Talk:ADM-Aeolus

Spaceflight Mid‑importance

	Spaceflight portal This article is within the scope of WikiProject Spaceflight, a collaborative effort to improve the coverage of spaceflight on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.SpaceflightWikipedia:WikiProject SpaceflightTemplate:WikiProject Spaceflightspaceflight articles
Mid	This article has been rated as Mid-importance on the project's importance scale.

Europe: ESA Mid‑importance

	Europe portal This article is within the scope of WikiProject Europe, an effort to build a comprehensive and detailed guide to European topics of a cross-border nature on Wikipedia.EuropeWikipedia:WikiProject EuropeTemplate:WikiProject EuropeEurope articles
Mid	This article has been rated as Mid-importance on the project's importance scale.
	This article is supported by ESA task force (assessed as High-importance).

Weather: Met instruments Mid‑importance

	Weather portal This article is within the scope of WikiProject Weather, which collaborates on weather and related subjects on Wikipedia. To participate, help improve this article or visit the project page for details. Articles Requested Project Resources Become a Member Project Talk Assessment A-Class Alerts WeatherWikipedia:WikiProject WeatherTemplate:WikiProject WeatherWeather articles
Mid	This article has been rated as Mid-importance on the project's importance scale.
	This article is supported by the Meteorological instruments and data task force (assessed as Mid-importance).

At what angle does ALADIN observe the atmosphere

Latest comment: 6 years ago4 comments2 people in discussion

It's only measuring line-of-sight velocities - so at what angle from the vertical does it observe the atmosphere ? Ahead/behind, or sideways to the satellite orbit ? Does the interpretation assume vertical velocities are zero ? - Rod57 (talk) 12:49, 9 September 2018 (UTC)Reply

Hello. I always enjoy your well-targeted questioning. ALADIN measures horizontally-projected single line-of-sight wind profiles. [1]. Since it operates at line-of-sight, I reckon it does so at any angle, and it may have the capability for vertical movement too as most lidars do for ranging, but the science objectives are on the horizontal (wind) movement. I think this instrument merits its own section, if not a separate article. Cheers, Rowan Forest (talk) 13:52, 9 September 2018 (UTC)Reply

Hi - thanks - I had just found the answer (35° from nadir - sideways to orbit) and updated the article (and was about to delete my questions). - Rod57 (talk) 14:01, 9 September 2018 (UTC)Reply

It does seem a magnificent instrument. I was sad to see the satellite life is only about 3 years. I expect that now/when it's seen to work there will be more ALADINs put in orbit, and the ALADIN section can be split out. - Rod57 (talk) 16:55, 9 September 2018 (UTC)Reply

More spacecraft details

Latest comment: 5 years ago2 comments2 people in discussion

Lots more on the spacecraft design and control and operations at [2] - it's a long page (that is updated with news) - hard to reference sections within it. 4 reaction wheels, 3 magnetic torquers, 4 hydrazine thrusters ... - Rod57 (talk) 14:01, 9 September 2018 (UTC)Reply

Excellent pointer! This contains the latest mission status, so I'll update the article as of the July 2019 update. - DutchTreat (talk) 11:48, 23 August 2019 (UTC)Reply

Add topic