The STIX Aspect System (SAS): The Optical Aspect System of the Spectrometer/Telescope for Imaging X-Rays (STIX) on Solar Orbiter
dc.bibliographicCitation.firstPage | 90 | eng |
dc.bibliographicCitation.journalTitle | Solar physics : a journal for solar and solar-stellar research and the study of solar terrestrial physics | eng |
dc.contributor.author | Warmuth, A. | |
dc.contributor.author | Önel, H. | |
dc.contributor.author | Mann, G. | |
dc.contributor.author | Rendtel, J. | |
dc.contributor.author | Strassmeier, K.G. | |
dc.contributor.author | Denker, C. | |
dc.contributor.author | Hurford, G.J. | |
dc.contributor.author | Krucker, S. | |
dc.contributor.author | Anderson, J. | |
dc.contributor.author | Bauer, S.-M. | |
dc.contributor.author | Bittner, W. | |
dc.contributor.author | Dionies, F. | |
dc.contributor.author | Paschke, J. | |
dc.contributor.author | Plüschke, D. | |
dc.contributor.author | Sablowski, D.P. | |
dc.contributor.author | Schuller, F. | |
dc.contributor.author | Senthamizh Pavai, V. | |
dc.contributor.author | Woche, M. | |
dc.contributor.author | Casadei, D. | |
dc.contributor.author | Kögl, S. | |
dc.contributor.author | Arnold, N.G. | |
dc.contributor.author | Gröbelbauer, H.-P. | |
dc.contributor.author | Schori, D. | |
dc.contributor.author | Wiehl, H.J. | |
dc.contributor.author | Csillaghy, A. | |
dc.contributor.author | Grimm, O. | |
dc.contributor.author | Orleanski, P. | |
dc.contributor.author | Skup, K.R. | |
dc.contributor.author | Bujwan, W. | |
dc.contributor.author | Rutkowski, K. | |
dc.contributor.author | Ber, K. | |
dc.date.accessioned | 2021-07-22T13:13:06Z | |
dc.date.available | 2021-07-22T13:13:06Z | |
dc.date.issued | 2020 | |
dc.description.abstract | The Spectrometer/Telescope for Imaging X-rays (STIX) is a remote sensing instrument on Solar Orbiter that observes the hard X-ray bremsstrahlung emission of solar flares. This paper describes the STIX Aspect System (SAS), a subunit that measures the pointing of STIX relative to the Sun with a precision of ±4′′, which is required to accurately localize the reconstructed X-ray images on the Sun. The operating principle of the SAS is based on an optical lens that images the Sun onto a plate that is perforated by small apertures arranged in a cross-shaped configuration of four radial arms. The light passing through the apertures of each arm is detected by a photodiode. Variations of spacecraft pointing and of distance from the Sun cause the solar image to move over different apertures, leading to a modulation of the measured lightcurves. These signals are used by ground analysis to calculate the locations of the solar limb, and hence the pointing of the telescope. | eng |
dc.description.version | publishedVersion | eng |
dc.identifier.uri | https://oa.tib.eu/renate/handle/123456789/6316 | |
dc.identifier.uri | https://doi.org/10.34657/5363 | |
dc.language.iso | eng | eng |
dc.publisher | Dordrecht [u.a.] : Springer Science + Business Media B.V | eng |
dc.relation.doi | https://doi.org/10.1007/s11207-020-01660-w | |
dc.relation.essn | 1573-093X | |
dc.relation.issn | 0038-0938 | |
dc.rights.license | CC BY 4.0 Unported | eng |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | eng |
dc.subject.ddc | 530 | eng |
dc.subject.ddc | 520 | eng |
dc.subject.other | Corona | eng |
dc.subject.other | Flares, spectrum | eng |
dc.subject.other | Instrumentation and data management | eng |
dc.subject.other | X-ray bursts, spectrum | eng |
dc.title | The STIX Aspect System (SAS): The Optical Aspect System of the Spectrometer/Telescope for Imaging X-Rays (STIX) on Solar Orbiter | eng |
dc.type | Article | eng |
dc.type | Text | eng |
tib.accessRights | openAccess | eng |
wgl.contributor | AIP | eng |
wgl.subject | Physik | eng |
wgl.type | Zeitschriftenartikel | eng |
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