"Too Many Input/Output Arguments" error for nrlmsise00 function

I am trying too run a script that involves this function:

rho = nrlmsise00(altitude, year, month, day, hour, minute, second);

Every time I try to fix it, I get the same errors. If I reduce the input arguments, I get the too many input arguments error until I reduce it to nothing (then I get the too many output arguments error). I don't have the Aerospace toolbox, so I downloaded the nrlmsise00 function off of this site, and I don't know if it has been added to the path, but I tried every way to add it. What are your thoughts? Please help, thank you.

[Torsten]

If you downloaded it here

https://uk.mathworks.com/matlabcentral/fileexchange/56253-nrlmsise-00-atmosphere-model

you will see that the function has neither inputs nor outputs.

[Jacob]

@Torsten Yes, that is the one, but should I just put in the function by itself in my orbit propagation code? I'm trying to get a density out of it.

Answer 1

[Torsten]

The results for the defined testcase seem to coincide with what is stated in the Documentation (see below).

You will have to adapt the function nrlmsise00 according to your needs (which means you have to understand which data you have to supply (input structure) and which data you can get out of the function (output structure)) .

nrlmsise00()

6.665177E+05 1.138806E+08 1.998211E+07 4.022764E+05 3.557465E+03 4.074714E-15 3.475312E+04 4.095913E+06 2.667273E+04 1.250540E+03 1.241416E+03 

3.407293E+06 1.586333E+08 1.391117E+07 3.262560E+05 1.559618E+03 5.001846E-15 4.854208E+04 4.380967E+06 6.956682E+03 1.166754E+03 1.161710E+03 

1.123767E+05 6.934130E+04 4.247105E+01 1.322750E-01 2.618848E-05 2.756772E-18 2.016750E+04 5.741256E+03 2.374394E+04 1.239892E+03 1.239891E+03 

5.411554E+07 1.918893E+11 6.115826E+12 1.225201E+12 6.023212E+10 3.584426E-10 1.059880E+07 2.615737E+05 2.819879E-42 1.027318E+03 2.068878E+02 

1.851122E+06 1.476555E+08 1.579356E+07 2.633795E+05 1.588781E+03 4.809630E-15 5.816167E+04 5.478984E+06 1.264446E+03 1.212396E+03 1.208135E+03 

8.673095E+05 1.278862E+08 1.822577E+07 2.922214E+05 2.402962E+03 4.355866E-15 3.686389E+04 3.897276E+06 2.667273E+04 1.220146E+03 1.212712E+03 

5.776251E+05 6.979139E+07 1.236814E+07 2.492868E+05 1.405739E+03 2.470651E-15 5.291986E+04 1.069814E+06 2.667273E+04 1.116385E+03 1.112999E+03 

3.740304E+05 4.782720E+07 5.240380E+06 1.759875E+05 5.501649E+02 1.571889E-15 8.896776E+04 1.979741E+06 9.121815E+03 1.031247E+03 1.024848E+03 

6.748339E+05 1.245315E+08 2.369010E+07 4.911583E+05 4.578781E+03 4.564420E-15 3.244595E+04 5.370833E+06 2.667273E+04 1.306052E+03 1.293374E+03 

5.528601E+05 1.198041E+08 3.495798E+07 9.339618E+05 1.096255E+04 4.974543E-15 2.686428E+04 4.889974E+06 2.805445E+04 1.361868E+03 1.347389E+03 

1.375488E+14 0.000000E+00 2.049687E+19 5.498695E+18 2.451733E+17 1.261066E-03 0.000000E+00 0.000000E+00 0.000000E+00 1.027318E+03 2.814648E+02 

4.427443E+13 0.000000E+00 6.597567E+18 1.769929E+18 7.891680E+16 4.059139E-04 0.000000E+00 0.000000E+00 0.000000E+00 1.027318E+03 2.274180E+02 

2.127829E+12 0.000000E+00 3.170791E+17 8.506280E+16 3.792741E+15 1.950822E-05 0.000000E+00 0.000000E+00 0.000000E+00 1.027318E+03 2.374389E+02 

1.412184E+11 0.000000E+00 2.104370E+16 5.645392E+15 2.517142E+14 1.294709E-06 0.000000E+00 0.000000E+00 0.000000E+00 1.027318E+03 2.795551E+02 

1.254884E+10 0.000000E+00 1.874533E+15 4.923051E+14 2.239685E+13 1.147668E-07 0.000000E+00 0.000000E+00 0.000000E+00 1.027318E+03 2.190732E+02 

5.196477E+05 1.274494E+08 4.850450E+07 1.720838E+06 2.354487E+04 5.881940E-15 2.500078E+04 6.279210E+06 2.667273E+04 1.426412E+03 1.408608E+03 

4.260860E+07 1.241342E+11 4.929562E+12 1.048407E+12 4.993465E+10 2.914304E-10 8.831229E+06 2.252516E+05 2.415246E-42 1.027318E+03 1.934071E+02 


DAY            172          81         172         172         172
UT           29000       29000       75000       29000       29000
ALT            400         400        1000         100         400
LAT             60          60          60          60           0
LONG           -70         -70         -70         -70         -70
LST             16          16          16          16          16
F107A          150         150         150         150         150
F107           150         150         150         150         150


TINF       1250.54     1166.75     1239.89     1027.32     1212.40
TG         1241.42     1161.71     1239.89      206.89     1208.14
HE       6.665e+05   3.407e+06   1.124e+05   5.412e+07   1.851e+06
O        1.139e+08   1.586e+08   6.934e+04   1.919e+11   1.477e+08
N2       1.998e+07   1.391e+07   4.247e+01   6.116e+12   1.579e+07
O2       4.023e+05   3.263e+05   1.323e-01   1.225e+12   2.634e+05
AR       3.557e+03   1.560e+03   2.619e-05   6.023e+10   1.589e+03
H        3.475e+04   4.854e+04   2.017e+04   1.060e+07   5.816e+04
N        4.096e+06   4.381e+06   5.741e+03   2.616e+05   5.479e+06
ANM 0    2.667e+04   6.957e+03   2.374e+04   2.820e-42   1.264e+03
RHO      4.075e-15   5.002e-15   2.757e-18   3.584e-10   4.810e-15


DAY            172         172         172         172         172
UT           29000       29000       29000       29000       29000
ALT            400         400         400         400         400
LAT             60          60          60          60          60
LONG             0         -70         -70         -70         -70
LST             16           4          16          16          16
F107A          150         150          70         150         150
F107           150         150         150         180         150


TINF       1220.15     1116.39     1031.25     1306.05     1361.87
TG         1212.71     1113.00     1024.85     1293.37     1347.39
HE       8.673e+05   5.776e+05   3.740e+05   6.748e+05   5.529e+05
O        1.279e+08   6.979e+07   4.783e+07   1.245e+08   1.198e+08
N2       1.823e+07   1.237e+07   5.240e+06   2.369e+07   3.496e+07
O2       2.922e+05   2.493e+05   1.760e+05   4.912e+05   9.340e+05
AR       2.403e+03   1.406e+03   5.502e+02   4.579e+03   1.096e+04
H        3.686e+04   5.292e+04   8.897e+04   3.245e+04   2.686e+04
N        3.897e+06   1.070e+06   1.980e+06   5.371e+06   4.890e+06
ANM 0    2.667e+04   2.667e+04   9.122e+03   2.667e+04   2.805e+04
RHO      4.356e-15   2.471e-15   1.572e-15   4.564e-15   4.975e-15


DAY            172         172         172         172         172
UT           29000       29000       29000       29000       29000
ALT              0          10          30          50          70
LAT             60          60          60          60          60
LONG           -70         -70         -70         -70         -70
LST             16          16          16          16          16
F107A          150         150         150         150         150
F107           150         150         150         150         150


TINF       1027.32     1027.32     1027.32     1027.32     1027.32
TG          281.46      227.42      237.44      279.56      219.07
HE       1.375e+14   4.427e+13   2.128e+12   1.412e+11   1.255e+10
O        0.000e+00   0.000e+00   0.000e+00   0.000e+00   0.000e+00
N2       2.050e+19   6.598e+18   3.171e+17   2.104e+16   1.875e+15
O2       5.499e+18   1.770e+18   8.506e+16   5.645e+15   4.923e+14
AR       2.452e+17   7.892e+16   3.793e+15   2.517e+14   2.240e+13
H        0.000e+00   0.000e+00   0.000e+00   0.000e+00   0.000e+00
N        0.000e+00   0.000e+00   0.000e+00   0.000e+00   0.000e+00
ANM 0    0.000e+00   0.000e+00   0.000e+00   0.000e+00   0.000e+00
RHO      1.261e-03   4.059e-04   1.951e-05   1.295e-06   1.148e-07

Answer 2

[Walter Roberson]

The nrlmsiese00 function at https://www.mathworks.com/matlabcentral/fileexchange/56253-nrlmsise-00-atmosphere-model does not accept any inputs and does not produce any outputs.

Instead of inputs, you need to adjust the values in the lines

flags = struct('switches',zeros(24,1),'sw',zeros(24,1),'swc',zeros(24,1));
ap_a = struct('a',zeros(7,1));
input = struct('year',0,'doy',0,'sec',0,'alt',0,'g_lat',0,'g_long',0,'lst',0,'f107A',0,'f107',0,'ap',0,'ap_a',ap_a);