Aerospace

PACE Yourself: U.S. Marine Band Tries to Match Spacecraft’s Acoustic Levels

The Plankton, Aerosol, Cloud ocean Ecosystem (PACE) mission Systems Engineer Gary Davis has enlisted the help of the U.S. Marine Band to see if the musicians can match the acoustic levels the spacecraft is subjected to in testing. Thirty-seven members of the band and Davis set up at Goddard Space Flight Center on May 3 to perform, with the acoustics chamber otherwise empty. The full level it gets up to is 140 decibels; watch this video to see how the band stacked up.


Topics:
Aerospace

Transcript

00:00:03 Now fully assembled, the PACE spacecraft nears completion of its final environmental tests at NASA’s Goddard Space Flight Center. These tests ensure the spacecraft can survive the rigors of launch and orbit early next year. The spacecraft and instruments are all together assembled in this chamber behind me, and we are blasting them with acoustic energy to look at the response of the different parts of the observatory and make sure nothing gets damaged. And the reason we do this is to simulate the launch environment for the vibration in the acoustic range during launch. Today the full level that we get up to is almost 140 decibels, which is very loud.

00:00:47 It would definitely damage your hearing. It's like the same kind of noise you'd hear if you're close to an airplane with a jet engine or a very loud rock concert near the speakers. For years, I've been witnessing tests in this chamber for various missions, and I always see the large speakers in there, and they're shaped like cones, which remind me of bells of brass instruments. And so I thought, you know, what could we do to have a group of musicians play and see if they could equal the sound that we simulate during one of our launch acoustics tests. [”Also Sprach Zarathustra” plays]

00:02:30 The Marine Band didn’t quite match the same sound levels PACE withstood, but made a different lasting impression... The musicians composed a fanfare for PACE’s journey. [loud drum hit followed by a swell of orchestral music]