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Hello,

I installed on a MAC (OS X 10.8.5) the latest IRAF version (2.16.1) and the rvsao 2.8 as external package with the make rvsao in the extern directory. When I try to run xcsao, I find this error:

ERROR: MWCS: coordinate system not defined (logical)

NOTA bene: this error is always there. I even tried to use as input spectrum a template which worked in previous version of IRAF and rvsao, so I do not think that this is a problem of the current data set.

Do you have any idea how I can fix it?

Many thanks!

There may be several explanations for the error, but it would be best to see a header for one of the problem images. Could you please post it or else email me (fitz - at - iraf.net) the header. If a task such as SPLOT also fails with the same error it could be a problem in the header itself, otherwise it may be specific to XCSAO.

Hi Mike,

curiously enough, one of our users here has exactly the same problem. It only shows up in IRAF v2.16.1 though (which includes RVSAO v2.8.1), both in Linux (Fedora 19 x86_64) and in Mac OS X Maverick.
It works correctly in IRAF v2.16, which includes RVSAO 2.7.8, on the same two platforms.

The simplest way to check it is to use the listspec task.






So it seems to be something to do with the RVSAO version.

The fits file is available at ftp://ftp.iac.es/out/ncaon/spec002_config2.fits

Thanks a lot (also for providing the new linux binaries for RVSAO so quickly)!

Nicola

Hello Nicola,

I got the error message you posted
lpar rvsao
(version = "RVSAO 2.8.1, May 25, 2012")
(newversion = "RVSAO 2.8.1, May 25, 2012")
(motd = yes) type the welcome banner?
(mode = "ql")
($nargs = 0)
(test = "RVSAO 2.8.1, May 25, 2012")

then I run a self_update in the extern directory of IRAF
.
The message of rvsao stayed the same, but when running listspec, I get:


rvsao\$this->_split2($m[0]) listspec N7507.fits
ERROR: task `listspec' has no param file

Any news when rvsao will be updated?

Thanks, Emanuela

well, I manually installed rvsao, version 2.7.8, following the instructions in the INSTALL file: if I execute:
lpar rvsao

it now shows:


rvsao\$this->_split2($m[0]) lpar rvsao
(version = "RVSAO 2.8.1, May 25, 2012")
(newversion = "RVSAO 2.7.8, November 20, 2009")
(motd = yes) type the welcome banner?
(mode = "ql")
($nargs = 0)
(test = "RVSAO 2.7.8, November 20, 2009")

and it is working.

B.t.w. I also noticed a problem compiling in the same way version 2.8.1: the file librv.a does not seem to be found by the mkpkg compiler.

Cheers,

Emanuela

Just to complete this thread: The repo was recently updated with RVSAO v2.8.2 which appears to fix the WCS problems mentioned here. To install the update in a v2.16 system, simply do

% cd $iraf/extern
% make rvsao