Problems with the daofind task
chloe wrote on May 03, 2010
Hi,
I've got some problems with the daofind task.
When I try to run it with the daophot package, I have an error message like "Error, floating point divide by zero".
But when I run daofind with the apphot package (same parameters), It runs perfectly.
Somebody knows why, or had the same problems?
Thank you very much!
Bye,
Chloé.
I've got some problems with the daofind task.
When I try to run it with the daophot package, I have an error message like "Error, floating point divide by zero".
But when I run daofind with the apphot package (same parameters), It runs perfectly.
Somebody knows why, or had the same problems?
Thank you very much!
Bye,
Chloé.
Mike Fitzpatrick wrote on May 03, 2010
A floating point error is sometimes a coding bug, and sometimes an error caused by the data (e.g zero-valued pixels). The DAOFIND executable is actually the same between DAOPHOT and APPHOT and the default parameters are the same for both so I don't fully understand why it would work in one case and not the other.
There are no known bugs in the task and not much more I can say without being able to reproduce the problem. To do the latter, i would need to know the IRAF version, what platform you're using, the parameters for the task and you'd need to upload the problem image to the anonftp at ftp://iraf.noao.edu/pub.
-Mike
There are no known bugs in the task and not much more I can say without being able to reproduce the problem. To do the latter, i would need to know the IRAF version, what platform you're using, the parameters for the task and you'd need to upload the problem image to the anonftp at ftp://iraf.noao.edu/pub.
-Mike
Last post on May 03, 2010