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June 24 2026 APP 2.0.0-beta46 has been released !

Improved internal memory configuration (lower ! memory usage), fixed beta45 startup issue, fixed Set Save Directory & 2-panel mosaics.

May 27 2026 APP 2.0.0-beta45 has been released !

Fully Multi-Threaded LNC, many improvements for the registration engine, platform upgrade, and further tuning of internal memory consumption and memory release back to OS.

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Update on the 2.0.0 release & the full manual

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Once 2.0.0 is released, the price for APP will increase. Owner's license holders will not need to pay an upgrade fee to use 2.0.0, neither do Renter's license holders.

 

[Solved] Can't save calibration files: "Invalid FITS keyword [SIGMAnull]"

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(@jerelsmith)
White Dwarf
Joined: 5 years ago
Posts: 6
Topic starter  

APP newbie: I load the Flat and DarkFlat images, then calibrate. The analysis seems to run, but is unable to save the results with the error message: "Invalid FITS keyword [SIGMAnull]" This stops APP and I have to quit. Per other fora that I've seen I'm not using non-ASCII characters in filenames or running my Virus software.

Output:

image

Tech Details:

MacBook 16-in 2021 (w/ M1 Max chip)
OS Sonoma 14.5
APP 2.0 Beta 29
(system rebooted, no other apps. running)
Canon SL2
For processing, files were converted using Pixillion from CR2 to Tiff

This topic was modified 2 years ago by Jerel Smith

   
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(@jerelsmith)
White Dwarf
Joined: 5 years ago
Posts: 6
Topic starter  

This problem has not been solved. In a week, it has not even been answered. I don't know how the "solved" label got on it or how to get the "solved" label off of it. I am very frustrated by the lack of any response.



   
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(@jerelsmith)
White Dwarf
Joined: 5 years ago
Posts: 6
Topic starter  

I found that inputting data as CR2 avoided the error. Apparently APP does not handle Tiff files.



   
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