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PCC Failure to Calculate Photometry

Reggie JonesReggie Jones
in PixInsight
Hi Adam.  Working with combined data for Telescope Live Barnard 252.  Tried to apply PCC to image using the coordinates from the FITS Header and I got the error below.  Thought the coordinates in the FITS Header could be the problem - used Image Solver to get coordinates and tried PCC again but still got an error.  I searched for coordinates in PCC using the Cambridge server, but that server could not find coordinates under Barnard 252.  Used B252, LDN 1698, LDN 1699 and still got no coordinates.  Switched to the French Server and I did get coordinates; used those coordinates to run PCC and I still received the error below.  

Here's the Dropbox link to the file.  Not sure where to go from here...  


Loading control points...

Simplified surfaces: tolerance = 0.03 as | l: 710 | b: 765

Simplified surfaces: tolerance = 0.05 px | X: 703 | Y: 765

Loaded 765 control points (metadata version 1.1).

Reference image: PCC_B_TTS6U4961VOO

Calculating image noise: sigma=7.070 count=5.18% layers=4

Multiscale median transform: done

Multiscale reconstruction: done

Normalizing sample values: done

Aperture Photometry:

Aperture: 24.00 px

Image resolution: 0.620 as/px

Calculating photometry: Processed 0 stars in 0.00 seconds

Writing output file: /var/folders/77/yfgx2cv943x2gdzbhpjzk2hr0000gn/T/PCC_B_TTS6U4961VOO.csv

*** Error: Failure to process image file '/var/folders/77/yfgx2cv943x2gdzbhpjzk2hr0000gn/T/PCC_B_TTS6U4961VOO.xisf': TypeError: area is null


*******************************

Photometry process finished:

0 of 3 images processed successfully.

3 images with errors.

3 errors and warnings.


*** Error: Failure to calculate photometry: B252_RGB

Reading swap files...

3727.662 MiB/s

<* failed *>


Comments

  • Reggie JonesReggie Jones
    One additional piece of info; prior to this final error, there were 2 others during the process.  I've posted below.

    Loading control points...

    Simplified surfaces: tolerance = 0.03 as | l: 710 | b: 765

    Simplified surfaces: tolerance = 0.05 px | X: 703 | Y: 765

    Loaded 765 control points (metadata version 1.1).

    Reference image: PCC_R_3JKAG81JY1GF


    Searching for optimal magnitude limit...

    Iteration 1: m=16.31, 0 sources found.

    Iteration 2: m=17.94, 0 sources found.

    Iteration 3: m=19.74, 0 sources found.

    Iteration 4: m=21.71, 0 sources found.

    Iteration 5: m=23.88, 0 sources found.

    Iteration 6: m=26.27, 0 sources found.

    Iteration 7: m=28.89, 0 sources found.

    * Using an automatically calculated limit magnitude of 28.89.

    Executing APASS DR10 search command...

    0 sources found.

    Catalog APASS DR10 (XPSD): 0 objects inside the image.

    *** Error: Failure to process image file '/var/folders/77/yfgx2cv943x2gdzbhpjzk2hr0000gn/T/PCC_R_3JKAG81JY1GF.xisf': Could not find any stars in the catalog



    Loading control points...

    Simplified surfaces: tolerance = 0.03 as | l: 710 | b: 765

    Simplified surfaces: tolerance = 0.05 px | X: 703 | Y: 765

    Loaded 765 control points (metadata version 1.1).

    Reference image: PCC_G_GA04Z1DW3LNE

    Star search aperture: 6.45 pixels

    1 view(s)

    0 star(s)

    0 PSF fittings

    *** Error: Failure to process image file '/var/folders/77/yfgx2cv943x2gdzbhpjzk2hr0000gn/T/PCC_G_GA04Z1DW3LNE.xisf': Could not locate any stars in the image

  • BlockHeadBlockHead
    Hi Reggie,

    Did you see my video on this?


    The first error says explicitly there are no stars in the catalog. This means there is likely a hole in the catalog. So I followed my directions in the video referenced above... and I see that yep..a big hole on that field for DR10. Using DR9...and everything works without an issue.

    -the Blockhead
    Capture.JPG
    1919 x 1118 - 431K
  • Reggie JonesReggie Jones
    Thanks Adam - I did see that video some time ago but I forgot all about that.  One more video to review again...

    Reggie
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