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swift is an extremely successful nasa

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satellite that's operating right now

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it's named after a bird which chases

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insects well the swift satellite doesn't

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chase insects it chases gamma-ray bursts

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the swift instrument

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sees bursts in a different energy range

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than blast will look at it and the goal

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of swift is to

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rapidly repoint to pick up optical and

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x-ray emission

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glass is primarily

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devoted to seeing in a new energy range

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it's designed to pick up at the upper

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end of the swift energy range and carry

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it on up to much higher energies and it

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allows you to just see you know stranger

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and more exotic things the further up in

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glast and swift are very different swift

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is like a nimble small satellite that

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points here and there but it isn't

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surveying the whole sky it's pointing in

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its particular objects glass looks in

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the high-energy gamma-ray sky looks over

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the whole sky at all times

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one of the wonderful things about glass

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is that we see the whole sky effectively

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all the time you need to follow the

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object all the time in order to see its

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entire range of behavior

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we hope when glass and swift are up

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together that we can use them working

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simultaneously so when we see something

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interesting with glast we can ask swift

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to go look at it with their other

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telescopes and gain additional

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information about it

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we can use them working together to

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really do the gamma-ray science and