High-resolution infrared imaging utilizing a tip-tilt secondary mirror
- 31 May 1994
- proceedings article
- Published by SPIE-Intl Soc Optical Eng
- Vol. 2201, 447-457
- https://doi.org/10.1117/12.176078
Abstract
A tip-tilt secondary system has been developed on a 2.3 m telescope. The system, called FASTTRAC, stabilizes image motion to less than 0.1' rms at closed loop corrective frequencies of o approximately 4. FASTTRAC is unique in its ability to use infrared guide stars (K <EQ 8). Recently FASTTRAC was upgraded to accommodate a low read noise CCD, allowing faint visible guide stars to be utilized. We anticipate that guide stars of R equals 17 will be adequate at correction frequencies of 30 Hz.Keywords
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