User:Urwumpe
Jump to navigation
Jump to search
OrbiterWiki administrator since december 2005
Lord of the block list
A/S/L: 33/M/Wolfsburg, germany
Occupation: Full-time software developer for computer-aided engineering solutions.
Orbiter addon developer since summer 2003.
N-Mail: Urwumpe(ät)Yahoo(döt)com
We were, We are, and we will be.
Contents
Math formulas
Nodal regression
<math>P</math> | Orbit parameter, <math>p=a \cdot (1- \epsilon^2)</math> |
<math>u</math> | corrected true anomaly, <math>u=\omega + \varphi</math> |
<math>R_E</math> | mean planetary radius |
<math>J_2</math> | non spherical gravity term |
<math>i</math> | inclination |
<math>\omega</math> | Argument of perigee |
<math>\epsilon</math> | eccentricity |
<math>\frac{d\Omega}{du} = -3\cdot J_{2}\cdot (\frac{R_E}{p})\cdot \sin^2{u} \cdot \cos {i} \cdot [ 1 + \epsilon \cdot \cos{u - \omega}] </math>
Current Orbiter projects
- Space Shuttle Ultra project
- Black Dart project (military VTOL spaceplane with FBW and TVC)
- Starstreak (suborbital spaceplane)
- Soyuz launcher meshes
- SRTM data-to-mesh converter
- Ares V and Earth 2018 project
Technical Drawing Gallery
Some technical drawings I made, nothing too fancy.
Day | Sum | Average |
3 | 31 | 10.3 |
4 | 60 | 15 |
5 | 75 | 15 |
6 | 113 | 18.8 |
7 | 118 | 16.8 |
8 | 157 | 19.6 |