> -----Original Message-----
> From: Steve Larson [mailto:slarson@pirl.lpl.Arizona.EDU]
> Sent: Tuesday, December 23, 2003 12:00 PM
> To: mgordon@mail.arc.nasa.gov
> Cc: slarson@pirlserver.lpl.arizona.edu
> Subject: Re: WHT Ring Plane Crossing Archive
> 
> Mitch-
> 
> 	I have looked at (finally) the WHT RPX disc and have these
> problems/comments:
> 
> I was unable to access the .img binary files from IRAF (what I usually
> use for data analysis) - I get an error message "ERROR: Seek error on
> file...". Used the aareadme treatment to fix the line termination for
> UNIX and got the same error. The .lbl file claims good fits format
> (2880 byte blocks) and # records in header. Does it matter that the
> header is ascii and the image is binary? I seem to recall that fits
> images in the PDS/SBN required concatenating header and image files
> that IRAF could then display, but that is not the case here. 

No, that should not be a problem.

> IRAF does not display the headers with the imhead command. Looks like
> a problem recognizing the files within IRAF. Unfortunately, I
> am not aware of any other fits display on my Linux machine. I
> had this same problem with the images in the calib, e_ring and
> mainring directories. Maybe I am doing something dumb.
> 
> I had no problem seeing the gif browse images.
> I looked at all the ascii files (.lbl, .txt, .tab,.cat, etc) and they
> seem to be in order and provide very useful information (I learned
> some things about the WHT from insthost.cat).
> 
> Calib: calinfo.txt the .lbl files have all the necessary entries to
> understand the flat-field image files. Was very happy to see PDF files
> included showing the filter curves, although some of the .ps files
> would crash the Red Hat Linus "Konqueror". This may be a problem with
> my machine, and I can access all the .pdf equivalents.
> 
> Let me know if there is something I should do and I will finish
> this review before your deadline.
> 
> Best wishes for the holidays.
> 
> -Steve

===============



> -----Original Message-----
> From: Steve Larson [mailto:slarson@pirl.lpl.Arizona.EDU]
> Sent: Monday, December 29, 2003 9:43 AM
> To: mgordon@mail.arc.nasa.gov
> Cc: slarson@pirlserver.lpl.arizona.edu
> Subject: RE: WHT Ring Plane Crossing Archive
> 
> Mitch-
> 
> 	By copying CDROM images to disc, I can access the images from DS9
> and read the headers, but not through IRAF. It is entirely possible that
> I have a corrupted IRAF, and I will be looking into that next week. In
> principle, I still think that one should be able to access the data
> directly from the CDROM rather than to have to copy them to disc first.

I'm not sure what was going wrong. Two other reviewers used Linux and 
did not report any difficulties. One used xv, and other did not 
indicate what he used. For that matter, no one indicated whether they 
were reading from the disk or copying files to the hard drive first. We 
were able to open the files directly from the disk under Mac OsX using 
DS9, FITSVIEW, and NASAVIEW under windows. We've upgraded the software 
used to burn the disks just in case. However, the PDS has moved to 
electronic rather than hard copy as the standard method for 
distributing data sets, so this should not pose a problem for future 
users. 

> For
> now, I can say that looking at about 40 images in the ering and mainring/
> rawimages, I did not note one problem (Gawd those WHT headers are long -
> a clear challenge to the HST headers ;-) I think the WHT disc is ready
> for prime time.
 
> 	I will be out of email contact for the next three days, but let
> me know if you need more on this.
> 
> Happy New Year!
> 
> -Steve