We describe the current status of the Palomar 200 inch adaptive optics system, which in December of 1998 achieved its first high order (241 actuators) lock on a natural guide star.

adaptive↗

NASA NTRS2000

DCATT Dispersed Fringe Sensor: Modeling and Experimenting with the Transmissive Phase Plates

Control algorithms developed for coarse phasing the segmented mirrors of the Next Generation Space Telescope (NGST)are being tested in realistic modeling and on the NGST wavefront control testbed, also known as DCATT.

space↗

NASA NTRS2000

Telescope Simulator for the Nexus Wavefront Control Testbed

A telescope simulator was built as part of the Nexus wavefront control testbed, an NGST technology experiment at NASA's Goddard Space Flight Center.

NGST↗

NASA NTRS2000

Solar System Science with Subarcsecond Slit Spectroscopy

UNKNOWN

adaptive↗

NASA NTRS2000

Performance of the NGST Wavefront Control System as Tested on DCATT

The NGST wavefront control testbed (also known as DCATT) is being used to map out the accuracy and dynamic range of the baseline NGST wavefront control system.

wavefront control large optics wave front sensing ↗

NASA NTRS1999

DCATT Dispersed Fringe Sensor (DFS) -- Modeling and Experiment with Transmissive Phase Plates

The alignment and phasing control of NGST's segment primary mirrors use images from the science camera instead of dedicated instruments.

Wavefront sensing wavefront correction dispersed f↗

NASA NTRS1999

NGST Wavefront Control: Lessons Learned from DCATT and Nexu

Explore the source record for details and available documents.

NGST Wavefront Control NGST Lessons DCATT Nexu↗