John:

Ok, the 100-200km files are ready. They are:

File Name			lat,lon

tscir5.ut16.cm3.100-200.dat	-52.5,130
tscir6.ut17a.cm3.100-200.dat	-47.5,35
tscir6.ut17b.cm3.100-200.dat	-12.5,160
tscir8.ut2.cm3.100-200.dat	-42.5,-35
tscir8.ut3a.cm3.100-200.dat	 67.5,95
tscir8.ut3b.cm3.100-200.dat	 47.5,55

These each contain the fields tn,o2,o,n2 in that order.
Sorry I spaced out about the locations -- hard to keep
all this stuff straight. Better check these over carefully
to make sure I got it right. Meanwhile I'll start work on 
the orbit track code using some of the orbit data files you 
sent last year.

--Ben