All Questions
Tagged with astrodynamicscalculation
5 questions
5votes
2answers
309views
Relationship between osculating eccentricity and Brouwer-Lyddane short eccentricity
I was under the impression that the mean elements are given by taking the average over an orbital period of the satellite, i.e.: $e_{mean}(t) = \int_{t}^{t+T(t)}e_{osc}(t')dt'[0.367in]$ where $T(t)$ ...
- 179
2votes
1answer
246views
Predicting Satellite Flyover Calculations by Hand
Recently I used transit-finder.com to get a really cool picture of the ISS transiting the sun. The prediction from the website was spot-on. Since then I'm absolutely fascinated by how the prediction ...
- 21
0votes
0answers
386views
James Webb Space Telescope Velocity Loss Formula or how fast will JWST be going on L+26
I was never great at math but now I wish I would have taken it more seriously. We have an office bet going and I need to come up with a formula to figure out the future velocity the JWST. I was able ...
5votes
1answer
153views
Please explain a way of calculation of Lagrange multiplier in algorithm of low thrust transfer
In David Vallado's book 'Fundamental of Astrodynamics and Applications', chapter 6.7. ("Continuous-Thrust Transfers") there is an algorithm #47: Low Thrust Transfer. In this algorithm a ...
7votes
1answer
272views
Calculation of V1 (orbital speed) during ascent
I am studying instrumentation of NASA's Orion spacecraft, and there is a readout for V1 (I am assuming this is the "first orbital velocity", for circular orbit), and it seems to be in small decimals. ...
- 513
