[BAA Comets] Submittings FITS images of 67P to the ESA/PSA archive

Richard Miles rmiles.btee at btinternet.com
Sun Jun 26 17:55:36 BST 2016


Yes - Hi Erik,

I only really use Astrometrica to analyse fully-reduced images.l
For the initial calibration step, I use the preprocessing tools in AstroArt 
to batch process the FITS images (dark subtracts and flat-fields).

Astrometrica is pretty good at processing up to 25 frames in one go, and/or 
in tracking and stacking sets of FITS images.

Cheers,
Richard Miles

----- Original Message ----- 
From: "Erik Bryssinck" <erik.bryssinck at telenet.be>
To: "BAA Comets discussion list" <comets-disc at britastro.org>
Sent: Sunday, June 26, 2016 10:20 AM
Subject: Re: [BAA Comets] Submittings FITS images of 67P to the ESA/PSA 
archive


> Hi Tony, Padma et all,
>
> Awesome presentation of Padma and Tony. Once again my great thanks to 
> Padma & Tony !!  Congratulations ! as one of the results of the workshop, 
> It will be enormously instructive to adapt more to the needs of the proff. 
> astronomers. A great PACA continuation and strive to constantly improve! 
> quality improvement :)
>
> Maybe another regarding this workshop is maybe another proposal: a while'm 
> looking for  a way to somehow CCD images, perform automatic data reduction 
> and subsequent astrometric calibration. (automatic CCD-image reduction can 
> be automated by f.e. MaximDL ans other) I now use Astrometrica, which is a 
> very good program to achieve the result, unfortunately, this is a manual 
> operating manner: selecting images, darks, flat etc ... and then start the 
> process astrometry. It is usually a long wait before the result is there 
> (i use big images). Practicable then errors so that certain images may not 
> be selected etc .. anyway, people who know use this program frequently 
> know what I mean. and now 11 years engaged in observing comets and I have 
> spent an enormous amount of hours in this processing. This issue begins to 
> annoy me so that I may pull out or recorded images no astrometric 
> calibration more output and therefore do not have a number of 
> measurements. This is very regrettable, of course.  Due this time 
> consuming process, i can't be busy with other things related to astronomy. 
> That's why I'm looking for a solution to this "process" can be fully 
> automated or at least partially.
>
> I had with Emanuel Jehin a while ago a privat conversation regarding this 
> issue and he told me that they use a 'pipeline'. All they have to do is 
> place the images in a particular folder and the computers do the rest. 
> This is for astronomy IT specialists to put this into practice.
> My question is whether there is some kind of interaction may exist which 
> could get the amateur astronomers to certain software to automate this 
> total processing? Or is there someone in the amateur world that can 
> program this or make available for the benefit of amateur astronomers? I 
> have this question once placed on the comets-ml but really got no answer. 
> I do not know if Padma here can have some influence?
>
> I look forward to the synthesis of the workshop! Thanks in advance !
>
> kind regards,
> Erik Bryssinck
>
>
> ----- Oorspronkelijk bericht -----
> Van: "Tony Angel" <tony_angel_uk at hotmail.com>
> Aan: "BAA Comets discussion list" <comets-disc at britastro.org>
> Verzonden: Zaterdag 25 juni 2016 12:07:34
> Onderwerp: Re: [BAA Comets] Submittings FITS images of 67P to the ESA/PSA 
> archive
>
> Hi Nick and all,
>
> I am still getting over my trip back from Austria.  Never - if I can
> help it - will I catch the Graz to Vienna train again. The motion of it
> made me quite travel sick - which is something I have not suffered since
> a boy. Luckily I was traveling with Alan Fitzsimmons and his wife Ann
> who had a very wide brimmed hat which she used to waft me some air.
> Anyway.....
>
> There was quite a bit of discussion on data at the workshop lead by
> Colin. There had been quite a bit of misunderstanding in this area and I
> had already included within part of one of my slides:
>
> *Professionals use the same words as amateurs - however they do not
> always mean the same thing.*
>
> There were also two short talks discussing the data uploading and
> standards which were helpful, but only in the sense of getting to
> understand what is meant and not the details. (I will be including some
> web links to Nick) There was quite a conversation on the words calibrate
> and calibration what they meant to different people and how the words
> were used determined their meaning :) LOL This was one of the more
> humourous episodes of the workshop.
>
> I had explained that I took  raw images and that I applied a number of
> darks, a number of flats, a number of biases and a number of flat darks
> against these raw images to produce my final images. I then asked what
> of this do you want. The answer was everything plus a document with each
> run (Padma correct me if I am wrong) that explains how the observations
> were carried out. There was a question I did not ask which I am now
> kicking myself for to do with multiple scopes imaging at the same time.
>
> This means that for me I will create a directory for the run. In it will
> be a document plus a directory holding the raws, a directory holding the
> darks, a directory holding the flats, a directory holding the biases, a
> directory holding the flat darks and a directory holding the final images.
>
> I was in the process of writing a report to Nick when I saw this. I will
> mention a few things in brief.
>
> Padma and I represented the amateur contribution - which meant I was the
> only amateur in attendance - made very welcome by all. Padma did the
> amateur community proud and over the few days was doing a very good
> selling job to the other professionals.
>
> All presentations will be published on the net - however quite a bit of
> the information was embargoed because it has not been officially
> released - we were told to swallow cyanide pills rather than divulge
> embargoed information - the problem is that until the redacted
> presentations are published we will not know what was embargoed LOL. All
> I can say on the results is WOW. Padma being a professional herself may
> know more on what can be said now.
>
> I will be sending my presentations to Nick with my report. I got in a
> couple of good BAA plugs. One was the youtube video that Nick made of
> his talk on Ground Base Observations, the other was to tell them that
> The Alcock Project Web pages was the place to start for the
> professionals to understand the techniques, tools and capabilities of
> the amateurs. I noticed many of them noting it down.
>
> I had two slots. The first just a few slides along with all the other
> observers where I covered some of my observations. The second took place
> at the end of the morning session and it was running late. I am glad to
> say that this session which was about amateur capabilities and working
> with professionals went over time due to questions and comments and then
> there were about another 10 minutes of questions, so instead of 15
> minutes I had about 30 minutes. There was certainly a recognition that
> more work needs to be done on some common standards, utilities
> (including for file) for amateurs to use and help with filters both
> sloan and narrowband.
>
> As a middle of the ladder observer I was amazed by the amount of
> interest shown in what I had done, with many genuine requests to keep in
> touch.
>
> Nick I will be getting the rest to you soonest.
>
> One nice surprise was that Padma presented me with a 3-D printed scale
> model of 67P.
>
> Tony
>
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