Spacecraft Dynamics block coordinate system conversion

I hope to use the output attitude quaternion in LVLH frame(q_lvlh2b) and ICRF frame(q_icrf2b) at the same time.

But now when I select one of them, the other one disappears. Is there a way to solve this problem?

Answer 1

[Ganapathi Subramanian]

Hi,

It is my understanding that you are working on Spacecraft Dynamics Block and wants to know how to use output quaternion in LVLH and ICRF frame at the same time. It is not possible to use both at the same time. You can use only one output quaternion either LVLH frame or ICRF frame at one time.

Answer 2

[Gökhan]

Hi, This question is almost a year old however I happen to see it now. I am not sure if it would work but my humble suggestion would be as follows. Why not use two identical spacecraft dynamics blocks, set the initial conditions exactly the same, input exactly the same Mb values- in which case one would assume they work identical and produce the same output. However set one of them q_icrf_2b and the other one as q_lvlh_2b. I believe you can use both outputs in this fashion?