FITS to total DR rate coefficients for N-like ions.
Original paper: Mitnik and Badnell A&A425, 1153 (2004).

19/04/06
The comment of 22/12/05 referred to N-like Oxygen ONLY.

11/03/06
adf09 archived data only for NTAR1=4 initial metastables instead of 5.

22/12/05
O: n=3 pseudo orbitals were used to obtain a good target for 2-2 DR,
consequently Rydberg n started at 4. Now added-in contribution 
for n=3 Rydberg from non-pseudo calculation which gives a small low-T
peak (RR dominates though). Also count 2s2p^5 contribution to DR.

18/04/05
Fits for K,Sc,V,Mn,Co,Cu added using adf09 files from Mitnik (unpublished)
calculated as per Mitnik and badnell.

23/02/05
Z= N= headers were missing (all ions).

01/02/05 Original web release.
The total DR rate coefficients from the adf09 files of Mitnik and Badnell
have been re-fitted so as to be valid over a wider temperature range
viz. essentially the entire ADAS z-scaled range of 10*z^2 - 10^7*z^2 K,
where z is the residual charge of the electron target.

Note that the original fit coefficients for Fe were "ill-conditioned" in
the sense that if used below the minimum temperature of validity the
rate coefficient eventually blows-up exponentially because of the negative
value of E_1, leading to a positive exponential exponent.