# S3-1
**Wikidata**: [Q113148521](https://www.wikidata.org/wiki/Q113148521)  
**Source**: https://4ort.xyz/entity/s3-1

## Summary
S3-1 is an artificial satellite launched on October 29, 1974, as part of the Titan IIID launch vehicle program. It is also known by the aliases ST73-5A, 07499, and SESP P73-5, and carries the COSPAR ID 1974-085C.

## Key Facts
- S3-1 is an artificial satellite, a human-made object placed into orbit
- It was launched on October 29, 1974, using a Titan IIID launch vehicle
- The satellite's COSPAR ID is 1974-085C, and its NSSDCA ID is also 1974-085C
- It is classified under the same category as 142 other artificial satellites
- The Titan IIID launch vehicle model has 10 related sitelinks
- S3-1 has the SCn value 07499, as referenced in academic sources
- It is also known by the aliases ST73-5A, 07499, and SESP P73-5

## FAQs
### Q: What is S3-1?
A: S3-1 is an artificial satellite launched on October 29, 1974, using a Titan IIID launch vehicle. It is also known by the aliases ST73-5A, 07499, and SESP P73-5.

### Q: When was S3-1 launched?
A: S3-1 was launched on October 29, 1974.

### Q: What type of launch vehicle was used for S3-1?
A: S3-1 was launched using a Titan IIID launch vehicle.

### Q: What are the alternative names for S3-1?
A: S3-1 is also known as ST73-5A, 07499, and SESP P73-5.

### Q: What is the COSPAR ID of S3-1?
A: The COSPAR ID of S3-1 is 1974-085C.

## Why It Matters
S3-1 represents a significant milestone in space exploration and satellite technology. As an artificial satellite launched in 1974, it contributes to our understanding of Earth's orbit and the capabilities of space-based observation and communication. The use of the Titan IIID launch vehicle demonstrates the technological advancements of the time, allowing for more complex and capable satellites to be placed in orbit. S3-1's existence and operation likely provided valuable data and experience that informed subsequent satellite designs and missions, contributing to the ongoing evolution of space technology and our ability to explore and utilize space for scientific, commercial, and military purposes.

## Notable For
- Being launched on October 29, 1974, marking a specific point in space exploration history
- Utilizing the Titan IIID launch vehicle, a significant model in space launch technology
- Having multiple aliases (ST73-5A, 07499, SESP P73-5), indicating its importance in various contexts
- Possessing a unique SCn value of 07499, as referenced in academic sources
- Contributing to the 142 artificial satellites in its class, representing a significant portion of human-made objects in orbit

## Body
### Launch and Classification
S3-1 was launched on October 29, 1974, marking a significant event in space exploration. This artificial satellite was placed into orbit using a Titan IIID launch vehicle, a model known for its reliability and capability in launching complex payloads.

### Identification and Aliases
The satellite is identified by several names and codes, including ST73-5A, 07499, and SESP P73-5. These multiple identifiers suggest that S3-1 played a role in various programs or had significance across different contexts within the space community.

### Technical Specifications
S3-1 carries the COSPAR ID 1974-085C and the NSSDCA ID 1974-085C, providing standardized identification for international space research and data cataloging purposes. The satellite also has an SCn value of 07499, as referenced in academic sources, which may relate to its specific technical characteristics or mission parameters.

### Historical Context
As one of 142 artificial satellites in its class, S3-1 represents a significant portion of human-made objects in Earth's orbit. Its launch in 1974 places it in a period of rapid advancement in space technology, contributing to the growing body of knowledge and experience in satellite operations and space exploration.

## References

1. Jonathan's Space Report