from T. Urbanietz et al. PCPP https://link.springer.com/article/10.1007/s11090-020-10151-6

The first line gives some information on the numbers of each row.

The second line gives the number data points following (=269).

Then 269 lines are following describing each data point.

Meaning of the numbers in each row:

no = number of the data point

idx = species index (1 = CH4, 2 = O3, 3 = O2, 4 = O, 5 = CO2, 6 = CO, 7 = H2O, 8 = C, 9 = H2, 10 = e = electron)

c_exp = scaled species density in units of [6.00e+22 m^{-3} / scale] for time t

weight = weighting factor for data analysis ( = 1.0 for usage of raw data)

t = time in units of [3.33e-03 s]

scale = scaling factor for the species density c_exp

CH4 = initial density of CH4 in units of [6.00e+22 m^{-3} / scale] for time t=0

O3 = initial density of O3 in units of [6.00e+22 m^{-3} / scale] for time t=0

O2 = initial density of O2 in units of [6.00e+22 m^{-3} / scale] for time t=0

O = initial density of O in units of [6.00e+22 m^{-3} / scale] for time t=0

CO2 = initial density of CO2 in units of [6.00e+22 m^{-3} / scale] for time t=0

CO = initial density of CO in units of [6.00e+22 m^{-3} / scale] for time t=0

H2O = initial density of H2O in units of [6.00e+22 m^{-3} / scale] for time t=0

C = initial density of C in units of [6.00e+22 m^{-3} / scale] for time t=0

H2 = initial density of H2 in units of [6.00e+22 m^{-3} / scale] for time t=0

e = initial density of e in units of [6.00e+22 m^{-3} / scale] for time t=0