Thank you for the information. I'm studying the effects of debris in space and how it can pose problems for star trackers. I'm eager to hear your opinion on this. What do you think?.
The star tracker's internal catalog knows where each of those stars are with respect to the inertial frame. So once its identified some stars, it knows how it is oriented with respect to the inertial frame. And then since its orientation with respect to the spacecraft bus is also known, it can calculate what the orientation of the spacecraft reference frame is with respect to the inertial frame. And all this can be done with quaternions or direction cosine matrices
Thank you for the information. I'm studying the effects of debris in space and how it can pose problems for star trackers. I'm eager to hear your opinion on this. What do you think?.
This is lovely! thank you🎉🎉
Once we identify the star then how do we get its attitude "the quaternion ".
The star tracker's internal catalog knows where each of those stars are with respect to the inertial frame. So once its identified some stars, it knows how it is oriented with respect to the inertial frame. And then since its orientation with respect to the spacecraft bus is also known, it can calculate what the orientation of the spacecraft reference frame is with respect to the inertial frame. And all this can be done with quaternions or direction cosine matrices
How did they do this in the 60s?
What exactly are the quaternions here? I mean how are they different or same from the normal quaternions that we study?