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Tagged with astrodynamicsframes
4 questions
8votes
1answer
453views
Conversion of velocity vectors between ICRF frames with different central objects
Following the very nice answers to this question, I am trying to implement an appropriate procedure for change of central body during orbit propagation. The very interesting thesis by Mana Vautier ...
- 1,790
18votes
2answers
1kviews
How can we determine the most appropriate central body for orbit propagation?
I have recently been experimenting with expanding my numerical propagator to satellites that orbit central bodies other than Earth. I started with the Moon (using GRGM1200B gravity model), and found ...
- 1,790
5votes
1answer
442views
Difference between rotated frame and rotating frame
Suppose we have a spacecraft orbiting around Earth and we neglect all effects of Earth's $z$-axis motion, i.e., no wobble, precession, or nutation. For simplicity, we only assume a rotation rate $\...
3votes
1answer
499views
Reference frames - why do I need to convert to Geocentric Equatorial State Vector to solve equation of motion?
I am asking this question in relation to an example shown in the 'Orbital Mechanics for Engineering Students' book by Howard Curtis (third edition) pp659 example 12.1. The example is demonstrating how ...
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