SET-TEMP in FITS Header is missing: Page 2

SET-TEMP in FITS Header is missing

AstroVis

Today I tried DSO Stacking with Bias, Darks, Flats and Lights. It cannot be used because satellite trails are not removed . What is wrong? Lights captured with ASI533MC-P

PMTeam@ZWO

AstroVis Thanks for your feedback, if possible, please share your fits files thru google drive or dropbox. So we can test and optimize the stacking result.

w7ay

@ASIAIR@ZWO#59629 So we can test and optimize the stacking result.

When you stack images, you need to remove pixels that are outside the statistical noise from the camera and sky background.

See "Sigma Clipping" that is used by other programs (when there are enough subframes). The algorithm can be found here:

https://www.gnu.org/software/gnuastro/manual/html_node/Sigma-clipping.html

A bright pixel from a strong satellite trail that only appears in a single sub-frame is easily removed this way.

Chen

AstroVis

Hi, Thanks,
stacking with original files by MaxImDL is no problem. For stacking with Asiair, how can I remove invalid pixels? If SigmaClipping is not possible, than stacking with Asiair makes no sense. Of course I will not delete my files with satellite tracks for stacking, I would loose a lot of imaging time. If there is no solution in Asiair in the future, I will keep working with MaxIm DL. Not only the satellite trails but also the Fits colors are strange.

PMTeam@ZWO

AstroVis Got you, please share your fits files thru google drive or dropbox. So we can test and optimize the stacking result. Thanks.

AstroVis

Colorproblems can more or less be solved with ColorCalibration, but with these Satellite Trails images are not usable.

AstroVis

OK, here they are. All Bias, Darks, Flats, Lights of Stock23 and Masterfiles

https://drive.google.com/drive/folders/1tRr4YH9r_S0Pd1z69IJvM00WQtteZVij

Horst

AstroVis

Hi,
good news. After stacking more files (now 51) all Satellite Trails disappeared.

AstroVis

Please solve my problems with missing SET-TEMP in Fits Header and Filtername for manual filter drawer, thanks

PMTeam@ZWO

AstroVis Already in the todos. Thanks for your info.

AstroVis

On my iPhone I have the problem with version 2.0 that after a while, mount looses connection in spite that guiding is still running. If I stop guiding and try to move to park or move to other object nothing happens. Also no reaction on up-down-left-right keys. WiFi connection is still up and running.
But I don‘t need to restart Asiair, I just disconnect the mount on Asiair and reconnect it again, that solved the problem for the moment. But this issue should be solved because I don’ know if other problems arise after connection is lost. Or please give me a link to download the old version
Thanks, Horst

PMTeam@ZWO

AstroVis What is your mount model? BTW, please upload the runtime log under 'About - Bug Report'.

AstroVis

My mount is iOptron GEM28
thx

AstroVis

Btw, mount connection lost not only happens at runtime but also after a while, when Asiair just is connected and up and running. So there is no logfile?

AstroVis

In the bug report you wrote problem solved. That is not true, problem still exists.

PMTeam@ZWO

AstroVis The bugfix will be included in the next release.

AstroVis

When will it be released?

PMTeam@ZWO

AstroVis Planned to release the public beta version of v2.1 on 12.25.

AstroVis

Thanks, that would be perfect

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