ADwT1
ADP parameter files
An .ADP parameters file is absolutely necessary for the data processing. This file has a similar function with the %param%.cig files in the old ADHOC DOS software.
This ADP parameters file has a copy which is an ADQ suffix file. If the ADP file is corrupted, the ADQ file replace it automatically. This avoids to loose the parameters file in case of disk or computer program.
The parameters of the ADP file can be changed by the user with the ADHOCw function A01.
The ADP parameter files contain the following informations :
Identification is a free ASCII text written by the user to recognize his observation.
Dimension of the cubes have no limitations. Z is usually the lambda dimension, which is often the number of channels.
Extraction corner is a user information which keeps track of a possible further extraction from a larger cube (all positions are numbered from 1).
Spectral information allows 2 modes : the Perot-Fabry mode and the Spectrography mode.
In the Perot-Fabry mode, you give the interference order of the interferometer relative to a given wavelength (which is completely disconnected from the "line" wavelengths or the "scanning" wavelengths). You must also give the line and scanning wavelengths for both calibration and object. When the user press the button "Update values", the interfringe values in Angstroems and in km/s are automatically computed. The wavelength of channel 1 is the reference wavelength for the de-phased cubes. This last parameter can be changed until the phase map computation.
In the Spectrography mode, the only useful parameters, which must be given by the user, are the length of the spectrum (in Angstroems) and the wavelength of the first spectral element. When the user press on the button "Update values", the length of the spectrum in km/s is computed.
Velocities are necessary to compute the correct radial velocities maps. The mean velocity of the objects allows the program to compute at every pixel the best interference order (avoids modulo) and the heliocentric radial velocity correction is relative to the date of he observation and the position of the object. This last value can be computed in the menu A of the program.
The image scale is useful for complex functions as dynamics. It can be changed at any time and many functions don't use this value, which can be let to 1. at the beginning.
Examples of ADP or ADQ ASCII files :
Dummy object
512 lx dimension X
512 ly dimension Y
27 lz dimension Z
1 ix0 corner X
1 iy0 corner Y
1 iz0 corner Z
1 modefp 1=PF,2=spectro
1162 p PF interference order
6562.7797852 xlp lmd reference p
6598.9531250 xleta lmd calibration line
6598.9531250 xlbeta lmd calibration scan
6562.7797852 xlneb lmd zero object
6571.6401367 xlbneb lmd object scan
5.6454387 xil spectral length/interfringe in Angstroems
6560.0000000 xl1 lmd channel 1
0.0000000 vr0 mean RV of the object in km/s
0.0000000 corrv heliocentric correction to add to measures in km/s
1.0000000 echelle scale ("/pix)
257.5000 xc center rings X
262.5000 yc center rings Y
1.0000000 ellipt X/Y pixel ratio
0 mode_c mode center/ellips of rings (0=normal; 1=enforced)
1 mode_e force ellips to 1 if CCD (0=normal; 1=enforced)
0.0000 min_a min angle for phase
360.0000 max_a max angle for phase
0.0000 min_r min radius for phase
99999.0000 max_r max radius for phase
0 alpha hours
0 alpha minutes
0.0000000 alpha seconds
0 delta degrees
0 delta minutes
0.0000000 alpha seconds
0.0000000 reference year
0.0000000 time minutes
0 time hours
0 time day
0 time month
0 time year
0 dummy
0 dummy
0 dummy
0 dummy
0 dummy
0.0000000 dummy
0.0000000 dummy
0.0000000 dummy
0.0000000 dummy
0.0000000 dummy
183 numcom last command number executed
Comment or information : boulesteix@observatoire.cnrs-mrs.fr
Note : all ADHOCw help is in HTML. The present HTML browser is a very simple browser incorporated to ADHOC. But the ADHOCw HTML help can be directly accessible to your favorite HTML browser (Netscape, IExplorer, ...) for extended operations (extraction of text or images, special printings, ...). The ADHOCw HTML help is located in the\adhocw\help\adhocw.htm file.
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