The never-before-seen footage, shot by a drone orbiting overhead at the time, shows six ballistic missiles hitting the base.
The CENTCOM, which is the top command overseeing the US military activities in the Middle East, provided the video first to CBS News' "60 Minutes" for a segment that aired this past weekend.
The video starts by identifying five ramps at Al-Assad – named Bravo, Charlie, Foxtrot, Valley, and Voodoo – and the number of aircraft positioned at the time of the attack.
The on-screen notes also indicate that there are usually 10 aircraft on the flight-line and that 51 fixed-wing aircraft and helicopters had evacuated the base ahead of the strikes.
The video then moves on to show two missiles hitting "expeditionary air maintenance facilities," a formal term for "tension-membrane" clamshell-type hangars, on the Bravo ramp. A third missile slams into the Charlie ramp, damaging additional clamshell hangars, as well as offices, living spaces, dining facilities, and latrines.
The fourth missile strikes the Voodoo ramp, hitting more clamshell hangars, as well as a fuel bladder. The last two missiles seen in the footage strike the Charlie and Valley ramps, hitting a rescue operations center, as well as maintenance facilities, a gym, and a dining hall.
In January 2020, Iran launched the largest ballistic missile attack ever against Americans. 60 Minutes has obtained unreleased footage of the incoming warheads.— 60 Minutes (@60Minutes) February 26, 2021
Sunday, David Martin reports on the attack that nearly caused war between the U.S. and Iran. https://t.co/au72TnHBTj pic.twitter.com/4O5j28mr8f
It's not clear what type of drone filmed the video in question, but it is known that a number of US Army MQ-1C Gray Eagles were airborne at the time and that some were kept on station due to fears that a complex ground attack could follow the missile barrage, according to The Drive website.
However, the strikes damaged fiber optic lines connecting ground control stations at Al-Assad to satellite terminals, cutting them off from the unmanned aircraft overhead. This may also explain, in part, why only six of the missile impacts are seen in the footage.