Closed RomanAkhmetshyn closed 2 years ago
I just compared the first and last image of the stacked median. It appears that the stars don't move but are elongated in single images.
Ok. So, we need to focus the next clear night. We don't have an autofocus routine, but we should be able to put something together with a bit of code. I'll think about whether we can hack ACP into doing it or whether we need to write a small python script that does it.
Mike
From: RomanAkhmetshyn @.> Sent: July 21, 2022 10:40 AM To: ColibriKBO/ColibriObservatory @.> Cc: Michael Mazur @.>; Mention @.> Subject: Re: [ColibriKBO/ColibriObservatory] New pointing model for Green (Issue #9)
I just compared the first and last image of the stacked median. It appears that the stars don't move but are elongated in single images. [image]https://user-images.githubusercontent.com/108425347/180241678-e3cfaa74-a89f-42a6-90c6-a9df04f03a3c.png
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Is it 9 consecutive images? If so, check later in the night. It wouldn't trail that much in a quarter of a second unless the tracking is off. What do the individual images look like? Are they trailed? If so, it's likely the focus that needs to be adjusted.
Mike
From: RomanAkhmetshyn @.> Sent: July 20, 2022 3:11 PM To: ColibriKBO/ColibriObservatory @.> Cc: Michael Mazur @.>; Mention @.> Subject: [ColibriKBO/ColibriObservatory] New pointing model for Green (Issue #9)
While doing a sensitivity check I noticed that the median combined image (9 images of 0.025sec exposure I believe) uploaded to astrometry.net had pretty long stars. If it's something to do with the pointing model, I could try to fix it myself when there will be no observations planned on Green. Could you please confirm this? @mjmazurhttps://github.com/mjmazur [image]https://user-images.githubusercontent.com/108425347/180062990-74215b66-569c-4662-abbe-9b2cf0d89991.png
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While doing a sensitivity check I noticed that the median combined image (9 images of 0.025sec exposure I believe) uploaded to astrometry.net had pretty long stars. If it's something to do with the pointing model, I could try to fix it myself when there will be no observations planned on Green. Could you please confirm this? @mjmazur