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Thread: AstroTortilla....need help

  1. #41
    Phil Leigh's Avatar
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    Default Re: AstroTortilla....need help



    By the way, Win 7 runs an auto defrag routine periodically... You shouldn't need to manually run a defrag on a Win 7 NTFS drive...
    Telescope: SWEquinox ED80 Pro (Schott/Ohara Fluorite)+Baader Steeltrack, C8 XLT Mount: Skywatcher HEQ5 Pro, Rowan belt drive on Pillar mount+EQDIR+ADM saddle/dovetails Camera: JTW1100D mono , CentralDS 600, ASI120MM. ASI120MC, IDAS & Baader NB 2-inch filters, TS Filter Drawer System Accessories: TV Nagler T4 12 mm, Baader 8-24 MkIII, Ortho 5mm, Aspheric 31mm, Meade 12mm reticle, TV Powermate 2x & 2.5x, JMI+BAST Motorfocus+FCUSB, TV 0.8x FR/FF, Celestron 0.63FR, Orion RACI & Mag Mini, Canon IS 15x50 Bins
    Software: EQMOD/Stellarium/Autostakkert!/Registax/BackyardEOS/PixInsight,PHD2,AlignMaster, AstroTortilla, Straton

  2. #42
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    Default Re: AstroTortilla....need help

    Quote Originally Posted by Phil Leigh View Post
    By the way, Win 7 runs an auto defrag routine periodically... You shouldn't need to manually run a defrag on a Win 7 NTFS drive...
    You are correct and my laptop does it at 1:00 AM on Wednesdays however when having strange problems with directories/folders not appearing when and where they should, I decided as means of elimination, to run it early...

    It didn't reveal anything, results were normal as expected and I used my Passport USB drive to copy the cygwin directory and all subfolders on the i7 PC to the i3 laptop, and that works, the laptop is now resolving files in 7 to 8 seconds, only slightly slower than the i7 machine...

    To be able to make that comparison was what this was all about, it tells me that PC CPU power & speed only has a slight effect... This is with indexes 205 through 219 all installed in the astrometry\data directory which also tells me that only a cold start first resolve might be affected by having all the files present. in my first start test of this install, the first resolve took about 45 seconds...

    I can live with this as I have a number of different focal length/FOV lenses and telescopes and see no reason to remove unused indexes thus handicapping future resolves... I also go along with removing and archiving indexes if you work with only one focal length/FOV, there is no point to having them present...

    I can only conclude the cgywin install routine is not 100% compatible with all computers, there is no logical reason I can find after two days of installing/removing, reinstalling as to why the installer is not working correctly. Its not a memory issue with two HD present, drive C with 380 Gb free space, and the other with 900Gb free space... restarting the computer ro be sure the 6 Gb RAM is clear didn't help either...

    The problem has to be a bug in the installer is all I can conclude...
    Phil Leigh likes this.
    Thanks, Mitch - K1FH
    And sidekick Shadow, the precocious one
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  3. #43
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    Default Re: AstroTortilla....need help

    Quote Originally Posted by Phil Leigh View Post
    One final thought... Somewhere on your PC you should have a file called astrotortilla.cfg... Can you find that and post it here?
    Thanks
    Phil
    Phil,

    This is what exists since running AT 0.3.0.0 after the bulk copy of cygwin from the other machine and gerring AT to work. However getting AR to work, I did not change anything in the AT install, only changes that have been made were during AT running correctly:

    [Telescope-ASCOMTelescope]
    syncaccuracy = 1.0
    lastselection = Celestron.Telescope
    syncmaxwait = 2.0
    propertyagelimit = 1.0

    [Solver-AstrometryNetSolver]
    shell = C:\cygwin\bin\bash --login -c "%%s"
    downscale = 0
    scale_max = 2
    scale_xrefine = 0
    configfile = /etc/astrometry/backend.cfg
    scale_low = .8
    xtra = --sigma 50 --no-plots -N none
    searchradius = 45
    year_epoch = JNOW
    scale_units = degwidth

    [Session]
    syncmode = 0
    solver = AstrometryNetSolver
    iterlimitcount = 5
    camera = FileOpenCamera
    iterlimitarcmin = 1.0
    exposure = 5.0

    [Camera-FileOpenCamera]
    directory = C:\Users\Mitch\Pictures\BackyardEOS\AT_DUMP
    binning = 1

    [Bookmarks]
    count = 0

    [AstroTortilla]
    settings_path = C:\Users\Mitch\AppData\Local\astrotortilla.sf.net\ AstroTortilla
    log_file =
    log_level = ERROR

    Thanks, Mitch - K1FH
    And sidekick Shadow, the precocious one
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  4. #44
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    Default Re: AstroTortilla....need help

    Thanks everybody for your help! I think the settings for me were the biggest thing. I had to reload AT at one point as was mentioned earlier. I have it working now, Actually it seems to be getting quicker the more images I solve.

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  5. #45
    Phil Leigh's Avatar
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    Default Re: AstroTortilla....need help

    Mitch,
    your astrotortilla.cfg file looks to be correct and is the same as mine.

    The section below tells AT what parameters to pass to the Astrometry.net solver engine. In particular, it specifies the location of the file "backend.cfg" which contains (amongst other things) details of the location of the indexes that the solver engine should use.


    [Solver-AstrometryNetSolver]
    shell = C:\cygwin\bin\bash --login -c "%%s"
    downscale = 0
    scale_max = 2
    scale_xrefine = 0
    configfile = /etc/astrometry/backend.cfg
    scale_low = .8
    xtra = --sigma 50 --no-plots -N none
    searchradius = 45
    year_epoch = JNOW
    scale_units = degwidth


    In your (and my) case, astrotortilla.cfg is saying that backend.cfg is located in the folder

    c:\cygwin\etc\astrometry

    The file backend.cfg needs to exist in that folder and should be the only thing in that folder.

    I don't think I can help further without screenshots of what is appearing in the AT log file.
    Can you open AT, open the Log Viewer window and stretch it out and set the log level to DEBUG (so the screen looks like the attachment to this message)then try and solve a file (any file) and capture what is left on screen?
    thanks
    Phil

    PS You can copy backend.cfg from a working machine...
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    Telescope: SWEquinox ED80 Pro (Schott/Ohara Fluorite)+Baader Steeltrack, C8 XLT Mount: Skywatcher HEQ5 Pro, Rowan belt drive on Pillar mount+EQDIR+ADM saddle/dovetails Camera: JTW1100D mono , CentralDS 600, ASI120MM. ASI120MC, IDAS & Baader NB 2-inch filters, TS Filter Drawer System Accessories: TV Nagler T4 12 mm, Baader 8-24 MkIII, Ortho 5mm, Aspheric 31mm, Meade 12mm reticle, TV Powermate 2x & 2.5x, JMI+BAST Motorfocus+FCUSB, TV 0.8x FR/FF, Celestron 0.63FR, Orion RACI & Mag Mini, Canon IS 15x50 Bins
    Software: EQMOD/Stellarium/Autostakkert!/Registax/BackyardEOS/PixInsight,PHD2,AlignMaster, AstroTortilla, Straton

  6. #46
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    Default Re: AstroTortilla....need help

    Hi Phil,

    Well, the whole problem seems to be that cygwin is not getting installed correctly... That a bulk copy of the entire cygwin directory complete with subfolders from the other machine works and AT now resolves images as expected indicates to me there is some sort of compatibility issue with the cygwin installer and this machine... The important thing to me is that AT is now working on the laptop and I have been able to make the comparison in resolving time between the PC with i7 3.4 Ghz processor and the Laptop with i3 2.6 ghz processor and find only a slight difference in speed...

    To make my comparison, I selected 22 "snapshot" images of star fields made using BYEOS, the ES127, and Canon 60Da camera, and placed them is a folder "AT_Ref"... I then copied this folder to the laptop so I have it on both computers. I then used AT to resolve each of these images on both machines and found only a slight increase of resolve times, probably about 15% slower on the laptop with the i3 processor.

    The next step of my test was to see what the effect of changing a couple of the parameters that seem to have a significant effect on resolving speed would produce, the two I was most interested in being Sigma and search radius... I ran through the 22 images in AR_Ref folder with search radius set to 45 as I normally use it and then repeated the test with search radius set to 180 and found no difference in resolve times, all 22 images redolved in the same time....

    I then repeated this test 3 times with Sigma set to 50, 100, and 200... The results of changing sigma were significant. With sigma set to 200, AT would not resolve all the images in the AT_Ref folder and after a couple of fail to resolve near the top of the list, I abandoned the sigma 200 test.

    The most significant result of the sigma test was that with sigma set to 100, all 22 images resolved and on a couple of the reference images that took longer to resolve than the others, the resolve time was dramatically reduced. On the images that resolved the fastest with the i3 cpu machine, there was no change in resolve speed however a couple images that were taking about 45 seconds to resolve with sigma set to 50, the change of sigma to 100, these same images were resolving in 14 to 16 seconds...

    The conclusion is that I am going to run AT with sigma set to 100 for a while or until I see a reason to change it...

    This is as far as my planned tests of AT resolving speed go for the moment. I have another test project in process that I want to spend more time with and that is the evaluation of linking methods for remote mount/camera/autoguiding control.

    I'm in the middle of evaluating active USB cables vs WiFi vs TCPIP ethernet as a link between the mount and cameras and an indoor PC as the control system. I'm in the midst of running bench mark speed tests on each method and for the moment being mid winter here, I'm satisfied with what I have learned with AT for the time being...
    Thanks, Mitch - K1FH
    And sidekick Shadow, the precocious one
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  7. #47
    Phil Leigh's Avatar
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    Default Re: AstroTortilla....need help

    Mitch - glad you got it working.
    The sigma setting is inextricably linked to the exposure of the image (duration+ISO) and the field of view.
    The sigma setting changes the "simplexy" score (as reported in the log) which is the number of stars that AT can discern for possible alignment.
    I've found that for me sigma 50 with my scope and ISO 1600 and 5-6 second exposures always gives me a simplexy score of 20-200 which leaves me with typically a sub-20 second solve.

    I agree that changing the search radius makes no difference and leave mine at 180.
    Removing spurious (unneeded) indices from the folder speeds things up too.
    regards and happy alignment
    Phil
    Telescope: SWEquinox ED80 Pro (Schott/Ohara Fluorite)+Baader Steeltrack, C8 XLT Mount: Skywatcher HEQ5 Pro, Rowan belt drive on Pillar mount+EQDIR+ADM saddle/dovetails Camera: JTW1100D mono , CentralDS 600, ASI120MM. ASI120MC, IDAS & Baader NB 2-inch filters, TS Filter Drawer System Accessories: TV Nagler T4 12 mm, Baader 8-24 MkIII, Ortho 5mm, Aspheric 31mm, Meade 12mm reticle, TV Powermate 2x & 2.5x, JMI+BAST Motorfocus+FCUSB, TV 0.8x FR/FF, Celestron 0.63FR, Orion RACI & Mag Mini, Canon IS 15x50 Bins
    Software: EQMOD/Stellarium/Autostakkert!/Registax/BackyardEOS/PixInsight,PHD2,AlignMaster, AstroTortilla, Straton

  8. #48
    fmhill's Avatar
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    Default Re: AstroTortilla....need help

    Quote Originally Posted by Phil Leigh View Post
    Mitch - glad you got it working.
    The sigma setting is inextricably linked to the exposure of the image (duration+ISO) and the field of view.
    The sigma setting changes the "simplexy" score (as reported in the log) which is the number of stars that AT can discern for possible alignment.
    I've found that for me sigma 50 with my scope and ISO 1600 and 5-6 second exposures always gives me a simplexy score of 20-200 which leaves me with typically a sub-20 second solve.

    I agree that changing the search radius makes no difference and leave mine at 180.
    Removing spurious (unneeded) indices from the folder speeds things up too.
    regards and happy alignment
    Phil
    One cautionary note about my AT resolving speed test, and that is that indexes seem to be cached. if I do a whole series of resolves using similar images and then switch to an image of different parameters (greater star count?), the resolve time takes a lot longer than if I have mixed images of different type of content and the image with longest resolve times starts resolving in much shorter times... This seems to relate to the "number of objects found" in the log file but is not the controlling factor. The primary factor seems to be which indexes that are in the \astrometry\data directory whose contents seem to be "cached"...

    This lends credibility to the theory of removing and storing the indexes not being used for the FOV you use regularly...
    Thanks, Mitch - K1FH
    And sidekick Shadow, the precocious one
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