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Usage questions ..
#12
Ok, thanks for the details. I appreciate your taking the time. I tried to read that before I'd had my coffee, btw. Bad idea! I still have some questions about the bigger picture in order to help me design a workable solution to the pier flip problem, to help you make the best use of the software, and to improve the software in the future. My first impression is that there are better ways to accomplish what you are trying to do by making better use of the Observing Programs feature. But I will save my recommendations until I fully understand.

Please try to answer each question carefully:

1. You are going to great lengths to categorize your images by relatively small differences in sky brightness (I know you call this SQM but I prefer the more general nomenclature). I've asked this before. Why? Interpreting raw SQM readings is hardly straight forward. I need to know how you are interpreting the different SQM values that you get on different nights. Multiple choice below:

a. Is this primarily about the sky background level on your images? You mentioned problems with different sky levels in processing. If so, please elaborate.

b. Is this a proxy for transparency. Are you assuming that higher SQM values mean that the sky is more transparent and thus you get more signal in addition to a lower sky brightness. If so, please elaborate on how you process your images to take this into account. Many people would simply toss the lower quality images.

c. Are you selecting different targets for the night based on the raw SQM value? In reading above, this seems to be what you are doing, but I'm not sure. So you would go after certain targets that you wish to exposure for fainter signals, such as the halo of a galaxy (what you are calling detail) only when the SQM is high?


2. I need to better understand your issue with regard to the pier flip. I want to work on this soon. Multiple choice below:

a. Are you trying to go all night without ever flipping?

b. Are you trying to get all images for a given target on the same side of the pier so they will be consistent?

c. Are you trying to minimize the number of flips on a given night? E.g. do everything you can on one side, then flip to the other for the rest of the night?

Thanks!
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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