Quote:
Originally Posted by ericwbenson
What software are you using to save the ST8 FITS file? VSpec is particular about the data type used in the FITS file. The latest VSpec (v3.7.2) I can get it to read 32bit float or 16 bit integers saved in MaxIm (with compression turned off). Previous versions had trouble with one or the other (can't recall which)
EB
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CCDOps (?) v5 I think it is
. I'll have to fire up the lappy to make sure.
Quote:
Originally Posted by Terry B
If you save the file in Iris as a .pic file then VSpec is happy to open it.
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Thanks Terry I'll try that! Sounds simple... no extra step in the work flow.
Quote:
Originally Posted by robin_astro
Hi Al,
The tadpole in the zero order is probably an effect of the wedge prism. (Instead of a nice round zero order image you get a little very low dispersion spectrum with a bit of comma as well thrown in) With careful focussing, the spectrum itself should be (a little bit) sharper though, particularly at the red end.
Re Vspec and fits, I have just posted some ideas on Ken's Yahoo group
Robin
(In a wet and miserable NW England  ) |
Aaaahhhh... thanks Robin! You've saved me much frustration trying to solve something I needn't!
I did manage to process a raw spectrum of Eta Carina enough to find my dispersion was 10A/pixel, but I can extend it out further (up into the baffle tube of the C11 so it doesn't affect focus)
.
Al.