# Rohini Satellite RS-1
**Wikidata**: [Q16320529](https://www.wikidata.org/wiki/Q16320529)  
**Source**: https://4ort.xyz/entity/rohini-satellite-rs-1

## Summary
Rohini Satellite RS-1 was an artificial satellite operated by the Indian Space Research Organisation (ISRO) as part of the Rohini Satellite Series. Launched on July 18, 1980, aboard the Satellite Launch Vehicle 3, it was placed into a low Earth orbit with a mass of 35 kilograms.

## Key Facts
- **Launch Date:** July 18, 1980
- **Operator / Manufacturer:** Indian Space Research Organisation (ISRO)
- **Mass:** 35 kilograms
- **Launch Vehicle:** Satellite Launch Vehicle 3
- **Launch Site:** Satish Dhawan Space Centre SLV Launch Pad
- **Orbit Type:** Low Earth Orbit
- **Orbital Parameters:** Apoapsis of 919 km; Periapsis of 305 km
- **Orbital Inclination:** 44.7 degrees
- **COSPAR ID:** 1980-062A
- **Alternate Name:** RS-1

## FAQs
### Q: When was Rohini Satellite RS-1 launched?
A: Rohini Satellite RS-1 was launched on July 18, 1980.

### Q: What rocket was used to deploy Rohini Satellite RS-1?
A: The satellite was deployed using the Satellite Launch Vehicle 3 (SLV-3).

### Q: What were the specific orbital details of the satellite?
A: The satellite occupied a low Earth orbit with an apoapsis of 919 kilometres, a periapsis of 305 kilometres, and an orbital inclination of 44.7 degrees.

## Why It Matters
Rohini Satellite RS-1 serves as a significant entry in the catalog of Indian spaceflight history. As a product of the Indian Space Research Organisation (ISRO), it represents a step in the development of indigenous satellite technology and launch capabilities. The mission demonstrated the ability to place a human-made object into a specific low Earth orbit using the Satellite Launch Vehicle 3. Weighing 35 kilograms, the satellite's deployment from the Satish Dhawan Space Centre validated technical parameters such as orbital inclination (44.7 degrees) and altitude variations (periapsis of 305 km to apoapsis of 919 km). As part of the broader Rohini Satellite Series, RS-1 contributed to the class of artificial satellites designed to orbit the Earth, marking a specific configuration of mass and orbital mechanics achieved by India in 1980.

## Notable For
- Being a component of the **Rohini Satellite Series**.
- Utilizing the **Satellite Launch Vehicle 3** for orbital insertion.
- Maintaining a specific **low Earth orbit** with distinct apoapsis and periapsis points.
- Manufacture and operation solely by the **Indian Space Research Organisation**.
- Executing a significant **rocket launch** event from the Satish Dhawan Space Centre on July 18, 1980.

## Body
### Mission Profile
Rohini Satellite RS-1 (also known as RS-1) is classified as an artificial satellite belonging to India. The mission was managed, manufactured, and owned by the Indian Space Research Organisation (ISRO). The satellite was successfully launched on July 18, 1980. The launch event took place at the Satish Dhawan Space Centre SLV Launch Pad.

### Technical Specifications
The satellite had a total mass of 35 kilograms. It was designed to operate in a low Earth orbit. The specific orbital parameters recorded for the satellite include:
- **Apoapsis:** 919 kilometres
- **Periapsis:** 305 kilometres
- **Inclination:** 44.7 degrees

### Launch and Deployment
The deployment of Rohini Satellite RS-1 was facilitated by the Satellite Launch Vehicle 3 (SLV-3). This event is cataloged under the significant event type "rocket launch." The satellite is identified internationally by the COSPAR ID 1980-062A and the Satellite Catalog Number (SCN) 11899.

### Classification and Series
RS-1 is an instance of an artificial satellite and is a part of the Rohini Satellite Series. It shares its classification with other human-made objects put into orbit. The Wolfram Language entity code for the satellite is `Entity["Satellite", "11899"]`.

## References

1. Jonathan's Space Report
2. [Source](https://www.isro.gov.in/Spacecraft/rs-1-1)