# Station Explorer for X-Ray Timing and Navigation (SEXTANT)

A 3D model from NASA/Christopher R. Meaney, [NASA](https://science.nasa.gov/3d-resources/station-explorer-for-x-ray-timing-and-navigation-sextant/).

- Licence: [Not subject to copyright in the United States (NASA)](https://www.nasa.gov/nasa-brand-center/images-and-media/)
- Credit: NASA/Christopher R. Meaney
- Model (GLB): [https://assets.science.nasa.gov/content/dam/science/cds/3d/resources/model/station-explorer-for-x-ray-timing-and-navigation-(sextant)/Station%20Explorer%20for%20X-Ray%20Timing%20and%20Navigation%20(SEXTANT).glb](https://assets.science.nasa.gov/content/dam/science/cds/3d/resources/model/station-explorer-for-x-ray-timing-and-navigation-(sextant)/Station%20Explorer%20for%20X-Ray%20Timing%20and%20Navigation%20(SEXTANT).glb)
- Not offered in your room: its source does not state the model's scale, so it could not be shown at its true size.

The Station Explorer for X-ray Timing and Navigation Technology (SEXTANT) is a technology-demonstration enhancement to the Neutron-star Interior Composition Explorer (NICER) mission. NICER is a NASA Explorer Mission of Opportunity that will be hosted on the International Space Station (ISS). SEXTANT will, for the first time, demonstrate real-time, on-board X-ray pulsar-based navigation (XNAV), a significant \[…\]