Launch of USA-273 on an Atlas V.
|Mission type||Infrared early warning|
|Operator||United States Air Force|
|Start of mission|
|Launch date||21 January 2017, 00:42UTC|
|Rocket||Atlas V 401 AV-066|
|Launch site||Cape Canaveral, SLC-41|
The SBIRS satellites are a replacement for the Defense Support Program early warning system. They are intended to detect ballistic missile launches, as well as various other events in the infrared spectrum, including nuclear explosions, aircraft flights, space object entries and reentries, wildfires and spacecraft launches.
- Ray, Justin (21 January 2017). "Atlas 5 rocket successfully delivers vital national asset into space". Spaceflight Now. Retrieved 21 January 2017.
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