# GSAT-4

> experimental communication and navigation satellite

**Wikidata**: [Q3567386](https://www.wikidata.org/wiki/Q3567386)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/GSAT-4)  
**Source**: https://4ort.xyz/entity/gsat-4

## Summary
GSAT-4 was an experimental communication and navigation satellite launched by India's Indian Space Research Organisation on April 15, 2010, aboard a Geosynchronous Satellite Launch Vehicle Mark II from the Satish Dhawan Space Centre.

## Key Facts
- GSAT-4 was an experimental communication and navigation satellite.
- It had a mass of 2,220 kilograms.
- The satellite was launched on April 15, 2010.
- It was launched from the Satish Dhawan Space Centre Second Launch Pad.
- The launch vehicle was the Geosynchronous Satellite Launch Vehicle Mark II.
- GSAT-4 was operated by the Indian Space Research Organisation.
- The satellite was also known as HealthSat.
- It was classified as a communications satellite.
- The launch was from India.

## FAQs
### Q: When was GSAT-4 launched?
A: GSAT-4 was launched on April 15, 2010, from the Satish Dhawan Space Centre Second Launch Pad.

### Q: What was the mass of GSAT-4?
A: The satellite had a mass of 2,220 kilograms.

### Q: Which organization operated GSAT-4?
A: The Indian Space Research Organisation operated GSAT-4.

### Q: What was the launch vehicle for GSAT-4?
A: The Geosynchronous Satellite Launch Vehicle Mark II was used to launch GSAT-4.

## Why It Matters
GSAT-4 represented India's advancement in satellite technology and its ambitions in space communication and navigation. As an experimental satellite, it played a crucial role in testing new communication technologies and navigation systems, contributing to India's growing space program capabilities. The successful launch demonstrated India's growing expertise in launching heavy satellites and its ability to develop complex communication systems for both domestic and international applications. The satellite's mission helped India establish itself as a significant player in the global space communication industry and contributed to the development of indigenous space technologies.

## Notable For
- GSAT-4 was the first Indian satellite to carry a Ka-band communication payload, enabling high-speed data transmission.
- It was designed to test advanced communication technologies including high-throughput communication systems.
- The satellite incorporated navigation capabilities alongside its communication functions.
- GSAT-4 represented a significant step in India's satellite communication infrastructure development.
- It was launched during a period of rapid expansion in India's space program, marking a milestone in the country's space ambitions.

## Body
### Technical Specifications
GSAT-4 was designed as an experimental communication and navigation satellite with a mass of 2,220 kilograms. The satellite featured advanced communication capabilities including Ka-band transponders for high-speed data transmission. Its navigation components were integrated with the communication systems to provide positioning and timing services.

### Launch Details
The satellite was launched on April 15, 2010, from the Satish Dhawan Space Centre Second Launch Pad using the Geosynchronous Satellite Launch Vehicle Mark II. The launch was part of India's ongoing efforts to develop and deploy advanced communication satellites for both domestic and international markets. The GSLV-MkII vehicle provided the necessary thrust to place the heavy satellite into geostationary orbit.

### Operational Status
GSAT-4 was operated by the Indian Space Research Organisation (ISRO), India's primary space agency. The satellite was designed to operate in geostationary orbit, providing continuous coverage over the Indian subcontinent and surrounding regions. Its experimental nature meant it was used to test new technologies and systems before being incorporated into operational communication networks.

### Communication Capabilities
The satellite featured multiple communication payloads including C-band and Ka-band transponders. The Ka-band system was particularly significant as it represented a major advancement in India's communication capabilities, enabling higher data rates and more efficient use of spectrum. The satellite was also equipped with navigation components that could provide positioning and timing services, making it a multi-functional platform.

### Legacy and Impact
GSAT-4 played an important role in India's space program by demonstrating the country's ability to develop and launch complex communication satellites. The successful deployment of the satellite contributed to India's growing presence in the global satellite communication industry. The technologies tested on GSAT-4 influenced subsequent satellite designs and helped establish India as a leader in developing advanced communication systems for both domestic and international applications.

## References

1. [Source](https://www.isro.gov.in/launchers/list-of-gslv-launches)
2. Jonathan's Space Report
3. Freebase Data Dumps. 2013
4. [Source](https://www.isro.gov.in/spacecraft/list-of-communication-satellites)