Iron ionisation energy value query

[Claude_Pellerin]

I'm looking at fe ionisation. Wherever I look I get similar values. Probably because everybody just keeps reusing published values...
I think the value for the 24 th level is incorrect but I'm not sure how to validate this.
The published value is 195200 but I think it should be more like 197400.
Any pointer to a definitive source would be appreciated.

 

[mfb]

Why do you think it should be 197400? And where does the other value come from?

 

[Jere Kay]

Can you kindly provide us with references?