The threshold for inclusion in the Tsiolkovsky Compendium is scientific and engineering validity. In science and engineering, validity generally refers to the extent to which a concept, conclusion or measurement is well-founded and corresponds accurately to the real world. Validity can be definitively established by experiment, or tentatively established by thorough and reasonable analysis or analogous demonstration.
Every piece of data, every analysis, and every result included in the Tsiolkovsky Compendium must be cited, preferably from multiple sources. Data, analysis, and results from peer reviewed journals, prior missions, and primary sources (reputable sources) are given more weight than non-reviewed articles, original research, or secondary sources.
It is okay to have works-in-progress that are not fully cited yet, as long as over time progress is made to track down those references.
It is also okay to contribute your own work or estimates, however you must be explicit when you do so and cite references for any assumptions made. One's own work is anything not constrained exactly by simple physical laws with no estimation involved.
This information should be posted the best way that the Tracer's wiki-code skills allow. I suggest a quick read of one of the relevant wikipedia entries.
Each page edited by a Tracer should be put in the category Tsiolkovsky Compendium. This can be done by putting the text:
At the bottom of the page.
Our first project is finding specific engineering information about Mars Direct. If anyone can find the specific masses of all of the components that would be very helpful.