Photometry script question

[astrodoc71]

Just downloaded 1.8 RC5 with the photometry script. Unfortunately it won't plate solve my image. When I open the 'configure' button, everything appears to be listed there correctly including the image coordinates, but in the process console it claims that the " image has no coordinates"?

[vicent_peris]

Hi!

It could be a problem of your focal lenght... Did you set up it correctly in the solver parameters?

Regards,
Vicent.

[astrodoc71]

You mean under 'image parameters'? Both focal length and resolution are listed there correctly.

[vicent_peris]

Hmmm, I should take a look at your image to see what's happening.


V.

[Andres.Pozo]

Could you post a copy of the console log?

[astrodoc71]

I have attached the process console info as a pdf. The image file can be downloaded here: https://www.adrive.com/public/dXQeKA/M65c.FIT

 Thanks guys! Incidentally it does plate solve in my capture program (CCDSoft)

[Andres.Pozo]

The image solves without problems. I used the parameters of the attached screen capture.

The result is:

Code: [Select]

===============================================================================
Referentiation Matrix (Gnomonic projection = Matrix * Coords[x,y]):
        -0.000250744790     +0.000142023514     +0.119387772900
        +0.000142259313     +0.000250516153     -0.236591615091
        +0.000000000000     +0.000000000000     +1.000000000000
Resolution ........ 1.037 arcsec/pix
Rotation .......... -29.528 deg (flipped)
Focal ............. 1789.68 mm
Pixel size ........ 9.00 um
Field of view ..... 26' 27.0" x 17' 38.0"
Image center ...... RA: 11 18 55.590  Dec: +13 05 17.94
Image bounds:
   top-left ....... RA: 11 19 24.979  Dec: +12 51 06.11
   top-right ...... RA: 11 17 50.483  Dec: +13 04 09.27
   bottom-left .... RA: 11 20 00.706  Dec: +13 06 25.60
   bottom-right ... RA: 11 18 26.144  Dec: +13 19 29.56
===============================================================================


[astrodoc71]

Hmmm. So if my screen looks like yours why doesn't it run on my machine?

[Andres.Pozo]

Have you set the magnitude filter to 15? With a lower value there are not enough stars for solving the image.

[astrodoc71]

OK I did miss that. Magnitude was 12. However even after I changed it to 15, I still get an error message which now reads "could not find any stars in the catalog" ?

[Andres.Pozo]

You have not configured the Stars tab in the script. Please click on the help button (lower left of the dialog).

Also, the image have you have posted is not calibrated. For best results you should do a full calibration on the image (BIAS/DARK/FLAT).

[astrodoc71]

Success!  Once I set up the parameters also under stars tab as you pointed out it ran perfectly fine! Thanks!

Now how can I figure out which stars in the table correspond to which of the 'green squares' in the image?

[Andres.Pozo]

Success!  Once I set up the parameters also under stars tab as you pointed out it ran perfectly fine! Thanks!

Now how can I figure out which stars in the table correspond to which of the 'green squares' in the image?

Run AnnotateImage with the same catalog as AperturePhotometry ,

[astrodoc71]

PPMXL does not appear in the image annotation script? Perhaps I should first rerun the photometry script using a different catalog?

[Andres.Pozo]

You can add a new layer using the green cross under the layer list.