Default Values.

 
For each combination of telescope/camera that you have, you can create a file with default values.
They are placed in the folder ./ini 

The default value file used at startup is indicated in the AstroPie.ini file in the root folder. When cloning the repositry it will point to ./ini/Example.ini
There are some other .ini files as example in the folder
  
 
Changes to it are done via the dedicated Default Values screen, accessible via the DashBoard (upper right button).
 
 
 
Switching between and creating new .ini files for default values of another telescope/camera combination is done with buttons in the upper part of the screen
 
 

 

 
Danger : if a parameter points to a folder with a drive letter that does not exist, you'll get an error message. That can happen if you work on an external drive and it changes its letter. Easiest is to change the drive letter of the disk itself, instead of changing this defaults file.
 
## Observer Code
 
observercode=VYP
The obsercode to use when creating extract files for the AAVSO.
 
 
## Camera Related settings
 
Camera = an identification of your camera. Just for information.
 
Cellsize
Around each star a square is used to work on it, containing the aperture and the annulus around the star. It depends on your setup how big this cellsize should be. Do not take it too small, do not take it too big. 
You can visualize this by using the ALotOfApertures screen.

Linearity Maximum
Until what value of ADU does your camera stay linear : the basic idea of photometry is that the respons of your sensor reacts linearly to the brightness of your star. This is only valid until a certain level.
 
EGain
--> Egain of your camera in electrons per ADU (see the documentation of your camera)
 
 
 
 
## Photometry details
 
Radius Aperture
--> Default Radius of the aperture (i.e. the circle over the star). If FWHM is used this value is not very important (except for extremely faint stars)
Remark that on the StarGroup screen the radius of any star can be changed
 
Remark : the radius should be chosen so that no other star is to be found in the aperture around the star
 
Inner Radius Annulus
--> inner radius of the annulus. 
Remark that on the StarGroup screen the inner radius the annulus of any star can be changed
 
Outer Radius Annulus
--> outer radius of the annulus. 
Remark that on the StarGroup screen the inner radius the annulus of any star can be changed
 
FWHM
FWHM_prefer
--> FWHM indicates how big your star is on your photo. The radius of the aperture in pixels around the star is then taken as 1.5 times the FWHM
This is to be prefered instead of using a fixed radius around a star for placing the aperture.
EXCEPT when the star is very faint (and the SNR thus very low). In that case rather use the technique with a fixed radius.
 
 
 
## Other Defaults
 
Magnitude at Max not founter than 
When creating a star group ignore all stars fainter than this value. It's a default value and can be changed on the screen of the star group.

Maximum Angular Distance (in arc minutes)
When creating a Star Group, only take into account all stars closer than 30 minutes to the coordinates on the StarGroup screen
  
 
ExtractDefaultEnsemble
If by default an extract for AAVSO should be done for an ensemble, or by Reference Star plus Check Star.
 
 
 
 
 
 
## Some folders used by the program
 
Photometry Results
--> folder where the extracts with the results are placed. I personally use a dropbox folder as one does not want to lose this file.
 
 
Star Group Coordinates
--> where to save the files with the data on the Star Groups.
Each Star Group has one file.
 
If a Star Group is not needed any more, you can remove it from this folder.

As different telescope/camera combinations tend to need different field of views it can be interesting to have another Star Group folder by combination
 
 
Science Photos
--> base folder for your science photos.
Typically one will add subfolders per star and per star and date. 
 
 
 
Masters
--> base folder for your master photos
Typically one will add subfolders per camera and per date 
 
Dark Masters are placed in a separate folder.
 
See help on Calibration
 
 
Flats
--> base folder for your flat photos
 
Darks
--> base folder for your dark photos
 
Bias
--> base folder for your bias photos
 
 
Saving Figures
--> folder where the figures are saved. To save a figure you have to click on it. 
 
 
ASTAP
-->folder where the ASTAP program is located
 
 
 
 
 
 
 ## More Defaults
 
Default Delimiter
The delimiter used in the extract files.
(not changeable for the moment)
 
Marker SIze in Graphs
--> Size of the points in the figures produced by M.A.P.
 
 
Cyclers
By default a graph is in the color of the filter of the science frames (this can be overruled in the Photometry screen).
As more than one star can be shown in a graph, some need of different shades of blue, red, ... are needed. 
 
You certainly recognize the hex values of the colors !
 
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