We know the KH-11 can obtain oblique views - the infamous KH-11 image tweeted by Trump was an oblique view. So it is not necessarily looking straight down. - Marco Op 19-6-2024 om 13:55 schreef Ted Molczan via Seesat-l: > My knowledge of imaging methods is superficial at best. If the spacecraft > is using the pushbroom method, then I believe that the spacecraft is > normally looking straight down at the Earth. Much has been written about > the subject. This paper seems like a good place to start. > > https://ssed.gsfc.nasa.gov/IPM/2012/PDF/publications/1149.pdf > > Ted Molczan > >> -----Original Message----- >> From: Seesat-l <seesat-l-bounces_at_lists.seesatmail.org> On Behalf Of Scott Tilley via >> Seesat-l >> Sent: Wednesday, June 19, 2024 12:41 AM >> To: seesat-l_at_lists.seesatmail.org >> Subject: Re: USA 245 orientation >> >> Hi Felix >> >> Generally speaking the KHs maneuver to boost their orbit for minor >> maintenance purposes from time to time (usually on a Thursday :-) ) or >> in special cases to change how they are positioned within their plane as >> the mission ages and evolves. There are records within the group that >> expand on this and I invite Ted to speak further here. >> >> http://www.satobs.org/seesat/Sep-2011/0113.html >> >> If I understand your context, you appear to be asking why the view of >> the satellite from your perspective appears the same. I suggest this is >> due to the fact that in most operational modes the spacecraft will just >> be house keeping especially over friendly territory where positional >> changes etc of the spacecraft's attitude will not be required for >> imaging and the more important to maintain standard communications and >> power headings. >> >> Regards >> >> Scott Tilley >> >> On 2024-06-18 15:49, Felix S. via Seesat-l wrote: >>> I assume these satellites would have to >>> maneuver when they observe a new target? >>> >> >> _______________________________________________ >> Seesat-l mailing list >> https://lists.seesatmail.org/mailman/listinfo/seesat-l > > > _______________________________________________ > Seesat-l mailing list > https://lists.seesatmail.org/mailman/listinfo/seesat-l -- ---- Dr Marco Langbroek e-mail: marco_at_langbroek.org web: www.langbroek.org Twitter: _at_Marco_Langbroek ---- _______________________________________________ Seesat-l mailing list https://lists.seesatmail.org/mailman/listinfo/seesat-lReceived on Wed Jun 19 2024 - 08:59:20 UTC
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