Timing X-ray Pulsars with Application to Spacecraft Navigation

Details Timing X-ray Pulsars with Application to Spacecraft Navigation Timing X-ray Pulsars with Application to Spacecraft Navigation

2010-11-23

arxiv.org/abs/1011.5095v1

Proceedings of High Time Resolution Astrophysics IV - The Era of Extremely Large Telescopes, PoS(HTRA-IV)050, 2010

Astronomy and Astrophysics

Astrophysics

High Energy Astrophysical Phenomena

5 pages, 2 figures, to be published in the proceedings of High Time Resolution Astrophysics IV - The Era of Extremely Large Te

Scientific paper

Usually, positions of spacecraft on interplanetary or deep space missions are determined by radar tracking from ground stations, a method by which uncertainty increases with distance from Earth. As an alternative, a spacecraft equipped with e.g. an X-ray telescope could determine its position autonomoulsy via onboard analysis of X-ray pulsar signals. In order to find out which pulsars are best suited for this approach and what accuracy can be achieved, we build up a database containing the temporal emission characteristics of the ~ 60 X-ray pulsars for which a pulsed radiation has been detected by mid 2010.

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