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sa stands for stratospheric aerosol and

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gas experiment it's the third generation

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so we call it sage iii

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[Music]

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what it does is it looks at ozone

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water vapor aerosols in the atmosphere

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using a solar occultation technique so

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it locked onto the sun or the moon and

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it tracks that as it does as it rises

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through the atmosphere or sets through

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the atmosphere of the planet so that we

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can get vertical profiles of those gases

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more specifically it's ozone that we're

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really tracking

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we hope to see recovering ozone

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throughout the entire stratosphere so

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and you know ozone's very important it

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protects us from the uv radiation

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without that protection we would have

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lowered crop yields you know our plants

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really don't like uv radiation and we

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would have problems too we would have

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more skin cancers and cataracts so we

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really need that ozone layer in the

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stratosphere to protect us i've been

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working on this for 20 years now and

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it's it's it's going to be amazing to

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watch it up there and you know get up