# B1045

> expended Falcon 9 first-stage booster

**Wikidata**: [Q55372093](https://www.wikidata.org/wiki/Q55372093)  
**Source**: https://4ort.xyz/entity/b1045

## Summary
B1045 was an expended first-stage booster for the Falcon 9 rocket, manufactured by SpaceX in the United States. Designated as part of the Falcon 9 Block 4 version, it successfully completed two missions in 2018—the launch of the TESS satellite and the SpaceX CRS-15 resupply mission—before being expended on June 29, 2018.

## Key Facts
- **Classification:** Falcon 9 Block 4 first-stage booster.
- **Manufacturer:** SpaceX.
- **Country of Origin:** United States.
- **Serial Number:** B1045.
- **Predecessor:** B1044.
- **Successor:** B1046.
- **Mission 1:** Launched the Transiting Exoplanet Survey Satellite (TESS) on April 18, 2018.
- **Mission 2:** Launched the SpaceX CRS-15 mission on June 29, 2018.
- **Final Status:** Expended (dissolved/destroyed) on June 29, 2018.
- **Aliases:** Falcon 9 B1045, SpaceX Falcon 9 B1045.

## FAQs
### Q: What missions did the B1045 booster fly?
A: B1045 was used for two primary launches: the Transiting Exoplanet Survey Satellite (TESS) on April 18, 2018, and the SpaceX CRS-15 cargo resupply mission to the International Space Station on June 29, 2018.

### Q: Was the B1045 booster recovered after launch?
A: No, B1045 was an "expended" booster, meaning it was not recovered after its final mission. It was officially dissolved or destroyed on June 29, 2018.

### Q: What version of the Falcon 9 rocket was B1045?
A: B1045 was an instance of the Falcon 9 Block 4, which is the fourth major version of the Falcon 9 rocket series.

## Why It Matters
B1045 represents a specific phase in the evolution of SpaceX's launch vehicle technology. As a Falcon 9 Block 4 booster, it served as a bridge between earlier iterations and the final "Block 5" design that followed with its successor, B1046. The booster played a critical role in advancing space science and logistics during its operational lifespan in early 2018.

Its first mission successfully deployed the Transiting Exoplanet Survey Satellite (TESS), a significant NASA astrophysics mission designed to search for exoplanets. Its second and final mission, SpaceX CRS-15, contributed to the resupply of the International Space Station, demonstrating the booster's reliability for high-payload deliveries. By executing these missions sequentially within a two-month window, B1045 demonstrated the increasing operational cadence of SpaceX's hardware capabilities before being intentionally expended.

## Notable For
- **Scientific Contribution:** Successfully launched the TESS satellite, a major NASA mission for exoplanet discovery.
- **ISS Resupply:** Facilitated the SpaceX CRS-15 mission, essential for International Space Station logistics.
- **Block 4 Architecture:** Served as a key example of the Falcon 9 Block 4 class, the fourth major version of the rocket.
- **Sequential Numbering:** Maintained the continuity of SpaceX booster serial numbers between B1044 and B1046.

## Body

### Manufacturer and Origin
B1045 was a first-stage booster manufactured by **SpaceX** in the **United States**. It carried the serial number **B1045** and is officially classified as an "instance of" a **Falcon 9 booster**, **Falcon 9 Block 4**, and a **former entity**.

### Mission History
The booster's operational history is defined by two significant launch events recorded in 2018:

*   **April 18, 2018:** B1045 executed a rocket launch carrying the **Transiting Exoplanet Survey Satellite (TESS)**.
*   **June 29, 2018:** B1045 executed its final rocket launch for the **SpaceX CRS-15** mission.

### Fate and Sequencing
Following the CRS-15 mission on June 29, 2018, the booster was **expended**. In the sequence of SpaceX booster production, B1045 follows **B1044** and precedes **B1046**.

## Schema Markup
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