Below is the list of parameters stored in the BPASS binary
models. Please contact j.eldridge@auckland.ac.nz if you have any
questions. 

Each file is called "sneplot-zXXX-M1-q-logP" where:
zXXX is the metallcity 
M1 is the initial mass of the primary star
q is M2/M1, the initial mass of secondary over the initial mass of primary
logP is the log of the period in days

The most useful parameters are:
- 1-16, parameters of the primary star
- 35-38 parameters of the binary
- 47-49 parameters of the companion (if undefined no companion or not visible)
- 54-73 magnitudes for binary
- 74-93 magnitudes for companion (if undefined no companion or not visible)

Column Number - Variable

1 - Model timestep number
2 - AGE/yrs
3 - LOG10(R1/Rsun)
4 - LOG10(T_1eff/K)
5 - LOG10(L1/Lsun)
6 - Total Mass, M1/Msun
7 - He core mass star 1/Msun
8 - CO core mass star 1/Msun
9 - ONe core mass star 1/Msun
10 - ----
11 -  Surface mass fractions for X
12 -  Surface mass fractions for Y
13 -  Surface mass fractions for C
14 -  Surface mass fractions for N
15 -  Surface mass fractions for O
16 -  Surface mass fractions for Ne
17 - Mass of Hydrogen star 1/Msun
18 - Mass of Helium star 1/Msun
19 - Mass of Carbon star 1/Msun
20 - Mass of Nitrogen star 1/Msun
21 - Mass of Oxygen star 1/Msun
22 - Mass of Neon star 1/Msun
23 - Mass of Magnesium star 1/Msun
24 - Mass of Silicon star 1/Msun
25 - Mass of Iron star 1/Msun
26 - Enveleope Binding Energy / Joules
27 - Total Star binding energy / Joules
28 - M(Remnant)/Msun for weak-SNe (1e43J)
29 - M(Ejecta mass)/Msun for weak-SNe (1e43J)
30 - M(Remnant)/Msun for SNe (1e44J)
31 - M(Ejecta mass)/Msun for SNe (1e44J)
32 - M(Remnant)/Msun for super-SNe (1e45J)
33 - M(Ejecta mass)/Msun for super-SNe (1e45J)
34 - Angular momentum of binary
35 - Period of binary in days
36 - log(Separation of binary/Rsun)
37 - Mass of star 1, M1/Msun
38 - Mass of star 2, M2/Msun
39 - Total mass of binary, MTOTAL/Msun
40 - DM1W - wind mass loss rate of star 1
41 - DMW2 - wind mass loss rate of star 2
42 - DM1A - accretion of mass
43 - DM2A - accretion of mass
44 - DM1R - Roche Lobe Overflow of star 1
45 - DM2R - Roche Lobe Overflow of star 2
46 - DANGJJ - Change of angular momentum
47 - DLOG10(R2/Rsun)
48 - DLOG10(T2/K)
49 - DLOG10(L2/Lsun)
50 - Roche lobe overflux of star 2
51 - modelimf - total IMF probability of stars
52 - mixedimf - IMF probability of rejuvenated stars 

Following are for magnitudes of both stars in binary:

53 - V-I
54 - U
55 - B
56 - V
57 - R
58 - I
59 - J
60 - H
61 - K
62 - u
63 - g
64 - r
65 - i
66 - z
67 - f300w
68 - f336w
69 - f435w
70 - f450w
71 - f555w
72 - f606w
73 - f814w

Following are for the magnitudes of the secondary star in the binary alone:

74 - U
75 - B
76 - V
77 - R
78 - I
79 - J
80 - H
81 - K
82 - u
83 - g
84 - r
85 - i
86 - z
87 - f300w
88 - f336w
89 - f435w
90 - f450w
91 - f555w
92 - f606w
93 - f814w