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

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328 APPENDIX E. ISOCAM ASTROMETRY: ANGLES AND COORDINATES N Y+ α E Column 24 Z+ Figure E.1: Schematic of an ISOCAM-LW image. Y+ and Z+ are the satellite axes. Column 24 is indicated to help you visualize the array. α, called the roll angle, is the position angle of the Z+ axis, i.e. the angle between the celestial North and the Z+ axis, counted positively eastward. • We assume that you have already used CIA and are quite familiar with its structure organization and basic routines. E.1.1 Definition of the roll angle for CAM-LW The roll angle for ISOCAM’s LW detector is defined in Figure E.1. Note that while this diagram is correct, the orientation of your display can change the direction in which the axes point. In IDL, the orientation of a displayed image depends on the system variable !ORDER. Refer to Section E.2.3 for different axis orientations and the effects of !ORDER. E.1.2 Rasters along the satellite axes These rasters are called for simplicity’s sake ‘Y-axis’ rasters and an example is given in Figure E.2. The sky is scanned along the satellite Y and Z axis. The raster axes are called M+ and N+ and the referential (M,N) is direct. In that referential ISO always starts its raster at the lower left corner. The number of points in the M direction of the raster are held in the raster PDS field .RASTERCOL, which takes its value from the FITS keyword ATTRNPTS. The raster pds field .M STEPCOL (or the FITS keyword ATTRDPTS) gives the distance between adjacent columns in arcsecs. Likewise, the number of points in the N direction of the raster are held in the in the raster PDS field .RASTERLINE, which takes its value from the FITS keyword ATTRNLNS. The raster pds field .N STEPLINE (or the FITS keyword ATTRDLNS) gives the distance between adjacent lines in arcsecs.
E.1. DEFINITIONS 329 North N+ End East β N direction of the raster Start Y+ = M+ n M direction of the raster Z+ α y Figure E.2: Schematic of a Y-axis raster. Crosses, ×, mark successive positions of the raster. The start and end points are also indicated. The LW detector, with its 24th column marked, are shown on one position of the raster. The trajectory of ISO during the raster is shown by the broken line. This is a diagram of a M=7, N=5 raster.
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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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214 CHAPTER 19. ADVANCED SLICING 19
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216 CHAPTER 19. ADVANCED SLICING Fi
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226 CHAPTER 19. ADVANCED SLICING va
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228 CHAPTER 19. ADVANCED SLICING Fo
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230 CHAPTER 19. ADVANCED SLICING
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232 CHAPTER 20. ADVANCED DATA CALIB
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274 CHAPTER 21. USING SLICE WITHIN
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276 CHAPTER 21. USING SLICE WITHIN
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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
Page 328 and 329: 308 APPENDIX A. GLOSSARY FITS (data
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Page 334 and 335: 314 APPENDIX B. CIA COMMAND SHORT-L
Page 340 and 341: 320 APPENDIX C. THE ISO CD-ROM C.2.
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Page 344 and 345: 324 APPENDIX D. GUIDELINES FOR WRIT
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Page 358 and 359: 338 APPENDIX F. WHAT IS NEW IN CIA
Page 364 and 365: 344 APPENDIX G. WARNING MESSAGES IN
Page 366 and 367: 346 APPENDIX H. PATCHED ASTROLIB AN
Page 368 and 369: 348 APPENDIX I. UPGRADING OLD CIA S
Page 370 and 371: 350 APPENDIX I. UPGRADING OLD CIA S
Page 372 and 373: 352 APPENDIX J. REPORTING PROBLEMS
Page 374 and 375: 354 APPENDIX K. TECHNICAL REPORTS S
Page 376 and 377: 356 BIBLIOGRAPHY Okumura K., 1998,
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