operational?
PSLV became operational in 1993, while GSLV started its operations in 2001.

5. Which is the heaviest payload launched by PSLV and GSLV?
PSLV’s heaviest payload launched was the Cartosat-2 series satellites, which included 104 satellites. On the other hand, GSLV successfully launched the GSAT-19 satellite, weighing around 4,000 kg.

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