Talk:Orbital station-keeping

message: === Cleanup ===
I cleaned up the paragraph breaks and did a little bit of copy editing. No content was changed in any of that. I also removed an irrelevant reference to Arthur C. Clarke for two reasons:
1. A reader who did not know that Clarke lives in Sri Lanka would have no idea at all why he's mentioned here; such a reader might speculate that Clarke wrote something about the stable point above Sri Lanka instead.
2. Clarke's residence in Sri Lanka has nothing to do with the stable point, or station keeping in general. If I am wrong and it does, please restore the Clarke reference with an explanation of that relevance.
=== What exactly is the Tennis Ball Effect? ===
Is this a slang term, something made up, or is it for real?
Is there a tecnical term that could be substituted here, an explanation tendered, or an article written to explain the "Tennis Ball Effect"?
: Now removed, but I understand it refers to the path a satellite takes following North-south drift and some east-west drift if all remain uncorrected.  If east-west systemic drift is eliminated, satellites follow a figure-of-eight path (with the remaining east-west drift being a time of day phenomenon). If there is more systematic east-west drift, the path becomes more swirly, like the join line on a tennis ball.  Not a known scientific term but descriptive.  Martin 17:07, 19 December 2007 (UTC)
replies: text: New discussion goes at the bottom.  Thanks. –EdC 06:49, 8 March 2007 (UTC)

text: Added merge tags to both articles. –EdC 06:49, 8 March 2007 (UTC)

text: I've done the latter. –EdC 23:16, 11 March 2007 (UTC)
thread_title: Post-merge talk migration from [[Talk:Station keeping]]

message: Is this a slang term, something made up, or is it for real?
Is there a tecnical term that could be substituted here, an explanation tendered, or an article written to explain the "Tennis Ball Effect"?
: Now removed, but I understand it refers to the path a satellite takes following North-south drift and some east-west drift if all remain uncorrected.  If east-west systemic drift is eliminated, satellites follow a figure-of-eight path (with the remaining east-west drift being a time of day phenomenon). If there is more systematic east-west drift, the path becomes more swirly, like the join line on a tennis ball.  Not a known scientific term but descriptive.  Martin 17:07, 19 December 2007 (UTC)
thread_title:  What exactly is the Tennis Ball Effect? 

message: The "Orbital stationkeeping" should probably be merged into this one, but I do not know the process by which that should be recommended or implemented.
Andrew8
: New discussion goes at the bottom.  Thanks. –EdC 06:49, 8 March 2007 (UTC)
replies: text: Added merge tags to both articles. –EdC 06:49, 8 March 2007 (UTC)

text: I've done the latter. –EdC 23:16, 11 March 2007 (UTC)
thread_title:  Merge proposal 

message: Which one is it? Stationkeeping is not in the dictionary. I suggest rename. Objections? Javit 18:48, 28 May 2007 (UTC)
replies: text: Which dictionary, and to what? –EdC 20:27, 29 May 2007 (UTC)
replies: text: Meriam-Webster. Should be station-keeping according to Spacecraft System Engineering Ed. Graham Swinerd et al. WILEY.  I will go ahead with it. Javit 20:35, 29 May 2007 (UTC)
thread_title:  stationkeeping vs station keeping vs station-keeping 

message: This section seems like it repeats itself.  —Preceding unsigned comment added by Jdkessler (talk • contribs) 14:42, 2 October 2007 (UTC)
replies: text: Agreed - I put the first half in, but the second contributor has added extra useful information.  Do you want to merge the two - if so, please go right ahead.  --Martin (talk) 17:16, 19 December 2007 (UTC)
thread_title:  GEO Station Keeping 

message: How different or similar is station-keeping in Lagrangian orbits?  For example, I understat that the James Webb Space Telescope (Hubble telescope replacement/enhancer in 2015 or so) will orbit Earth-Sun L2 Lagrange point in an elliptical orbit of some 800 km diameter.  What is involved in station-keeping in such an orbit?  How meta-stable is such an orbit and will this require more fuel-per-spacecraft-unit-mass than required for more standard orbits?  Thanks for any help or sources you can point to.  Cheers.  N2e (talk) 02:47, 10 January 2011 (UTC)
thread_title:  Station-keeping in Lagrangian orbits 

message: The text here about station keeping for geostationary spacecraft is quite good but I think it should be put in the article Geostationary satellites.  "Orbital station keeping" is in fact a very general concept, really too general to be an individual article!  Here there should only be a few rather general statements and then references to the different types of station keeping strategies for the many different kinds of orbits!
Stamcose (talk) 11:59, 27 July 2011 (UTC)
thread_title:  GEO station keeping again 

message: In the section above I say that in my opinion this whole matter should be re-organised!
But apart from this the introduction to this article is not really acceptable!
*"either low earth orbit (LEO), or geostationary orbit (GEO)"
As if these were the only two types of orbits!
*"It is especially important for satellite communications systems"
Why should this be specially important?
*"Due to its usually low requirements for propulsive impulses the station-keeping is usually performed using attitude control system's thrusters."
Then it is the Attitude and Orbit Control System, this is the common term
*"Station-keeping is particularly difficult for spin-stabilized satellites."
Why should this be the case?
*"Automatic and Earth-station systems monitor a satellite's position with telemetry instrumentation and make any required corrections using on-board thruster systems."
?????. Does the author think about autonomous systems?
Stamcose (talk) 13:00, 27 July 2011 (UTC)
replies: text: No objection. The new introduction is much better in my opinion. Just replace it. Mikeo (talk) 19:24, 28 July 2011 (UTC)
thread_title:  Critics of the introduction