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Usage questions ..
#6
Ok, I see what's going on now. But I hate kludges though. You should not have to do something as extreme as setting up two different projects for the same object. I think the issue is that you are setting the Imaging Project to complete at 60 SNR, when in fact, you apparently what a lot more than that. The SNR that you specify is supposed to be the total SNR that you want to achieve, not just the SNR on a single night.

What I am running into when I speak to people about ST4, now that they have had some time to start using it, is that they naturally want to force it to work the way that they have always worked. But ignoring a few shortcomings, the way ST4 works came about entirely from using the model to get the best possible images. So if the user forces another way of working on to it, they will eventually become unhappy. Not only will ST4 be ill suited to the way they want to work, but they won't get the optimum results. For many people, using ST4 is going to mean changing how the work.

There is no need to achieve your final SNR all at once. You could use a 5 minute exposure one night, another next week, three more next month, and more next year. So here is how it would suggest doing your observations within the ST4 framework:

1. Set your project to only complete after the final SNR that you want, say 100. As long as the quality of the images is similar, it does not matter if they were taken on different nights.

2. On the Basic tab of the project, set "Expose On" to multiple nights. This tells the Scheduler that we don;t have to get the whole 100 SNR in one night.

3. When you schedule, let the Scheduler do its thing. Don't force it to do what you want. It will adapt sub exposures to the conditions, and choose the number of images on a nightly basis in order to achieve the final result that you want. It will squeeze the maximum SNR out of the time you have each night. Your job is to set the parameters for it will work within, such as the minimum IQ. Use the Priority to give it hints about what to do first. Under some circumstances you may want to force the sub exposure times to always be the same, so that they will stack better. But only if you have good reason to.

4. Log every observation. The hardest adjustment for some people is to make the investment in logging their observations as they go. If you take an extra few minutes to log them, you get a long-term benefit in return. By logging, the Scheduler will know how many more observations are needed to reach your target SNR. Eventually it will tell you that the project is completed. After that you will always have an archive of your observations.

Remember the SkyTools 4 official motto: "Projects are meant to be completed, never deleted."

Please let me know how things go and how you adapt as you learn the software. I know that it some ways ST4 will need to adapt too.
Clear skies,
Greg

SkyTools Developer
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Messages In This Thread
Usage questions .. - by choward94002 - 2018-09-21, 12:25 AM
RE: Usage questions .. - by theskyhound - 2018-09-21, 03:27 AM
RE: Usage questions .. - by choward94002 - 2018-09-21, 12:58 PM
RE: Usage questions .. - by theskyhound - 2018-09-21, 02:50 PM
RE: Usage questions .. - by choward94002 - 2018-09-21, 03:36 PM
RE: Usage questions .. - by theskyhound - 2018-09-24, 04:24 PM
RE: Usage questions .. - by choward94002 - 2018-09-25, 02:34 AM
RE: Usage questions .. - by theskyhound - 2018-09-25, 05:09 PM
RE: Usage questions .. - by choward94002 - 2018-09-26, 04:03 PM
RE: Usage questions .. - by theskyhound - 2018-09-26, 08:39 PM
RE: Usage questions .. - by choward94002 - 2018-09-27, 12:04 AM
RE: Usage questions .. - by theskyhound - 2018-09-27, 05:14 PM
RE: Usage questions .. - by choward94002 - 2018-09-27, 08:35 PM
RE: Usage questions .. - by choward94002 - 2018-09-27, 11:20 PM
RE: Usage questions .. - by theskyhound - 2018-09-28, 03:48 AM

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