On the Possibility of Improving the Orbits of Satellites Based on Observations of Isolated X-ray Pulsars
| Autor: | Revnivtsev, M. G., Gadzhily, O. E., Lutovinov, A. A., Molkov, S. V., Arefiev, V. A., Pavlinsky, M. N., Tuchin, A. G. |
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| Rok vydání: | 2015 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1134/S106377371508006X |
| Popis: | At present, there is a great worldwide interest in the development of technologies that allow information about the X-ray emission from pulsating cosmic sources to be used to obtain navigation solutions for deep-space spacecraft. In this paper, we illustrate the technique for determining the spatial position of a spacecraft based on the already existing data from the RXTE X-ray space observatory. We show that the spacecraft position toward the Crab pulsar can be determined using an X-ray detector with an effective area of about 0.6 sq.m in the energy range 3-15 keV with an accuracy up to 730 m in a signal integration time of 1000 s. Extending the energy range to 1 keV (the efficiency of the RXTE/PCA spectrometer decreases dramatically at energies below 3 keV) will allow a spacecraft position accuracy of 400-450 m to be achieved at the same effective area and up to 300-350 m when using detectors with an effective area of ~1 sq.m in the energy range 1-10 keV. Comment: 5 pages, 5 figures, will be published in Astronomy Letters, 2015, V.41, N.8, P.450-455 |
| Databáze: | arXiv |
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