QHY268C weird artefacts

[kirkster501]

Unexpected semi clear night tonight - first for weeks on end.

Every six frames or so I get weird artefacts on my subs.  Had no issues before and no changes to the rig at all.

Any thoughts please?  Drivers are from September and I could upgrade these first I suppose.  

[kirkster501]

And another:

I will upgrade drivers and look at the USB cable.  Shouldn't need to though since I haven't changed anything......

[tomato]

Hi Steve,

I presume that with the clear sky has come some freezing temperatures? The last two nights out here in Shropshire have been the coldest I have encountered since setting up my permanent observatory.
Have you checked your power supply voltage to the camera, this might have come down in the cold and can cause download artefacts I believe?

[kirkster501]

1 hour ago, tomato said:

Hi Steve,

I presume that with the clear sky has come some freezing temperatures? The last two nights out here in Shropshire have been the coldest I have encountered since setting up my permanent observatory.
Have you checked your power supply voltage to the camera, this might have come down in the cold and can cause download artefacts I believe?

Hi matey, that is the next thing . I upgraded the drivers, rebooted and will do some flats in a bit to see if they come in OK.

Thanks for the thought.

[kirkster501]

I did a load of flats and darks yesterday after updating the drivers and all seemed to work OK.  The voltage seems to be stable.

Will keep an eye on it.

Edited January 16, 2021 by kirkster501