Nope, that model is acually the ISO (Infrared space observatory) which was run by ESA between 1995 and 1998 (I think)!
I've made a model of the SIRTF as well, it's also on my spacecraft page, further down. Let me just check... Yeah SIRFT is number 22. I'm in the process of making an xyz for it now, and i'll put that up later on today.