ASI2600MM odd streaks in a sub exposure

hyiger

Started noticing these weird horizontal streaks in subs that would only appear with narrow band and not lum. It seems to have gone away when I turned on the camera's dew heater. Since these are subs it's not walking noise or hot pixels. Doesn't look like dew either since the pattern is too regular. Has anyone seen the same?

This is a 30 second unguided image in H-alpha. The streaks are the horizontal lines.

Tech@ZWO

hyiger Please check all USB cables and ports, and test with differents to rule out the problem first, then could you share the fits file with us?
thanks.

gErCfbid

I have exact same issue. In fact my images have more streaks than the above user. It only happens with 3nm narrowband filters or I would say it is worst with narrowband filters and not noticeable with RGB. I have already changed all USB cable. I am only using the newer USB3 cables coming from ZWO with new camera.

I have tried turning camera sensor cooling on/off. I have separate DC power supply to camera only with AC to DC adapter from ZWO which is rated for 5A. ASIAIR and other gear is powered with separate power supply. I would appreciate any answer on this topic.

Tech@ZWO

gErCfbid Could you please submit a ticket here and attach some raw files? thank you,
https://support.zwoastro.com/

gErCfbid

I have shared my FITS files

Tech@ZWO

gErCfbid Thanks, my colleague will handle it.

gErCfbid

Any update for me? I have not heard back from ZWO on this yet.

Tech@ZWO

gErCfbid What is your ticket ID? i will check and get back to you.

gErCfbid

I was not able to find my ticket number from my email, so I submitted it again today. Here is new ticket number 24094. Please ask support team to prioritize it.