ISOCAM Interactive Analysis User's Manual Version 5.0 - ISO - ESA

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264 CHAPTER 20. ADVANCED DATA CALIBRATION Figure 20.8: Back projected pixel histories of the same source. Note how the signal is of the same averaged or idealized level.
20.15. ADVANCED PROJECTION 265 20.15.5 Distortion correction for staring, beam-switch and CVF observations Using the routines project struct, project bs and project cvf also the exposures of staring observation can be corrected for distortion. In the following example we discuss distortion correction for a staring observation. Beamswitch and CVF observations are treated in a similar way. Assuming the EXPOSURE in has been generated the usual way, it will have 32×32 pixels (see left picture in Figure 20.9). CIA> help, staring_pds.image FLOAT = Array[32, 32] Distortion-correction and magnification by the factor 2 will be performed by the following command: CIA> project_struct, staring_pds, magnify=2 The resulting EXPOSURE has now 67×65 pixels CIA> help, staring_pds.image FLOAT = Array[67, 65] Additionally, the original fields .IMAGE, .RMS and .NPIX were renamed to .OLD IMAGE, .OLD RMS and .OLD NPIX, while .RMS and .NPIX contain now information corresponding to .IMAGE. As usual, export to a FITS file is done with CIA’s imagette2fits. This routine will place the data in the PDS field .IMAGE into the primary array of the FITS file. Figure 20.9: Comparison of standard vs. distortion corrected staring observations Left: Standard 32×32 EXPOSURE Right: Distortion-corrected and magnified EXPOSURE (67×65 pixels). Due the rebinning of the pixels, the flux per pixel is reduced by the factor 4.
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ISOCAM Interactive Analysis User’
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Michael Rupen (NRAO) Jaqui Sam Lone
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vi CONTENTS 8 Polarization observat
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viii CONTENTS 14.4.6 x3d as a calib
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x CONTENTS 19.3 A beam-switch obser
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xii CONTENTS B CIA command short-li
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xiv CONTENTS
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xvi LIST OF FIGURES 14.13The raster
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xviii LIST OF FIGURES
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xx LIST OF TABLES
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2 CHAPTER 1. ABOUT THE CIA USER’S
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4 CHAPTER 2. ABOUT CIA 2.2 System r
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6 CHAPTER 2. ABOUT CIA Figure 2.2:
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8 CHAPTER 2. ABOUT CIA In addition,
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10 CHAPTER 2. ABOUT CIA 2.3.4 Custo
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12 CHAPTER 2. ABOUT CIA LOG Log fil
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14 CHAPTER 2. ABOUT CIA This will p
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16 CHAPTER 2. ABOUT CIA % device, p
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18 CHAPTER 2. ABOUT CIA
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Introduction The Quick Start Guide
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24 CHAPTER 3. RASTER OBSERVATION (C
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32 CHAPTER 4. STARING OBSERVATION (
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34 CHAPTER 4. STARING OBSERVATION (
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36 CHAPTER 5. SOLAR SYSTEM OBJECT O
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42 CHAPTER 6. BEAM-SWITCH OBSERVATI
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48 CHAPTER 7. CVF OBSERVATION (CAM0
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50 CHAPTER 7. CVF OBSERVATION (CAM0
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52 CHAPTER 8. POLARIZATION OBSERVAT
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Introduction The purpose of Part II
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62 CHAPTER 9. THE DATA PRODUCTS AND
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68 CHAPTER 10. FIRST LOOK AT THE DA
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74 CHAPTER 11. INTRODUCTION TO CIA
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76 CHAPTER 11. INTRODUCTION TO CIA
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78 CHAPTER 12. DATA SLICING 3. At t
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80 CHAPTER 12. DATA SLICING CIA> ns
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82 CHAPTER 12. DATA SLICING equal t
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84 CHAPTER 12. DATA SLICING OR CIA>
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86 CHAPTER 12. DATA SLICING 70 16.0
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88 CHAPTER 12. DATA SLICING • Sel
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90 CHAPTER 12. DATA SLICING We sugg
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92 CHAPTER 12. DATA SLICING title d
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94 CHAPTER 12. DATA SLICING • Sel
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96 CHAPTER 13. DATA CALIBRATION 13.
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98 CHAPTER 13. DATA CALIBRATION •
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100 CHAPTER 13. DATA CALIBRATION 13
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104 CHAPTER 13. DATA CALIBRATION Fi
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106 CHAPTER 13. DATA CALIBRATION au
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108 CHAPTER 13. DATA CALIBRATION 2.
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114 CHAPTER 14. IMAGE ANALYSIS AND
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Introduction The purpose of this pa
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Chapter 15 CIA data structure high-
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15.2. OBSERVATION DATA STRUCTURES 1
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15.3. CALIBRATION DATA STRUCTURE (C
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15.4. AUXILIARY CALIBRATION DATA 17
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15.4. AUXILIARY CALIBRATION DATA 17
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15.5. PREPARED DATA STRUCTURE (PDS)
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Chapter 16 Data structure manipulat
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16.1. CIA DATA STRUCTURE INTERFACE
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16.1. CIA DATA STRUCTURE INTERFACE
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16.2. AN EXAMPLE OF SAD MANIPULATIO
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16.4. MANIPULATING THE MASK 195 and
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16.5. CDS DATA EXTRACTION 197 16.5
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16.6. MANIPULATING CIA DATA STRUCTU
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Chapter 17 Importing ISO data produ
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17.2. IMPORTING FITS TO REGULAR IDL
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Chapter 18 Export of CIA data struc
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18.3. EXPORT FOR ARCHIVING 207 CIA>
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Part IV Advanced Use of CIA 209
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212
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Page 250 and 251: 230 CHAPTER 19. ADVANCED SLICING
Page 252 and 253: 232 CHAPTER 20. ADVANCED DATA CALIB
Page 294 and 295: 274 CHAPTER 21. USING SLICE WITHIN
Page 314 and 315: 294 CHAPTER 22. SECOND ORDER CORREC
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Page 318 and 319: 298 CHAPTER 23. X CIA REFERENCE GUI
Page 326 and 327: 306 APPENDIX A. GLOSSARY beam-switc
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Page 332 and 333: 312 APPENDIX A. GLOSSARY
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314 APPENDIX B. CIA COMMAND SHORT-L
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320 APPENDIX C. THE ISO CD-ROM C.2.
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322 APPENDIX C. THE ISO CD-ROM Vari
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324 APPENDIX D. GUIDELINES FOR WRIT
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326 APPENDIX D. GUIDELINES FOR WRIT
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328 APPENDIX E. ISOCAM ASTROMETRY:
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338 APPENDIX F. WHAT IS NEW IN CIA
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344 APPENDIX G. WARNING MESSAGES IN
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346 APPENDIX H. PATCHED ASTROLIB AN
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348 APPENDIX I. UPGRADING OLD CIA S
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350 APPENDIX I. UPGRADING OLD CIA S
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352 APPENDIX J. REPORTING PROBLEMS
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354 APPENDIX K. TECHNICAL REPORTS S
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356 BIBLIOGRAPHY Okumura K., 1998,
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