# GSAT-1

> experimental communications satellite

**Wikidata**: [Q5514533](https://www.wikidata.org/wiki/Q5514533)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/GSAT-1)  
**Source**: https://4ort.xyz/entity/gsat-1

## Summary  
GSAT-1 is an experimental communications satellite developed by the Indian Space Research Organisation (ISRO). Launched in 2001, it was India's first dedicated satellite to test advanced communication technologies in geostationary orbit.

## Key Facts  
- **Launch Date**: April 18, 2001 ([Source](https://www.isro.gov.in/launchers/list-of-gslv-launches))  
- **Launch Vehicle**: Geosynchronous Satellite Launch Vehicle Mark I (GSLV Mk I) ([Source](https://www.isro.gov.in/launchers/list-of-gslv-launches))  
- **Mass**: 1,530 kilograms ([Source](https://www.isro.gov.in/spacecraft/list-of-communication-satellites))  
- **Operator/Owner**: Indian Space Research Organisation (ISRO) ([Source](https://www.isro.gov.in/launchers/list-of-gslv-launches))  
- **Orbit**: Geostationary transfer orbit ([Source](https://www.isro.gov.in/launchers/list-of-gslv-launches))  
- **COSPAR ID**: 2001-015A  
- **Launch Site**: Satish Dhawan Space Centre First Launch Pad ([Source](https://www.wikidata.org/wiki/Q6272367))  
- **Purpose**: Experimental telecommunications testing  

## FAQs  
### Q: Who launched GSAT-1?  
A: GSAT-1 was launched by ISRO using the Geosynchronous Satellite Launch Vehicle Mark I (GSLV Mk I) on April 18, 2001.  

### Q: What was the purpose of GSAT-1?  
A: It was an experimental satellite designed to test advanced communication technologies, including digital audio broadcasting and internet services.  

### Q: Where was GSAT-1 launched from?  
A: It was launched from the Satish Dhawan Space Centre First Launch Pad in India.  

## Why It Matters  
GSAT-1 marked a significant milestone for India's space program as its first dedicated experimental communications satellite. It demonstrated ISRO's capability to develop and launch advanced telecommunications payloads, paving the way for future operational satellites like the GSAT series. By testing digital audio broadcasting and internet services, GSAT-1 contributed to India's growing expertise in satellite communications, which later supported national infrastructure, including television, telephony, and broadband services. Its success also validated the GSLV Mk I launch vehicle, a critical step toward India's self-reliance in launching heavier payloads.  

## Notable For  
- **First Experimental GSAT**: GSAT-1 was the inaugural satellite in ISRO's GSAT series, focusing on advanced communication tests.  
- **GSLV Mk I Deployment**: It was one of the early payloads launched by India's GSLV Mk I, showcasing indigenous launch capabilities.  
- **Technology Demonstrator**: Tested key technologies like digital audio broadcasting and internet services in geostationary orbit.  

## Body  
### Launch and Deployment  
- **Launch Date**: April 18, 2001  
- **Launch Site**: Satish Dhawan Space Centre First Launch Pad  
- **Launch Vehicle**: GSLV Mk I ([Source](https://www.isro.gov.in/launchers/list-of-gslv-launches))  

### Technical Specifications  
- **Mass**: 1,530 kg  
- **Orbit**: Geostationary transfer orbit  
- **Operator**: ISRO  

### Mission Objectives  
- Tested digital audio broadcasting and internet services  
- Validated technologies for future communication satellites  

### Legacy  
- Pioneered India's GSAT series, leading to operational satellites like GSAT-2 and beyond.  
- Demonstrated ISRO's ability to develop and launch advanced communication payloads.

## References

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