Persistent Identifier
|
hdl:2014/53317 |
Publication Date
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2020-12-14 |
Title
| Design and Performance of the PALM-3000 3.5 kHz Upgrade |
Author
| Meeker, Seth R. (Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2020)
Truonga, Tuan N. (Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2020)
Roberts, Jennifer E. (Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2020)
Shelton, J. Chris (Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2020)
Fregoso, S. Felipe (Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2020)
Burruss, Rick S. (Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2020)
Dekany, Richard G. (Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2020)
Wallace, J. Kent (Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2020)
Baker, John W. (Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2020)
Heffner, Carolyn M. (Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2020)
Mawet, Dimitri (Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2020)
Rykoski, Kevin M. (Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2020)
Tesch, Jonathan A. (Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2020)
Vasisht, Gautam (Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2020) |
Point of Contact
|
Use email button above to contact.
Meeker, Seth R. |
Description
| PALM-3000 (P3K), the second-generation adaptive optics (AO) instrument for the 5.1 meter Hale telescope atPalomar Observatory, was released as a facility class instrument in October 2011 and has since been used on-skyfor over 600 nights as a workhorse science instrument and testbed for coronagraph and detector development.In late 2019 P3K underwent a significant upgrade to its wavefront sensor (WFS) arm and real-time control(RTC) system to reinforce its position as a state-of-the-art AO facility and extend its faint-end capability forhigh-resolution imaging and precision radial velocity follow-up of Kepler and TESS targets. The main featuresof this upgrade include an EM-CCD WFS camera capable of 3.5 kHz framerates, and an advanced Digital SignalProcessor (DSP) based RTC system to replace the aging GPU based system. Similar to the pre-upgrade system,the Shack-Hartmann wavefront sensor supports multiple pupil sampling modes using a motorized lenslet stage.The default sampling mode with 64×64 subapertures has been re-commissioned on-sky in late 2019, witha successful return to science observations in November 2019. In 64×mode the upgraded system is alreadyachieving K-band Strehl ratios up to 85% on-sky and can lock on natural guide stars as faint as mV=16. A16×16 subaperture mode is scheduled for on-sky commissioning in Fall 2020 and will extend the system’s faintlimit even further. Here we present the design and on-sky re-commissioning results of the upgraded system,dubbed P3K-II. |
Subject
| Other |