What was the 17th of the 19th block IIA satellites to be launched under the radio-navigation formerly known as "Navatstar"?
USA-126: USA-126, also known as GPS IIA-17, GPS II-26 and GPS SVN-40, is an American navigation satellite which forms part of the Global Positioning System. USA-126:  It was the seventeenth of nineteen Block IIA GPS satellites to be launched.
i don't know