Version 6.0.3 reports lower resolutions for same Alpy data

[John Coffin]

Hi, I upgraded my ISIS from version 6.0 to 6.0.3 today.
I was surprised to find that my Alpy spectrum was reported as having a resolution of 455. I reinstalled version 6.0 and processed the same data and the resolution was 527.
Then I went back and reprocessed some more data and found a similar discrepancy between the two versions.
Does anyone know why this should be?
Thanks, John

[Robin Leadbeater]

I can confirm this.

I see a difference between 6.0.3 and 5.9.3 (my standard as I prefer the black body correction to the response) 5.9.3 gave R=537 and 6.0.3 gave 522 using the same data and the same xml file so the settings should have been identical

Cheers
Robin

[Robin Leadbeater]

Comparing the log files I see there is a difference in the X1, X2 limits. I do not know what these are or how they are used but perhaps they have something to do with it?

ISIS_593-603_log.png (6.33 KiB) Viewed 4684 times

Cheers
Robin

[John Coffin]

Thanks Robin, I’ve emailed me to see if you can send me a copy of v 5.9.3
John

[Robin Leadbeater]

Hi John,

You can download previous versions of ISIS from Christian's website here
http://www.astrosurf.com/buil/isis/download/

Cheers
Robin