Space Infrared Telescope Facility (SIRTF) Before Launch

At the time of launch, the Spitzer Space Telescope bore its original name: the Space Infrared Telescope Facility (SIRTF). It's shown here in the mobile service tower on Launch Pad 17-B, Cape Canaveral Air Force Station, waiting for encapsulation. https://photojournal.jpl.nasa.gov/catalog/PIA23649