Alan Mason replied to the topic 'Re:NanoPi M4' in the forum. 2 weeks ago

Will stellarmate OS run on this sbc?

Sent from my SM-G930V using Tapatalk

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Alan Mason thanked Chris Howard in topic Post your INDI Setup! 4 weeks ago
Alan Mason replied to the topic '"load and slew" failed' in the forum. 1 month ago

Right clicking anywhere on the planetarium display in kstars will give you an option to add a flag. Label it and then anytime you want to reference the RA and DEC, you will have it. Clicking under "tools" will give you a way to access all your flags organized. Copy-paste the RA and DEC coordinates into the scheduler or into the alignment tab should give you repeatable results.

Do you have the WCS enabled for your main imaging camera in its driver tab in the indi control panel?

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Alan Mason replied to the topic '"load and slew" failed' in the forum. 1 month ago

I've had the load and slew problem for a while now. My workaround is to add a flag in kstars and use that as the target for the scheduler. Its quick and easy. You can return night after night to those flags. Also, I tend to enjoy using the "DSS Colored" HiPS overlay. It really helps framing an object.

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Alan Mason replied to the topic 'Can anybody recommend USB GPS dongle for RPi/StellarMate?' in the forum. 2 months ago

The GPS NMEA works great. ShareGPS app on your phone and knowing the IP of the phone on the stellarmate network is really all you need for the driver to work. (and a gps lock with your phone of course)

This is the only way I can get a time sync on the pi without internet.

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Alan Mason replied to the topic 'EQ6R-Pro & Indi' in the forum. 3 months ago

This mount is very capable of running INDI.... I have one and run a Pi with USB to the mount and pulse guide with a asi290mini. EQMOD is the driver to use

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Helge thanked Alan Mason in topic ASI Camera - Gain/Offset/x-Bit 4 months ago
Alan Mason replied to the topic 'ASI Camera - Gain/Offset/x-Bit' in the forum. 4 months ago

gbeaton wrote:

ElevatedG wrote:

HelgeMK wrote: Thanks a lot for sharing! Maybe the observation spot I am using for testing is too light-polluted?

When you say, fitsviewer auto‘s everything, do you mean the autostretch function is enabled? In my case it is disabled.

Could you kindly share also a screenshot with the „control“ settings of the asi drivers? Just that I can cross-check if I messed up accidentally any other parameter.


Helge,

Yes, I set kstars fitsviewer settings to include autostretch and occasionally debayer as was in that image. I included my settings page for both cameras. I hope you have better luck with the camera.

WHERE is everyone getting this gain of 50 for HDR on the asi cooled cmos cameras? I keep seeing post with that value included but it's not what Sam at ZWO states as Highest Dynamic Range (widest range of signal that the sensor can record) Cooled ASI Camera Settings


It’s not camera dynamic range you are trying to achieve. It’s star SNR. If you have high gain the bright stars with high SNR will be saturated. These are all trade offs of course so it’s also related to exposure time. Because you probably have to have longer exposures for guiding to smooth things out. You’ll have to turn down the gain. You can corroborate what I’m saying with PHD2 “best practices”


Gain does not make your camera more sensitive. It boosts the noise as well as the signal and does not help the signal to noise ratio (SNR) in and of itself. Gain trades off dynamic range and quantization error.

It is camera dynamic range I am trying to achieve when I want the faintest signal and also stars with strong signal to be recorded. I am referring to taking images of DSO's with my cooled ASI071mc-pro.

With your comments above, it looks like you are referring to guiding that has exposures less than 5s where noise is not as important to manage as it is in a main imaging camera. I want the sensor well on my main camera to fill up slowly with the stronger signals to give the fainter signals time to register on the histogram without oversampling. GAIN AND OFFSET EXPLAINED ....the statement about gain above is in bold on this article.

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Alan Mason replied to the topic 'ASI Camera - Gain/Offset/x-Bit' in the forum. 4 months ago

HelgeMK wrote: Thanks a lot for sharing! Maybe the observation spot I am using for testing is too light-polluted?

When you say, fitsviewer auto‘s everything, do you mean the autostretch function is enabled? In my case it is disabled.

Could you kindly share also a screenshot with the „control“ settings of the asi drivers? Just that I can cross-check if I messed up accidentally any other parameter.


Helge,

Yes, I set kstars fitsviewer settings to include autostretch and occasionally debayer as was in that image. I included my settings page for both cameras. I hope you have better luck with the camera.

WHERE is everyone getting this gain of 50 for HDR on the asi cooled cmos cameras? I keep seeing post with that value included but it's not what Sam at ZWO states as Highest Dynamic Range (widest range of signal that the sensor can record) Cooled ASI Camera Settings

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Helge thanked Alan Mason in topic ASI Camera - Gain/Offset/x-Bit 5 months ago
Alan Mason replied to the topic 'ASI Camera - Gain/Offset/x-Bit' in the forum. 5 months ago

HelgeMK wrote: This is very helpful. Tonight I applied unit gain with 2 and 3 minute exposure but images turned out very dark. Also running the focuser with 4x4 binning and for instance 10 sec exposure were not satisfying. For the solver, 2x2 binning and 10 sec exposure worked ok with unity gain setting. Will use try next time higher gain values as suggested.

As regards the ASI120 cam, used as guide cam, the 50% gain and zero offset settings worked pretty well. In Internal Guider, 1.5 sec exposure seem to score good results.


I ran unity gain@-10C on my newly acquired asi071 pro two nights ago on the leo triplet. 180s exposures worked out okay. I want to try the HDR setting (0 gain) next session. Helge, I was able to autofocus using a 3.0s exposure binned 2x2 and produced almost a dozen candidate stars to select upon. I used the same settings for solving at unity. I attached a screenshot....ekos gave my images a whacky iso value that I never asked to to assign to the filename. Im using a CLS filter and fitsviewer auto'd everything

On the asi120, mine gave me so many problems with dropped frames that it was almost torture to try to get 25 frames of Leo. I am a fan of the new SEP guiding mode. It seems to measure HFR of the fov to get a better guide star. I'm eyeing the asi290mini as a viable replacement to a camera that i've flashed and fought for a while.

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Alan Mason thanked Jim in topic ASI Camera - Gain/Offset/x-Bit 5 months ago
Alan Mason thanked Jean-Luc in topic EQMOD questions 5 months ago
Alan Mason created a new topic ' Endless capturing image - Polar Alignment Kstars 2.9.5 Win10' in the forum. 5 months ago

Last night, during polar alignment, on the first capture it would solve just fine and list the WCS data. Then, it would proceed to image another frame, and another, and another for minutes without giving the option to rotate east or west. I reproduced this same instance using the simulators today. It did this in offline solver and remotely.

I was successfully able to polar align using the pi via vnc.

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