Talk:USA-223

Latest comment: 10 years ago by WDGraham in topic "World record"

"World record"

edit

I don't own a copy of Guinness World Records 2013, so I don't know whether the citation given for the claim that this is the "largest spy satellite ever launched" checks out or not, however even if the citation checks out I have severe reservations about reproducing that claim in the article.

  1. As the technical specifications of such satellites are highly classified, there is no way that the claim can be verified - either by us or by the publishers of the book.
  2. "Largest" is quite a subjective term - and could refer to surface area, dimensions or mass
  3. That said, the size of spacecraft is typically measured in terms of their mass. For USA-223 this is constrained by the ability to place it into geosynchronous orbit. KH-11 satellites, operated in low Earth orbits, are launched by the same type of rocket, while a payload at the upper end of the Delta IVH's GSO capacity could be placed into LEO with a much smaller rocket
  4. USA-237 required an upgraded Delta IV Heavy, to reach the same orbit as USA-223

So with that in mind I would suggest we remove, or at least de-emphasise the claim for the time being. --W. D. Graham 12:18, 13 January 2014 (UTC)Reply