Sextant X-Ray Pulsar Navigation Demonstration: Initial On-Orbit Results

Abstract : 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. SEXTANT will be a first demonstration of in-space, autonomous, X-ray pulsar navigation (XNAV). Navigating using millisecond X-ray pulsars which could provide a GPS-like navigation capability available throughout our Solar System and beyond. NICER is a NASA Astrophysics Explorer Mission of Opportunity to the International Space Station that was launched and installed in June of 2017. During NICER's nominal 18-month base mission, SEXTANT will perform a number of experiments to demonstrate XNAV and advance the technology on a number of fronts. In this work, we review the SEXTANT, its goals, and present early results from SEXTANT experiments conducted in the first six months of operation. With these results, SEXTANT has made significant progress toward meeting its primary and secondary mission goals. We also describe the SEXTANT flight operations, calibration activities, and initial results.
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https://hal-insu.archives-ouvertes.fr/insu-02176453
Contributor : Nathalie Pothier <>
Submitted on : Monday, July 8, 2019 - 11:14:13 AM
Last modification on : Friday, August 2, 2019 - 2:30:10 PM

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  • HAL Id : insu-02176453, version 1

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Jason Mitchel, Luke Winternitz, Munther Hassouneh, Samuel Price, Sean Semper, et al.. Sextant X-Ray Pulsar Navigation Demonstration: Initial On-Orbit Results. 41st Annual American Astronautical Society, Feb 2018, Breckenridge, United States. ⟨insu-02176453⟩

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