PixInsight

Image Solver

updated: 2024-07-30

Activation

Script > Image Analysis > Image Solver




By clicking on the OK button the FITS or XISF file will be updated with the astrometric information required for SPCC Spectrophotometric Color Calibration or PCC - Photometric Color Calibration.


Note: If the plate solving fails, this may also be because the image contains a very bright background (usually green) and the image solver cannot recognize the stars clearly enough as a result. ABE - Automatic Background Extraction has worked as a workaround to remove too much background noise from the image.


Plate solve results

Based on the active window (a fully stretched image of the Pleiades) it will return the following results:


Saving keywords...

Saving properties...

Saving control points...

Saved 431 control points.


Image Plate Solver script version 5.6.6

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Referentiation matrix (world[ra,dec] = matrix * image[x,y]):

 -4.31563274e-04  +9.83722665e-05  +7.55472335e-01

 -9.83934183e-05  -4.31518960e-04  +8.12897096e-01

WCS transformation ....... Thin plate spline

Control points ........... 387

Spline lengths ........... l:387 b:387 X:387 Y:387

Projection ............... Gnomonic

Projection origin ........ [2072.245168 1411.297920] px -> [RA:  3 47 05.169  Dec: +24 06 58.65]

Resolution ............... 1.593 arcsec/px

Rotation ................. -12.840 deg

Reference system ......... ICRS

Observation start time ... 2022-10-24 02:20:51 UTC

Observation end time ..... 2022-10-24 02:23:51 UTC

Focal distance ........... 599.35 mm

Pixel size ............... 4.63 um

Field of view ............ 1d 50' 3.1" x 1d 14' 56.6"

Image center ............. RA:  3 47 05.159  Dec: +24 06 59.19  ex: +0.000107 px  ey: +0.000453 px

Image bounds:

   top-left .............. RA:  3 50 25.106  Dec: +24 55 36.31  ex: -0.002612 px  ey: +0.000480 px

   top-right ............. RA:  3 42 32.733  Dec: +24 31 01.41  ex: +0.000490 px  ey: -0.001705 px

   bottom-left ........... RA:  3 51 35.898  Dec: +23 42 27.03  ex: -0.000965 px  ey: +0.000720 px

   bottom-right .......... RA:  3 43 47.820  Dec: +23 18 06.00  ex: -0.000060 px  ey: +0.000705 px  


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