I am having sacking problems after restarting ASTAP.
I initially added a single set of B-band subs to the Lights tab (all the same filter, temperature, exposure & gain). In the Darks tab I aded all my darks with a range of exposures (however same temp & gain as the lights). In the Flats, I added flatts for B & V filters (different exposures for the two filters). In the Bias tab I added my bias frames.
I am using the "Sigma clip average" style of stacking with Classify by "Dark exposure time", "Dark temperature & gain" and "Flat filter" checked. The "Light filter" is unchecked.
If I click the Stack button, everything works. The images are analysed and stacked. In the Darks and Flats tabs, my calibration images have been replace by the master calibration images.
I then clear that set of lights and added those for the V-band. Clicking the Stack button once again succeeded using hte master calibration images. As a test I cleared the lights and re-add the first set. They stacked correctly as well
I then quit ASTAP and restaarted it (simulating doing further work on a different day)
I cleared what was in the Lights tab and re-added the first set of B-band images that successfully stacked previously. When I clicked Stack I got errors like:
09:34:20 █ █ █ █ █ █ Warning, could not find a suitable dark for exposure "15 and temperature -10 and gain 100.00"! De-classify temperature or exposure time or add correct darks. █ █ █ █ █ █
I don't understand why I got these errors after restarting ASTAP. Either I'm misunderstanding something or ASTAP is not reloading the masters correctly. I believe I even manually reloaded the masters and still got the errors.
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
I simplified things but the problem remains. The zip file contains 5 darks, 5 flats, 5 biases and 5 lights. I also have the masters that were produced from the first successful stacking and the final result.
If I put all the files in their respective tabs and Stack (average), the stacking goes without a hitch. If I then restart the app and try to stack with the files as they were saved in the tabs, I get the error.
I just can't seem to stack after a restart using the masters. This is probably something stupid I'm doing but I can't imagine what.
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
I may have found a work around for this, or maybe this is how I'm supposed to have been doing it.
When I relaunch the app, the files are all saved in their respective tabs but they are not "analyzed". The columns after the File colum are all blank. If I immediately do a Stack, the Lights are analyzed and it appears the master dark and flat are as well (at least the columns are filled in). However I will get the error saying it couldn't find the appropriate dark.
However, if after relaunching the app, I switch to the Darks and Flats tabs and first Analyze them, then when I try to stack, all goes well.
Seems like ASTAP should automatically analyze the Darks and Flats first if need be and then analyze the Lights and stack them. As I said, I have a work around, but I'm surprised it is necessary.
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
There are two levels of analysing dark and flats. With the analyse button you analyse all fields. For stacking you don't have to analyse the background and standard devation. Analyse the background is CPU intensive would slow down stacking. That is then skipped. Unfortunately the gain was also skipped. I will fix it.
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
I am having sacking problems after restarting ASTAP.
I initially added a single set of B-band subs to the Lights tab (all the same filter, temperature, exposure & gain). In the Darks tab I aded all my darks with a range of exposures (however same temp & gain as the lights). In the Flats, I added flatts for B & V filters (different exposures for the two filters). In the Bias tab I added my bias frames.
I am using the "Sigma clip average" style of stacking with Classify by "Dark exposure time", "Dark temperature & gain" and "Flat filter" checked. The "Light filter" is unchecked.
If I click the Stack button, everything works. The images are analysed and stacked. In the Darks and Flats tabs, my calibration images have been replace by the master calibration images.
I then clear that set of lights and added those for the V-band. Clicking the Stack button once again succeeded using hte master calibration images. As a test I cleared the lights and re-add the first set. They stacked correctly as well
Here is a log file for the initial stacking:
http://www.otherwise.com/ASTAP/InitialStacking.txt
I then quit ASTAP and restaarted it (simulating doing further work on a different day)
I cleared what was in the Lights tab and re-added the first set of B-band images that successfully stacked previously. When I clicked Stack I got errors like:
09:34:20 █ █ █ █ █ █ Warning, could not find a suitable dark for exposure "15 and temperature -10 and gain 100.00"! De-classify temperature or exposure time or add correct darks. █ █ █ █ █ █
The Darks tab still retained the master dark files it had previously. Here is a log of this second run:
http://www.otherwise.com/ASTAP/SecondStacking.txt
I don't understand why I got these errors after restarting ASTAP. Either I'm misunderstanding something or ASTAP is not reloading the masters correctly. I believe I even manually reloaded the masters and still got the errors.
Hello Bill,
I have uploaded the new Mac version dated 2022-08-02. I did some complicated restructuring in the code. so please report any new error.
About your new problem. Can you send me the master darks, master bias and a few B and V files? All zipped. E.g. you could upload them to
https://ufile.io/
and send me the link.
Then I can simulate your setup for testing.
Han
Han,
The files are at: https://ufile.io/hu1kgxde
I simplified things but the problem remains. The zip file contains 5 darks, 5 flats, 5 biases and 5 lights. I also have the masters that were produced from the first successful stacking and the final result.
If I put all the files in their respective tabs and Stack (average), the stacking goes without a hitch. If I then restart the app and try to stack with the files as they were saved in the tabs, I get the error.
I just can't seem to stack after a restart using the masters. This is probably something stupid I'm doing but I can't imagine what.
Maybe a bug. I will have a look tomorrow. Currently it is almost midnight here and clear sky.
I may have found a work around for this, or maybe this is how I'm supposed to have been doing it.
When I relaunch the app, the files are all saved in their respective tabs but they are not "analyzed". The columns after the File colum are all blank. If I immediately do a Stack, the Lights are analyzed and it appears the master dark and flat are as well (at least the columns are filled in). However I will get the error saying it couldn't find the appropriate dark.
However, if after relaunching the app, I switch to the Darks and Flats tabs and first Analyze them, then when I try to stack, all goes well.
Seems like ASTAP should automatically analyze the Darks and Flats first if need be and then analyze the Lights and stack them. As I said, I have a work around, but I'm surprised it is necessary.
One thing I noticed is that the gain is not read for darks and lights. That is clearly a bug.
There are two levels of analysing dark and flats. With the analyse button you analyse all fields. For stacking you don't have to analyse the background and standard devation. Analyse the background is CPU intensive would slow down stacking. That is then skipped. Unfortunately the gain was also skipped. I will fix it.