# Cygnus NG-11

> cargo resupply mission to the International Space Station

**Wikidata**: [Q27048770](https://www.wikidata.org/wiki/Q27048770)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Cygnus_NG-11)  
**Source**: https://4ort.xyz/entity/cygnus-ng-11

## Summary
Cygnus NG-11 was a cargo resupply mission to the International Space Station (ISS) conducted by Northrop Grumman under NASA's Commercial Resupply Services program. Launched in April 2019, it delivered critical supplies, scientific experiments, and CubeSats to the ISS, supporting ongoing research and operations. The spacecraft was named in honor of NASA astronaut Roger Chaffee.

## Key Facts
- **Launch Date**: April 17, 2019, at 20:46:07 UTC.
- **Launch Vehicle**: Antares rocket (10th Antares launch) from Mid-Atlantic Regional Spaceport Launch Pad 0A.
- **Spacecraft Type**: Enhanced Cygnus, manufactured by Northrop Grumman Innovation Systems and Thales Alenia Space.
- **Mission Duration**: Berthed with the ISS from April 19 to August 6, 2019.
- **Named After**: Roger Bruce Chaffee, a NASA astronaut who died in the Apollo 1 fire.
- **COSPAR ID**: 2019-022A; Satellite Catalog Number (SCN): 44188.
- **Preceded By**: Cygnus NG-10; **Followed By**: Cygnus NG-12.
- **Payload**: Included the ISS NanoRacks CubeSat Deployment Mission 16.

## FAQs
### Q: When was Cygnus NG-11 launched?
A: Cygnus NG-11 launched on April 17, 2019, at 20:46:07 UTC aboard an Antares rocket from Pad 0A at the Mid-Atlantic Regional Spaceport.

### Q: How long did the spacecraft stay at the ISS?
A: The spacecraft berthed with the ISS on April 19, 2019, and remained docked until its unberthing on August 6, 2019, spending approximately 3.5 months at the station.

### Q: What happened to Cygnus NG-11 after completing its mission?
A: After departing the ISS, the spacecraft re-entered Earth's atmosphere on December 6, 2019, at 15:28 UTC, intentionally burning up over the Pacific Ocean.

## Why It Matters
Cygnus NG-11 played a vital role in sustaining operations aboard the ISS by delivering essential cargo, including scientific experiments, crew supplies, and hardware. As part of NASA's Commercial Resupply Services program, the mission demonstrated the reliability of the Antares rocket and Cygnus spacecraft, reinforcing public-private partnerships in space logistics. The mission also supported nanosatellite deployment, contributing to advancements in Earth science, technology demonstrations, and educational research. By ensuring a continuous supply chain to the ISS, Cygnus NG-11 helped maintain the station's role as a hub for microgravity research and deep space exploration preparation.

## Notable For
- Named in tribute to NASA astronaut Roger Chaffee, honoring his legacy in space exploration.
- Carried CubeSats for deployment via the NanoRacks system, facilitating small-scale scientific and educational projects.
- Operated as part of the Enhanced Cygnus spacecraft class, featuring improved cargo capacity and efficiency compared to earlier models.
- Marked the 11th Cygnus mission and the 10th launch of the Antares rocket, highlighting the maturation of Northrop Grumman's cargo delivery system.

## Body
### Mission Overview
Cygnus NG-11, also designated CRS OA-11 or S.S. Roger Chaffee, was the 11th flight of the Cygnus spacecraft and the 10th Antares launch. It operated under NASA's Commercial Resupply Services (CRS) contract, delivering cargo to the ISS. The mission was crewed by the Expedition 59 and 60 crews.

### Launch and Berthing
- **Launch**: April 17, 2019, at 20:46:07 UTC from Mid-Atlantic Regional Spaceport Launch Pad 0A.
- **Berthing**: Attached to the Unity module's nadir port on April 19, 2019, at 11:30 UTC.
- **Unberthing**: Departed the ISS on August 6, 2019, at 13:30 UTC.

### Payload and Experiments
The spacecraft carried 3,450 kg of cargo, including:
- Scientific experiments (e.g., studies on bone formation and fluid dynamics).
- Crew supplies and vehicle hardware.
- The ISS NanoRacks CubeSat Deployment Mission 16, deploying several CubeSats for Earth observation, technology demonstrations, and educational projects.

### Post-Mission
After departing the ISS, Cygnus NG-11 raised its orbit to conduct a 2.5-month free-flight mission, testing spacecraft systems. It re-entered Earth's atmosphere on December 6, 2019, at 15:28 UTC, disintegrating over the Pacific Ocean.

## Schema Markup
```json
{
  "@context": "https://schema.org",
  "@type": "Thing",
  "name": "Cygnus NG-11",
  "description": "Cargo resupply mission to the International Space Station",
  "url": "https://en.wikipedia.org/wiki/Cygnus_NG-11",
  "sameAs": [
    "https://www.wikidata.org/wiki/Q6272367",
    "https://en.wikipedia.org/wiki/Cygnus_NG-11"
  ],
  "additionalType": "Spacecraft Mission"
}

## References

1. Jonathan's Space Report
2. [Source](https://planet4589.org/space/jsr/back/news.764.txt)
3. [Source](https://planet4589.org/space/jsr/back/news.768.txt)