Parameters of ccdproc:
| images | = | ``'' | List of CCD images to correct |
| (ccdtype | = | ``object'') | CCD image type to correct |
| (max_cache | = | 0) | Maximum image caching memory (in Mbytes) |
| (noproc | = | no) | List processing steps only? |
| (fixpix | = | no) | Fix bad CCD lines and columns? |
| (overscan | = | yes) | Apply overscan strip correction? |
| (trim | = | yes) | Trim the image? |
| (zerocor | = | no) | Apply zero level correction? |
| (darkcor | = | no) | Apply dark count correction? |
| (flatcor | = | no) | Apply flat field correction? |
| (illumcor | = | no) | Apply illumination correction? |
| (fringecor | = | no) | Apply fringe correction? |
| (readcor | = | no) | Convert zero level image to readout correction? |
| (scancor | = | no) | Convert flat field image to scan correction? |
| (readaxis | = | ``line'') | Read out axis (column|line) |
| (fixfile | = | ``'') | File describing the bad lines and columns |
| (biassec | = | ``[5:45,10:1100]'') | Overscan strip image section |
| (trimsec | = | ``[49:1075,1:1024]'') | Trim data section |
| (zero | = | ``'') | Zero level calibration image |
| (dark | = | ``'') | Dark count calibration image |
| (flat | = | ``'') | Flat field images |
| (illum | = | ``'') | Illumination correction images |
| (fringe | = | ``'') | Fringe correction images |
| (minreplace | = | 1.) | Minimum flat field value |
| (scantype | = | ``shortscan'') | Scan type (shortscan|longscan) |
| (nscan | = | 1) | Number of short scan lines |
| (interactive | = | no) | Fit overscan interactively? |
| (function | = | ``legendre'') | Fitting function |
| (order | = | 1) | Number of polynomial terms or spline pieces |
| (sample | = | ``*'') | Sample points to fit |
| (naverage | = | 1) | Number of sample points to combine |
| (niterate | = | 1) | Number of rejection iterations |
| (low_reject | = | 3.) | Low sigma rejection factor |
| (high_reject | = | 3.) | High sigma rejection factor |
| (grow | = | 0.) | Rejection growing radius |
| (mode | = | ``ql'') |
Parameters of apscatter:
| input | = | ``'' | List of input images to subtract scattered ligh |
| output | = | ``'' | List of output corrected images |
| (scatter | = | ``'') | List of scattered light images (optional) |
| (references | = | ``'') | List of aperture reference images |
| (interactive | = | yes) | Run task interactively? |
| (find | = | see Note 1) | Find apertures? |
| (recenter | = | no) | Recenter apertures? |
| (resize | = | no) | Resize apertures? |
| (edit | = | no) | Edit apertures? |
| (trace | = | no) | Trace apertures? |
| (fittrace | = | yes) | Fit the traced points interactively? |
| (subtract | = | yes) | Subtract scattered light? |
| (smooth | = | yes) | Smooth scattered light along the dispersion? |
| (fitscatter | = | yes) | Fit scattered light interactively? |
| (fitsmooth | = | yes) | Smooth the scattered light interactively? |
| (line | = | INDEF) | Dispersion line |
| (nsum | = | 10) | Number of dispersion lines to sum or median |
| (buffer | = | 1.) | Buffer distance from apertures |
| (apscat1 | = | ``'') | Fitting parameters across the dispersion |
| (apscat2 | = | ``'') | Fitting parameters along the dispersion |
| (mode | = | ``ql'') |
Parameters of apscat1:
| (function | = | "legendre") | Fitting function |
| (order | = | see Note 2) | Order of fitting function |
| (sample | = | "*") | Sample points to use in fit |
| (naverage | = | 1) | Number of points in sample averaging |
| (low_reject | = | 1.) | Low rejection in sigma of fit |
| (high_reject | = | 0.75) | High rejection in sigma of fit |
| (niterate | = | 5) | Number of rejection iterations |
| (grow | = | 0.) | Rejection growing radius in pixels |
| (mode | = | "ql") |
Parameters of apscat2:
| (function | = | "legendre") | Fitting function |
| (order | = | see Note 3) | Order of fitting function |
| (sample | = | "*") | Sample points to use in fit |
| (naverage | = | 1) | Number of points in sample averaging |
| (low_reject | = | 3.) | Low rejection in sigma of fit |
| (high_reject | = | 3.) | High rejection in sigma of fit |
| (niterate | = | 1) | Number of rejection iterations |
| (grow | = | 0.) | Rejection growing radius in pixels |
| (mode | = | "ql") |
1 If you have defined and traced the apertures with apall, you have to put ``no'' for this parameter. In the contrary case, you have to put ``yes''
2 Between 3-7
3 Between 11-17
Parameters of apflatten:
| input | = | List of images to flatten | |
| output | = | List of output flatten images | |
| (references | = | "") | List of reference images |
| (interactive | = | yes) | Run task interactively? |
| (find | = | yes) | Find apertures? |
| (recenter | = | yes) | Recenter apertures? |
| (resize | = | yes) | Resize apertures? |
| (edit | = | yes) | Edit apertures? |
| (trace | = | yes) | Trace apertures? |
| (fittrace | = | yes) | Fit traced points interactively? |
| (flatten | = | yes) | Flatten spectra? |
| (fitspec | = | yes) | Fit normalization spectra interactively? |
| (line | = | INDEF) | Dispersion line |
| (nsum | = | 10) | Number of dispersion lines to sum or median |
| (threshold | = | 10.) | Threshold for flattening spectra |
| (background | = | "none") | Background to subtract |
| (pfit | = | "fit1d") | Profile fitting type (fit1d|fit2d) |
| (clean | = | no) | Detect and replace bad pixels? |
| (skybox | = | 1) | Box car smoothing length for sky |
| (saturation | = | INDEF) | Saturation level |
| (readnoise | = | "0.") | Read out noise sigma (photons) |
| (gain | = | "1.") | Photon gain (photons/data number) |
| (lsigma | = | 4.) | Lower rejection threshold |
| (usigma | = | 4.) | Upper rejection threshold |
| (function | = | "legendre") | Fitting function for normalization spectra |
| (order | = | 1) | Fitting function order |
| (sample | = | "*") | Sample regions |
| (naverage | = | 1) | Average or median |
| (niterate | = | 0) | Number of rejection iterations |
| (low_reject | = | 3.) | Lower rejection sigma |
| (high_reject | = | 3.) | High upper rejection sigma |
| (grow | = | 0.) | Rejection growing radius |
| (mode | = | "q") |
Parameters of apall:
| PACKAGE= specred | |||
| TASK=apall | |||
| input | = | List of input images | |
| nfind | = | see Table III | Number of apertures to be found automatically |
| (output | = | ``'') | List of output spectra |
| (format | = | ``multispec'') | Extracted spectra format |
| (references | = | see Note 1 | List of aperture reference images |
| (profiles | = | ``'') | List of aperture profile images |
| (interactive | = | yes) | Run task interactively? |
| (find | = | yes) | Find apertures? |
| (recenter | = | see Note 1) | Recenter apertures? |
| (resize | = | no) | Resize apertures? |
| (edit | = | yes) | Edit apertures? |
| (trace | = | yes) | Trace apertures? |
| (fittrace | = | yes) | Fit the traced points interactively? |
| (extract | = | see Note 2) | Extract spectra? |
| (extras | = | no) | Extract sky, sigma, etc.? |
| (review | = | yes) | Review extractions? |
| (line | = | INDEF) | Dispersion line |
| (nsum | = | 10) | Number of dispersion lines to sum or median |
| (lower | = | see Table III) | Lower aperture limit relative to center |
| (upper | = | see Table III) | Upper aperture limit relative to center |
| (apidtable | = | ``'') | Aperture ID table (optional) |
DEFAULT BACKGROUND
| (b_function | = | ``chebyshev'') | Background function |
| (b_order | = | 2) | Background function order |
| (b_sample | = | see Table III) | Background sample regions |
| (b_naverage | = | 2) | Background average or median |
| (b_niterate | = | 0) | Background rejection iterations |
| (b_low_reject | = | 3.) | Background lower rejection sigma |
| (b_high_rejec | = | 3.) | Background upper rejection sigma |
| (b_grow | = | 0.) | Background rejection growing radius |
APERTURES PARAMETERS
| (width | = | see Table III) | Profile centering width |
| (radius | = | 2.) | Profile centering radius |
| (threshold | = | 0.) | Detection threshold for profile centering |
| (minsep | = | see Table III) | Minimum separation between spectra |
| (maxsep | = | see Table III) | Maximum separation between spectra |
| (order | = | see Table III) | Order of apertures |
1 The name of the reference image. Firtly, Identify the apertures with a flat image. You can use this image like reference for other images. In the case of objects with low signal-noise ratio, you can need the reference image for extract the object. But, if the signal-noise ratio of the object is high you have to put recenter=yes. In whichever case, the good stability of INTEGRAL-WYFFOS guarantee that large offsets between the images during the night
2 In order to extract the apertures, you have to put ``yes'' in this parameter. But if you want only to define and to trace the apertures you have to put ``no''
RECENTERING PARAMETERS
| (apertures | = | ``'') | Select apertures |
| (npeaks | = | ( see Table III)) | Select brightest peaks |
| (shift | = | yes) | Use average shift instead of recentering? |
| (llimit | = | see Table III) | Lower aperture limit relative to center |
| (ulimit | = | see Table III) | Upper aperture limit relative to center |
| (ylevel | = | 0.1) | Fraction of peak or intensity for automatic wid |
| (peak | = | yes) | Is ylevel a fraction of the peak? |
| (bkg | = | yes) | Subtract background in automatic width? |
| (r_grow | = | 0.) | Grow limits by this factor |
| (avglimits | = | yes) | Average limits over all apertures? |
TRACING PARAMETERS
| (t_nsum | = | see Table III) | Number of dispersion lines to sum |
| (t_step | = | see Table III) | Tracing step |
| (t_nlost | = | 3) | Number of consecutive times profile is lost bef |
| (t_function | = | ``legendre'') | Trace fitting function |
| (t_order | = | see Table III) | Trace fitting function order |
| (t_sample | = | ``*'') | Trace sample regions |
| (t_naverage | = | 1) | Trace average or median |
| (t_niterate | = | 0) | Trace rejection iterations |
| (t_low_reject | = | 3.) | Trace lower rejection sigma |
| (t_high_rejec | = | 3.) | Trace upper rejection sigma |
| (t_grow | = | 0.) | Trace rejection growing radius |
EXTRACTION PARAMETERS
| (background | = | see Note 3) | Background to subtract |
| (skybox | = | 1) | Box car smoothing length for sky |
| (weights | = | see Note 4) | Extraction weights (none|variance) |
| (pfit | = | ``fit1d'') | Profile fitting type (fit1d|fit2d) |
| (clean | = | no) | Detect and replace bad pixels? |
| (saturation | = | INDEF) | Saturation level |
| (readnoise | = | see Note 5) | Read out noise sigma (photons) |
| (gain | = | see Note 6) | Photon gain (photons/data number) |
| (lsigma | = | 3.) | Lower rejection threshold |
| (usigma | = | 3.) | Upper rejection threshold |
| (nsubaps | = | 1) | Number of subapertures per aperture |
| (mode | = | ``ql'') |
3 For the bundle SB3, you can put ``yes''
4 For the bundle SB3, put ``variance''
5 Edit the header of the image with hselect to show this parameter
6 Edit the header of the image with hselect to show this parameter
| Parameter | Bundle | Reduction Step | Value/s |
| nfind | SB1 | always | 175 |
| SB2 | always | 189 | |
| SB3 | always | 115 | |
| lower | SB1 | for | -0.5 |
| SB2 | scattered light | -0.5 | |
| SB3 | correction | -0.5 | |
| upper | SB1 | for | 0.5 |
| SB2 | scattered light | 0.5 | |
| SB3 | correction | 0.5 | |
| lower | SB1 | for | -1.4 |
| SB2 | extraction | -1.6 | |
| SB3 | -2.5 | ||
| upper | SB1 | for | 1.4 |
| SB2 | extraction | 1.6 | |
| SB3 | 2.5 | ||
| b_sample | SB1 | always | ``-3:-1,1:3'' |
| SB2 | always | ``-4:-1,1:4'' | |
| SB3 | always | ``-5:-2,2:5'' | |
| width | SB1 | always | 2.8 |
| SB2 | always | 3.2 | |
| SB3 | always | 5.0 | |
| minsep | SB1 | always | 4.0 |
| SB2 | always | 4.0 | |
| SB3 | always | 6.5 | |
| maxsep | SB1 | always | 8.5 |
| SB2 | always | 5.0 | |
| SB3 | always | 10.0 | |
| order | SB1 | always | ``decreasing'' |
| SB2 | always | ``increasing'' | |
| SB3 | always | ``decreasing'' | |
| npeaks | SB1 | always | 174 |
| SB2 | always | 188 | |
| SB3 | always | 115 | |
| llimit | SB1 | always | -1.4 |
| SB2 | always | -1.6 | |
| SB3 | always | -2.5 | |
| ulimit | SB1 | always | 1.4 |
| SB2 | always | 1.6 | |
| SB3 | always | 2.5 | |
| t_nsum | SB1 | always | 15 |
| SB2 | always | 15 | |
| SB3 | always | 10 | |
| t_step | SB1 | always | 15 |
| SB2 | always | 15 | |
| SB3 | always | 10 | |
| t_order | SB1 | for all the | 17-21 |
| SB2 | wavelenght | 17-21 | |
| SB3 | range | 11-17 |