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USA-66, also known as GPS IIA-1, GPS II-10 and GPS SVN-23, was an American navigation satellite which formed part of the Global Positioning System.It was the first of nineteen Block IIA GPS satellites to be launched, and was the oldest GPS satellite still in operation until its decommissioning on 25 January 2016.
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Soluble fms-like tyrosine kinase-1 (sFlt-1 or sVEGFR-1) is a tyrosine kinase protein with antiangiogenic properties. A non-membrane associated splice variant of VEGF receptor 1 (Flt-1), sFlt-1 binds the angiogenic factors VEGF (vascular endothelial growth factor) and PlGF (placental growth factor), reducing blood vessel growth through reduction of free VEGF and PlGF concentrations. [1]
USA-96 was launched at 17:04:00 UTC on 26 October 1993, atop a Delta II launch vehicle, flight number D223, flying in the 7925-9.5 configuration. [4] The launch took place from Launch Complex 17B (LC-17B) at the Cape Canaveral Air Force Station (CCAFS), [5] and placed USA-96 into a transfer orbit.
In probability theory, Luce's choice axiom, formulated by R. Duncan Luce (1959), [1] states that the relative odds of selecting one item over another from a pool of many items is not affected by the presence or absence of other items in the pool. Selection of this kind is said to have "independence from irrelevant alternatives" (IIA). [2]
USA-84 was launched at 08:57:00 UTC on 9 September 1992, atop a Delta II launch vehicle, flight number D214, flying in the 7925–9.5 configuration. [4] The launch took place from Launch Complex 17A (LC-17A) at the Cape Canaveral Air Force Station (CCAFS), [5] and placed USA-84 into a transfer orbit.
The final satellite of the Block IIA series was decommissioned on 09 October 2019. [4] The operational constellation now includes Block IIR, IIRM, IIF and III variants. Because the Evolved Expendable Launch Vehicles are more powerful than the Delta II , which was used to orbit earlier Block II GPS satellites, they can place the satellites ...
USA-343 was launched by SpaceX on 18 January 2023 at 12:24 UTC, atop Falcon 9 booster B1077.. The launch took place from SLC-40 at Cape Canaveral Space Force Station, and placed USA-343 directly into semi-synchronous orbit.