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2011 Annual Report - MIT Lincoln Laboratory

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technology transfer<br />

“First try, first light.”<br />

Space Surveillance Telescope<br />

On 15 February <strong>2011</strong>, researchers working on the Space<br />

Surveillance Telescope (SST) at North Oscura Peak in<br />

New Mexico sent a jubilant message to the SST sponsor<br />

and developers, “First try, first light!” This success was<br />

the culmination of several years of development.<br />

Under sponsorship of the Defense Advanced<br />

Research Projects Agency (DARPA), the SST program<br />

was initiated in 2002 to develop and demonstrate<br />

technology for a new generation of very wide field-ofview,<br />

synoptic, space surveillance systems capable<br />

of achieving very high search rates, while maintaining<br />

adequate sensitivity to detect very small microsatellites<br />

at geosynchronous distances.<br />

20 <strong>2011</strong> <strong>Annual</strong> <strong>Report</strong><br />

—Researchers working on the<br />

Space Surveillance Telescope<br />

sited at North Oscura Peak,<br />

New Mexico, 15 February <strong>2011</strong><br />

To meet these requirements, the SST required a 3.5 m<br />

telescope, much larger than the 1-meter-class groundbased<br />

electro-optical telescopes previously used.<br />

Because the optical design also had to maintain a very<br />

large field of view, an f/1 Mersenne-Schmidt design was<br />

selected, employing three mirrors, corrector optics, and<br />

a curved focal surface that is centrally located within<br />

the telescope structure.<br />

To realize that curved-focal-surface detector, <strong>Lincoln</strong><br />

<strong>Laboratory</strong> developed a unique, curved chargecoupled-device<br />

(CCD) imager that consisted of a<br />

large-format, full-frame, rapid-readout, low-noise<br />

imager that was conformally bonded to a curved silicon<br />

ABOVE: A new<br />

observatory featuring<br />

a traditional rotating<br />

dome enclosure and an<br />

attached control building<br />

was constructed in 2010<br />

to house the SST. The<br />

North Oscura site was<br />

chosen for this telescope<br />

because the mountain top<br />

site provides pristinely<br />

dark, high-altitude<br />

observing.

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