# THEOS-2

> Thai Earth observation satellite launched in 2023

**Wikidata**: [Q122980393](https://www.wikidata.org/wiki/Q122980393)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/THEOS-2)  
**Source**: https://4ort.xyz/entity/theos-2

## Summary
THEOS-2 is a Thai Earth observation satellite launched in 2023. Operated by the Geo-Informatics and Space Technology Development Agency, it is designed to observe Earth from orbit and follows its predecessor, THEOS-1.

## Key Facts
- THEOS-2 was launched on October 9, 2023, at 01:36:25 UTC.
- It is a Thai satellite, operated by the Geo-Informatics and Space Technology Development Agency.
- The satellite has a launch weight of 425 kilograms.
- Its design life is 10 years.
- THEOS-2 was launched by a Vega rocket (flight VV23) from Ensemble de Lancement Vega.
- It was manufactured by Airbus Defence and Space.
- The satellite operates in a Sun-synchronous orbit.
- THEOS-2 is preceded by THEOS-1, which was launched in 2008.

## FAQs
### Q: What is THEOS-2?
A: THEOS-2 is a Thai Earth observation satellite. It is specifically designed to observe Earth from orbit and was launched in 2023.

### Q: When was THEOS-2 launched?
A: THEOS-2 was launched on October 9, 2023, at 01:36:25 UTC. The launch took place from Ensemble de Lancement Vega.

### Q: Who operates THEOS-2?
A: THEOS-2 is operated by the Geo-Informatics and Space Technology Development Agency. It is a satellite for Thailand.

### Q: What is the mass of THEOS-2?
A: The launch weight of THEOS-2 is 425 kilograms.

### Q: What is the expected service life of THEOS-2?
A: THEOS-2 has a design life of 10 years.

## Why It Matters
THEOS-2 holds significance as Thailand's second Earth observation satellite, building upon the capabilities established by its predecessor, THEOS-1. Its operation by the Geo-Informatics and Space Technology Development Agency underscores Thailand's commitment to advancing its space infrastructure and leveraging satellite technology for national benefit. As an Earth observation satellite, THEOS-2 is crucial for collecting vital data about the Earth's surface, which can be applied to a wide range of critical areas. This includes environmental monitoring, natural resource management, urban planning, and disaster preparedness and response. The satellite's 10-year design life ensures a sustained period of data collection, providing long-term insights and supporting informed decision-making for various governmental and scientific applications within Thailand and potentially the broader region.

## Notable For
- It is Thailand's second Earth observation satellite, following THEOS-1.
- Operated by the Geo-Informatics and Space Technology Development Agency.
- Utilizes the S450 Optical spacecraft bus.
- Designed for a service life of 10 years.
- Launched by a Vega rocket, specifically flight VV23.

## Body

### General Information
THEOS-2, also known by its aliases T2V and Thailand Earth Observation System 2, is a Thai Earth observation satellite. It is an instance of an artificial satellite specifically designed to observe Earth from orbit. The satellite is operated by the Geo-Informatics and Space Technology Development Agency. Its country of origin is Thailand.

### Launch Details
THEOS-2 was launched on October 9, 2023, at 01:36:25 UTC. The launch vehicle used was a Vega rocket, specifically flight VV23. The launch took place from Ensemble de Lancement Vega. Following its launch, THEOS-2 was assigned the COSPAR ID 2023-155A and NSSDCA ID 2023-155A. A significant event in its history is the rocket launch on the specified date and location.

### Technical Specifications
The satellite has a launch weight (mass) of 425 kilograms. It was manufactured by Airbus Defence and Space. THEOS-2 is built upon the S450 Optical spacecraft bus. Its power is supplied by two spacecraft solar arrays. The satellite is designed for a service life of 10 years.

### Orbital Characteristics
THEOS-2 operates in a Sun-synchronous orbit. Its SCN (Satellite Catalog Number) is 58016.

### Predecessor
THEOS-2 follows THEOS-1, which was a Thai Earth observation satellite launched in 2008.

## References

1. [Source](https://space.skyrocket.de/doc_sdat/theos-2.htm)
2. Jonathan's Space Report
3. [Source](https://www.eoportal.org/satellite-missions/theos-2#spacecraft)