Questions tagged [iraf]
20 questions
0
votes
1 answer
IRAF imalign will not shift images, incorrectly reports unequal number of input and output images, why?
I recently started working in IRAF as I have the need for image data reduction.
I tried to stack .fit images using imalign function, but I get this error message:
This was a test, so I have only 4 images in input and output lists, and I have 4…
elizevin
- 101
- 1
- 9
0
votes
2 answers
Image not display and error: PANIC in `/home/anaconda2/envs/iraf27/iraf/noao/bin.linux/x_apextract.e': Write to IPC with no reader
I am trying to run the
NTT pessto pipeline
that uses PyRAF. I have everything installed but when I try to test if it works I have two issues, first, the image enviroment opens but the image is never displayed. Then when I try to Edit apertures…
Pris
- 1
- 2
0
votes
1 answer
variable limits when cutting pixels from a fits image with imcopy (IRAF) in python (pyraf)
I am trying to use pyraf to use the iraf's task imcopy in one code in python. My problem is that you have to specify the range in x and y in which you want to cut the image, but I want those limits to be variables, since everything is within a loop…
Enrique
- 55
- 7
0
votes
1 answer
IRAF fitsparams task deletes only the leftmost point
I am using IRAF on ubuntu 16.04 and a task called fitparams in the
photcal.fitparams package will not let me delete the points close to the cursor. It deletes the left-most point independent of the cursor position.
I can't find help anywhere in this…
akaur
- 389
- 1
- 6
- 22
0
votes
0 answers
How to extract the "tinfo" IRAF table information
I want to know how to get the information from a table using tinfo. basically I have a table named "coords" and I am running:
tinfo("coords")
but I dont know how to get the output from this task. For example the number of columns "ncols". From the…
Lorz.Astro
- 23
- 7