caa a22 4500 445347481 CHVBK 20180317142833.0 cr unu---uuuuu 170323e20110701xx s 000 0 eng 10.1007/s11207-011-9800-z doi (NATIONALLICENCE)springer-10.1007/s11207-011-9800-z Straylight-Rejection Performance of the STEREO HI Instruments [Elektronische Daten] [J.-P. Halain, C. Eyles, A. Mazzoli, D. Bewsher, J. Davies, E. Mazy, P. Rochus, J. Defise, C. Davis, R. Harrison, S. Crothers, D. Brown, C. Korendyke, J. Moses, D. Socker, R. Howard, J. Newmark] The SECCHI Heliospheric Imager (HI) instruments on-board the STEREO spacecraft have been collecting images of solar wind transients, including coronal mass ejections, as they propagate through the inner heliosphere since the beginning of 2007. The scientific use of the images depends critically on the performance of the instruments and its evolution over time. One of the most important factors affecting the performance of the instrument is the rejection of straylight from the Sun and from other bright objects located both within and outside the HI fields of view. This paper presents an analysis of the evolution of the straylight-rejection performance of the HI instrument on each of the two STEREO spacecraft over the three first years of the mission. The straylight level has been evaluated and expressed in mean solar brightness units, in which such scientific observations are usually quoted, using photometric conversion factors. Springer Science+Business Media B.V., 2011 Straylight nationallicence Lens barrel rejection nationallicence Mean solar brightness nationallicence Off-pointing nationallicence Halain J.-P Centre Spatial de Liège, Université de Liège, avenue Pré Aily, 4031, Angleur, Belgium aut Eyles C. Laboratorio de Procesado de Imagenes, Universidad de Valencia, 46071, Valencia, Spain aut Mazzoli A. Centre Spatial de Liège, Université de Liège, avenue Pré Aily, 4031, Angleur, Belgium aut Bewsher D. Jeremiah Horrocks Institute, University of Central Lancashire, PR1 2HE, Preston, Lancashire, UK aut Davies J. RAL Space, STFC Rutherford Appleton Laboratory, Chilton, OX11 0QX, Didcot, Oxfordshire, UK aut Mazy E. Centre Spatial de Liège, Université de Liège, avenue Pré Aily, 4031, Angleur, Belgium aut Rochus P. Centre Spatial de Liège, Université de Liège, avenue Pré Aily, 4031, Angleur, Belgium aut Defise J. Institut d'Astrophysique et de Géophysique, Université de Liège, 4000, Liège, Belgium aut Davis C. RAL Space, STFC Rutherford Appleton Laboratory, Chilton, OX11 0QX, Didcot, Oxfordshire, UK aut Harrison R. RAL Space, STFC Rutherford Appleton Laboratory, Chilton, OX11 0QX, Didcot, Oxfordshire, UK aut Crothers S. RAL Space, STFC Rutherford Appleton Laboratory, Chilton, OX11 0QX, Didcot, Oxfordshire, UK aut Brown D. Jeremiah Horrocks Institute, University of Central Lancashire, PR1 2HE, Preston, Lancashire, UK aut Korendyke C. Space Science Division, Naval Research Laboratory, Washington, DC, USA aut Moses J. Space Science Division, Naval Research Laboratory, Washington, DC, USA aut Socker D. Space Science Division, Naval Research Laboratory, Washington, DC, USA aut Howard R. Space Science Division, Naval Research Laboratory, Washington, DC, USA aut Newmark J. Space Science Division, Naval Research Laboratory, Washington, DC, USA aut Solar Physics Springer Netherlands 271/1-2(2011-07-01), 197-218 0038-0938 271:1-2<197 2011 271 11207 https://doi.org/10.1007/s11207-011-9800-z text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11207-011-9800-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Halain J.-P Centre Spatial de Liège, Université de Liège, avenue Pré Aily, 4031, Angleur, Belgium aut NATIONALLICENCE 700 1- Eyles C. Laboratorio de Procesado de Imagenes, Universidad de Valencia, 46071, Valencia, Spain aut NATIONALLICENCE 700 1- Mazzoli A. Centre Spatial de Liège, Université de Liège, avenue Pré Aily, 4031, Angleur, Belgium aut NATIONALLICENCE 700 1- Bewsher D. Jeremiah Horrocks Institute, University of Central Lancashire, PR1 2HE, Preston, Lancashire, UK aut NATIONALLICENCE 700 1- Davies J. RAL Space, STFC Rutherford Appleton Laboratory, Chilton, OX11 0QX, Didcot, Oxfordshire, UK aut NATIONALLICENCE 700 1- Mazy E. Centre Spatial de Liège, Université de Liège, avenue Pré Aily, 4031, Angleur, Belgium aut NATIONALLICENCE 700 1- Rochus P. Centre Spatial de Liège, Université de Liège, avenue Pré Aily, 4031, Angleur, Belgium aut NATIONALLICENCE 700 1- Defise J. Institut d'Astrophysique et de Géophysique, Université de Liège, 4000, Liège, Belgium aut NATIONALLICENCE 700 1- Davis C. RAL Space, STFC Rutherford Appleton Laboratory, Chilton, OX11 0QX, Didcot, Oxfordshire, UK aut NATIONALLICENCE 700 1- Harrison R. RAL Space, STFC Rutherford Appleton Laboratory, Chilton, OX11 0QX, Didcot, Oxfordshire, UK aut NATIONALLICENCE 700 1- Crothers S. RAL Space, STFC Rutherford Appleton Laboratory, Chilton, OX11 0QX, Didcot, Oxfordshire, UK aut NATIONALLICENCE 700 1- Brown D. Jeremiah Horrocks Institute, University of Central Lancashire, PR1 2HE, Preston, Lancashire, UK aut NATIONALLICENCE 700 1- Korendyke C. Space Science Division, Naval Research Laboratory, Washington, DC, USA aut NATIONALLICENCE 700 1- Moses J. Space Science Division, Naval Research Laboratory, Washington, DC, USA aut NATIONALLICENCE 700 1- Socker D. Space Science Division, Naval Research Laboratory, Washington, DC, USA aut NATIONALLICENCE 700 1- Howard R. Space Science Division, Naval Research Laboratory, Washington, DC, USA aut NATIONALLICENCE 700 1- Newmark J. Space Science Division, Naval Research Laboratory, Washington, DC, USA aut NATIONALLICENCE 773 0- Solar Physics Springer Netherlands 271/1-2(2011-07-01), 197-218 0038-0938 271:1-2<197 2011 271 11207 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer