WEBVTT FILE

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♪

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Thirty years ago, NASA launched
into a new era of high

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bandwidth, space communication
with the Tracking and Data Relay

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Satellite, TDRS...

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♪

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Today, NASA is continuing this
legacy by launching the next

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generation of satellites.

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<i>(countdown 10, 9 ...)</i>

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<i>At Cape Canaveral, the TDRS</i>
spacecraft
<i>(countdown 8, 7, 6 ...)</i>

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sits atop an Atlas 5 rocket
ready for launch...
<i>(countdown 5. 4. 3 ...)</i>

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<i>(countdown 2, 1, and)</i>

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<i>(LIFT OFF! of the Atlas 5 </i>
<i>rocket carrying)</i>

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<i>(the next generation of Tracking</i>
<i>and Data Relay Satellites)</i>

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<i>♪</i>

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After a 4-minute burn the Atlas 5
main engine separates from the

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Centaur engine, and drops
back to Earth.

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♪

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Shortly after separation of the
main engine, the protective

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shield that covers the payload,
called the fairing, separates to

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reveal the TDRS spacecraft.

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♪

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After boosting the spacecraft to
geosynchronous transferorbit,

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the TDRS spacecraft separates
from the Centaur engine.

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♪

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Shortly after this separation,
the two folded Single Access

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antenna reflectors are released
to take their natural parabolic

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shape.

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Over the next 11 days, through
a series of engine firings

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the TDRS on board rocket guides
the spacecraft to its final

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location in geosynchronous
orbit.

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♪

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Once arriving at this orbit, the
spacecraft starts its deployment

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sequence by unfolding
the first solar array.

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Next, the two single access
antennas are deployed and

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locked into position.

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These antennas are designed to
track and communicate with

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low-Earth orbit satellites.

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After the single access antennas
are secured into place, the

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second solar array starts
to unfold

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♪

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and the SGL and Omni
antennas are deployed.

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♪

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Once TDRS completes this
deployment sequence, its

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now ready for a three month
period of testing calibration

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before being placed into
service.

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♪

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With this addition of TDRS-L
and the upcoming TDRS-M,

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NASA has assured the future of
continuous Space to

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Ground Communication.

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♪

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Beep

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♪