imcentroid on mosaiced fits files
JanRap wrote on Sep 14, 2009
Hi
I am trying to perform imcentroid on a list of SALT fits images. The images are mosaics of images from 2 CCDs with 2 amplifiers each, used in Frame Transfer mode. A more detailed description of the SALTICAM instrument can be seen at http://www.salt.ac.za/telescope/instrumentation/salticam/.
Although the extensions are not displayed when listing the images in a terminal, a [SCI] extension appears when opening them in ds9, and my experience is that this extension has to be added when performing any IRAF task on these images.
I have tried to perform imcentroid with and without the extensions added to the list required by the "input" parameter, but in both cases imcentroid fails to open the images. I made sure that the .coo file and the image list are in the same directory as the fits files and I ran the command from the correct directory.
Here is an example of the error message and the preceding code:
Any help would be greatly appreciated.
I am trying to perform imcentroid on a list of SALT fits images. The images are mosaics of images from 2 CCDs with 2 amplifiers each, used in Frame Transfer mode. A more detailed description of the SALTICAM instrument can be seen at http://www.salt.ac.za/telescope/instrumentation/salticam/.
Although the extensions are not displayed when listing the images in a terminal, a [SCI] extension appears when opening them in ds9, and my experience is that this extension has to be added when performing any IRAF task on these images.
I have tried to perform imcentroid with and without the extensions added to the list required by the "input" parameter, but in both cases imcentroid fails to open the images. I made sure that the .coo file and the image list are in the same directory as the fits files and I ran the command from the correct directory.
Here is an example of the error message and the preceding code:
boyden> imcentroid > 'centroids.txt'
List of input images (list.txt):
Reference image (mbxpS200806010100.fits[SCI]):
Reference coordinates file (20080601_100.coo):
Warning: Cannot open image (list.txt)
boyden>
Any help would be greatly appreciated.
Mike Fitzpatrick wrote on Sep 14, 2009
Try passing in the image list with '@list.txt' to tell iraf to read from the file, using just 'list.txt' means to use that filename (which of course isn't an image).
-Mike
-Mike
JanRap wrote on Sep 14, 2009
Yes, it works fine now. :oops: Thanks Mike.
-Daniël
-Daniël
Last post on Sep 14, 2009